编码规范

避免坏习惯

①　代码重复几乎是最常见的坏习惯。代码重复往往来自于copy-and-paste的编程风格。

②　代码很长的方法：一个方法应当具有自我独立的意图，不要把几个意图放在一起。

③　大类：就是把太多的责任交给一个类，应该是一个类一个责任，这个和长方法相似。

④　一起出现在很多类的成员变量中，一起出现在许多方法的参数中…..，这些数据或许应该自己独立形成对象。

⑤　一个干活不多的类。类的维护需要额外的开销，如果一个类承担了太少的责任，应当消除它。

⑥　一个类实现了从未用到的功能和通用性。通常这样的类或方法唯一的用户是testcase。不要犹豫，删除它。

⑦　一个对象的属性可能只在某些情况下才有意义。这样的代码将难以理解。专门建立一个对象来持有这样的孤儿属性，把只和他相关的行为移到该类。最常见的是一个特定的算法需要某些只有该算法才有用的变量。

⑧　做相同事情的方法有不同的函数，一致把它们往类层次上移，直至协议一致。

⑨　对象包括状态和行为。如果一个类只有状态没有行为，那么肯定有什么地方出问题了。

⑩　经常觉得要写很多注释才能解释你的代码，如果这种感觉太多，表示你需要重构。

代码格式化

在Eclipse中导入Formatter和Importor

1.       注释模板

在eclipse 的preferences 中，选择 java à code style àcode Template

1. 添加文件创建日志模板

 

2.设置类注释模板

将这个import到java code style中code template

 

<?xml version="1.0" encoding="UTF-8"?>

-<templates>

<template name="gettercomment" id="org.eclipse.jdt.ui.text.codetemplates.gettercomment" enabled="true" description="Comment for getter method" deleted="false" context="gettercomment_context" autoinsert="true">/** * @return the ${bare_field_name} */</template>

<template name="settercomment" id="org.eclipse.jdt.ui.text.codetemplates.settercomment" enabled="true" description="Comment for setter method" deleted="false" context="settercomment_context" autoinsert="true">/** * @param ${param} the ${bare_field_name} to set */</template>

<template name="constructorcomment" id="org.eclipse.jdt.ui.text.codetemplates.constructorcomment" enabled="true" description="Comment for created constructors" deleted="false" context="constructorcomment_context" autoinsert="true">/** * ${tags} */</template>

<template name="filecomment" id="org.eclipse.jdt.ui.text.codetemplates.filecomment" enabled="true" description="Comment for created Java files" deleted="false" context="filecomment_context" autoinsert="false">/* * ${file_name} * classes : ${package_name}.${type_name} * @author 魏铮铮 * V 1.0.0 * Create at ${date} ${time} */</template>

<template name="typecomment" id="org.eclipse.jdt.ui.text.codetemplates.typecomment" enabled="true" description="Comment for created types" deleted="false" context="typecomment_context" autoinsert="false">/** * ${package_name}.${type_name} * @author 魏铮铮 <br/> * ${tags} * create at ${date} ${time} */</template>

<template name="fieldcomment" id="org.eclipse.jdt.ui.text.codetemplates.fieldcomment" enabled="true" description="Comment for fields" deleted="false" context="fieldcomment_context" autoinsert="true">/** * */</template>

<template name="methodcomment" id="org.eclipse.jdt.ui.text.codetemplates.methodcomment" enabled="true" description="Comment for non-overriding methods" deleted="false" context="methodcomment_context" autoinsert="true">/** * ${tags} */</template>

<template name="overridecomment" id="org.eclipse.jdt.ui.text.codetemplates.overridecomment" enabled="true" description="Comment for overriding methods" deleted="false" context="overridecomment_context" autoinsert="true">/* (non-Javadoc) * ${see_to_overridden} */</template>

<template name="delegatecomment" id="org.eclipse.jdt.ui.text.codetemplates.delegatecomment" enabled="true" description="Comment for delegate methods" deleted="false" context="delegatecomment_context" autoinsert="true">/** * ${tags} * ${see_to_target} */</template>

<template name="newtype" id="org.eclipse.jdt.ui.text.codetemplates.newtype" enabled="true" description="Newly created files" deleted="false" context="newtype_context" autoinsert="false">${filecomment} ${package_declaration} ${typecomment} ${type_declaration}</template>

<template name="classbody" id="org.eclipse.jdt.ui.text.codetemplates.classbody" enabled="true" description="Code in new class type bodies" deleted="false" context="classbody_context" autoinsert="false">private static final String TAG = "${type_name}"; </template>

<template name="interfacebody" id="org.eclipse.jdt.ui.text.codetemplates.interfacebody" enabled="true" description="Code in new interface type bodies" deleted="false" context="interfacebody_context" autoinsert="true"> </template>

<template name="enumbody" id="org.eclipse.jdt.ui.text.codetemplates.enumbody" enabled="true" description="Code in new enum type bodies" deleted="false" context="enumbody_context" autoinsert="true"> </template>

<template name="annotationbody" id="org.eclipse.jdt.ui.text.codetemplates.annotationbody" enabled="true" description="Code in new annotation type bodies" deleted="false" context="annotationbody_context" autoinsert="true"> </template>

<template name="catchblock" id="org.eclipse.jdt.ui.text.codetemplates.catchblock" enabled="true" description="Code in new catch blocks" deleted="false" context="catchblock_context" autoinsert="false">LogUtil.e(TAG,"",${exception_var});</template>

<template name="methodbody" id="org.eclipse.jdt.ui.text.codetemplates.methodbody" enabled="true" description="Code in created method stubs" deleted="false" context="methodbody_context" autoinsert="false">${body_statement}</template>

<template name="constructorbody" id="org.eclipse.jdt.ui.text.codetemplates.constructorbody" enabled="true" description="Code in created constructor stubs" deleted="false" context="constructorbody_context" autoinsert="false">${body_statement}</template>

<template name="getterbody" id="org.eclipse.jdt.ui.text.codetemplates.getterbody" enabled="true" description="Code in created getters" deleted="false" context="getterbody_context" autoinsert="false">return this.${field};</template>

<template name="setterbody" id="org.eclipse.jdt.ui.text.codetemplates.setterbody" enabled="true" description="Code in created setters" deleted="false" context="setterbody_context" autoinsert="false">this.${field} = ${param};</template>

</templates>

 

 

导入方法

在eclipse 的preferences 中，选择 java à code style àcode Template 中选择 Import，选择附件中的文件。

 

但是注意修改类注释和文件注释的作者名称为自己的！

 

格式化模板

在eclipse 的preferences 中，选择 java à code style àformatter 中选择 Import，选择附件中的文件。

 

formatter.xml

<?xml version="1.0" encoding="UTF-8"?>

-<profiles version="12">


-<profile version="12" name="Lucifer" kind="CodeFormatterProfile">

<setting value="insert" id="org.eclipse.jdt.core.formatter.comment.insert_new_line_before_root_tags"/>

<setting value="@formatter:off" id="org.eclipse.jdt.core.formatter.disabling_tag"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_annotation"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_type_parameters"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_type_declaration"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_arguments"/>

<setting value="end_of_line" id="org.eclipse.jdt.core.formatter.brace_position_for_anonymous_type_declaration"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_case"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_brace_in_array_initializer"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.comment.new_lines_at_block_boundaries"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_annotation_declaration"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_new_line_before_closing_brace_in_array_initializer"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_annotation"/>

<setting value="0" id="org.eclipse.jdt.core.formatter.blank_lines_before_field"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_while"/>

<setting value="false" id="org.eclipse.jdt.core.formatter.use_on_off_tags"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_annotation_type_member_declaration"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_new_line_before_else_in_if_statement"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_prefix_operator"/>

<setting value="false" id="org.eclipse.jdt.core.formatter.keep_else_statement_on_same_line"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_ellipsis"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.comment.insert_new_line_for_parameter"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_annotation_type_declaration"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.indent_breaks_compare_to_cases"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_at_in_annotation"/>

<setting value="16" id="org.eclipse.jdt.core.formatter.alignment_for_multiple_fields"/>

<setting value="16" id="org.eclipse.jdt.core.formatter.alignment_for_expressions_in_array_initializer"/>

<setting value="80" id="org.eclipse.jdt.core.formatter.alignment_for_conditional_expression"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_for"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_binary_operator"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_question_in_wildcard"/>

<setting value="end_of_line" id="org.eclipse.jdt.core.formatter.brace_position_for_array_initializer"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_enum_constant"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_new_line_before_finally_in_try_statement"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_local_variable"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_new_line_before_catch_in_try_statement"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_while"/>

<setting value="1" id="org.eclipse.jdt.core.formatter.blank_lines_after_package"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_parameters"/>

<setting value="2" id="org.eclipse.jdt.core.formatter.continuation_indentation"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_postfix_operator"/>

<setting value="16" id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_method_invocation"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_arguments"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_superinterfaces"/>

<setting value="1" id="org.eclipse.jdt.core.formatter.blank_lines_before_new_chunk"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_binary_operator"/>

<setting value="0" id="org.eclipse.jdt.core.formatter.blank_lines_before_package"/>

<setting value="1.5" id="org.eclipse.jdt.core.compiler.source"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_enum_constant_arguments"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_constructor_declaration"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.comment.format_line_comments"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_closing_angle_bracket_in_type_arguments"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_enum_declarations"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.join_wrapped_lines"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_block"/>

<setting value="16" id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_explicit_constructor_call"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_invocation_arguments"/>

<setting value="1" id="org.eclipse.jdt.core.formatter.blank_lines_before_member_type"/>

<setting value="false" id="org.eclipse.jdt.core.formatter.align_type_members_on_columns"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_enum_constant"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_for"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_method_declaration"/>

<setting value="16" id="org.eclipse.jdt.core.formatter.alignment_for_selector_in_method_invocation"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_switch"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_unary_operator"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_case"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.comment.indent_parameter_description"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_method_declaration"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_switch"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_enum_declaration"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_parameters"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_type_declaration"/>

<setting value="false" id="org.eclipse.jdt.core.formatter.comment.clear_blank_lines_in_block_comment"/>

<setting value="120" id="org.eclipse.jdt.core.formatter.lineSplit"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_if"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_between_brackets_in_array_type_reference"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_parenthesized_expression"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_explicitconstructorcall_arguments"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_constructor_declaration"/>

<setting value="0" id="org.eclipse.jdt.core.formatter.blank_lines_before_first_class_body_declaration"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_method"/>

<setting value="2" id="org.eclipse.jdt.core.formatter.indentation.size"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_declaration"/>

<setting value="@formatter:on" id="org.eclipse.jdt.core.formatter.enabling_tag"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_enum_constant"/>

<setting value="16" id="org.eclipse.jdt.core.formatter.alignment_for_superclass_in_type_declaration"/>

<setting value="0" id="org.eclipse.jdt.core.formatter.alignment_for_assignment"/>

<setting value="error" id="org.eclipse.jdt.core.compiler.problem.assertIdentifier"/>

<setting value="space" id="org.eclipse.jdt.core.formatter.tabulation.char"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_constructor_declaration_parameters"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_prefix_operator"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.indent_statements_compare_to_body"/>

<setting value="1" id="org.eclipse.jdt.core.formatter.blank_lines_before_method"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.wrap_outer_expressions_when_nested"/>

<setting value="false" id="org.eclipse.jdt.core.formatter.format_guardian_clause_on_one_line"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_for"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_cast"/>

<setting value="16" id="org.eclipse.jdt.core.formatter.alignment_for_parameters_in_constructor_declaration"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_labeled_statement"/>

<setting value="end_of_line" id="org.eclipse.jdt.core.formatter.brace_position_for_annotation_type_declaration"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_method_body"/>

<setting value="0" id="org.eclipse.jdt.core.formatter.alignment_for_method_declaration"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_method_invocation"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_bracket_in_array_allocation_expression"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_enum_constant"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_annotation"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_at_in_annotation_type_declaration"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_declaration_throws"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_if"/>

<setting value="end_of_line" id="org.eclipse.jdt.core.formatter.brace_position_for_switch"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_declaration_throws"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_parenthesized_expression_in_return"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_annotation"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_question_in_conditional"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_question_in_wildcard"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_bracket_in_array_allocation_expression"/>

<setting value="false" id="org.eclipse.jdt.core.formatter.comment.preserve_white_space_between_code_and_line_comments"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_parenthesized_expression_in_throw"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_type_arguments"/>

<setting value="error" id="org.eclipse.jdt.core.compiler.problem.enumIdentifier"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.indent_switchstatements_compare_to_switch"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_ellipsis"/>

<setting value="end_of_line" id="org.eclipse.jdt.core.formatter.brace_position_for_block"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_for_inits"/>

<setting value="end_of_line" id="org.eclipse.jdt.core.formatter.brace_position_for_method_declaration"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.compact_else_if"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_array_initializer"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_for_increments"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.format_line_comment_starting_on_first_column"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_bracket_in_array_reference"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_field"/>

<setting value="end_of_line" id="org.eclipse.jdt.core.formatter.brace_position_for_enum_constant"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.comment.indent_root_tags"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_enum_declarations"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_explicitconstructorcall_arguments"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_switch"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_declaration_parameters"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_superinterfaces"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_allocation_expression"/>

<setting value="2" id="org.eclipse.jdt.core.formatter.tabulation.size"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_type_reference"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_new_line_after_opening_brace_in_array_initializer"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_closing_brace_in_block"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_reference"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_enum_constant"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_type_arguments"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_constructor_declaration"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_if"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_constructor_declaration_throws"/>

<setting value="false" id="org.eclipse.jdt.core.formatter.comment.clear_blank_lines_in_javadoc_comment"/>

<setting value="16" id="org.eclipse.jdt.core.formatter.alignment_for_throws_clause_in_constructor_declaration"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_assignment_operator"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_assignment_operator"/>

<setting value="false" id="org.eclipse.jdt.core.formatter.indent_empty_lines"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_synchronized"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_closing_paren_in_cast"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_declaration_parameters"/>

<setting value="end_of_line" id="org.eclipse.jdt.core.formatter.brace_position_for_block_in_case"/>

<setting value="1" id="org.eclipse.jdt.core.formatter.number_of_empty_lines_to_preserve"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_method_declaration"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_catch"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_constructor_declaration"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_method_invocation"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_bracket_in_array_reference"/>

<setting value="16" id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_qualified_allocation_expression"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_and_in_type_parameter"/>

<setting value="1.5" id="org.eclipse.jdt.core.compiler.compliance"/>

<setting value="2" id="org.eclipse.jdt.core.formatter.continuation_indentation_for_array_initializer"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_between_empty_brackets_in_array_allocation_expression"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_at_in_annotation_type_declaration"/>

<setting value="16" id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_allocation_expression"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_cast"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_unary_operator"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_parameterized_type_reference"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_anonymous_type_declaration"/>

<setting value="false" id="org.eclipse.jdt.core.formatter.keep_empty_array_initializer_on_one_line"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_enum_declaration"/>

<setting value="false" id="org.eclipse.jdt.core.formatter.keep_imple_if_on_one_line"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_constructor_declaration_parameters"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_closing_angle_bracket_in_type_parameters"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_new_line_at_end_of_file_if_missing"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_for"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_labeled_statement"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_parameterized_type_reference"/>

<setting value="16" id="org.eclipse.jdt.core.formatter.alignment_for_superinterfaces_in_type_declaration"/>

<setting value="16" id="org.eclipse.jdt.core.formatter.alignment_for_binary_expression"/>

<setting value="end_of_line" id="org.eclipse.jdt.core.formatter.brace_position_for_enum_declaration"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_type"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_while"/>

<setting value="enabled" id="org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.put_empty_statement_on_new_line"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_new_line_after_label"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_parameter"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_type_parameters"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_invocation"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_new_line_before_while_in_do_statement"/>

<setting value="16" id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_enum_constant"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.comment.format_javadoc_comments"/>

<setting value="80" id="org.eclipse.jdt.core.formatter.comment.line_length"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_package"/>

<setting value="1" id="org.eclipse.jdt.core.formatter.blank_lines_between_import_groups"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_enum_constant_arguments"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon"/>

<setting value="end_of_line" id="org.eclipse.jdt.core.formatter.brace_position_for_constructor_declaration"/>

<setting value="0" id="org.eclipse.jdt.core.formatter.number_of_blank_lines_at_beginning_of_method_body"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_conditional"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_type_header"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_annotation_type_member_declaration"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.wrap_before_binary_operator"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_enum_declaration_header"/>

<setting value="1" id="org.eclipse.jdt.core.formatter.blank_lines_between_type_declarations"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_synchronized"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.indent_statements_compare_to_block"/>

<setting value="16" id="org.eclipse.jdt.core.formatter.alignment_for_superinterfaces_in_enum_declaration"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.join_lines_in_comments"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_question_in_conditional"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_multiple_field_declarations"/>

<setting value="16" id="org.eclipse.jdt.core.formatter.alignment_for_compact_if"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_for_inits"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.indent_switchstatements_compare_to_cases"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_array_initializer"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_default"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_and_in_type_parameter"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_constructor_declaration"/>

<setting value="1" id="org.eclipse.jdt.core.formatter.blank_lines_before_imports"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_assert"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.comment.format_html"/>

<setting value="16" id="org.eclipse.jdt.core.formatter.alignment_for_throws_clause_in_method_declaration"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_parameters"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_allocation_expression"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_anonymous_type_declaration"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_conditional"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_parameterized_type_reference"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_for"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_postfix_operator"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.comment.format_source_code"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_synchronized"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_allocation_expression"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_constructor_declaration_throws"/>

<setting value="16" id="org.eclipse.jdt.core.formatter.alignment_for_parameters_in_method_declaration"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_brace_in_array_initializer"/>

<setting value="1.5" id="org.eclipse.jdt.core.compiler.codegen.targetPlatform"/>

<setting value="false" id="org.eclipse.jdt.core.formatter.use_tabs_only_for_leading_indentations"/>

<setting value="0" id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_annotation"/>

<setting value="false" id="org.eclipse.jdt.core.formatter.comment.format_header"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.comment.format_block_comments"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_enum_constant"/>

<setting value="48" id="org.eclipse.jdt.core.formatter.alignment_for_enum_constants"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_block"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_annotation_declaration_header"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_parenthesized_expression"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_parenthesized_expression"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_catch"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_multiple_local_declarations"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_switch"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_for_increments"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_method_invocation"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_assert"/>

<setting value="end_of_line" id="org.eclipse.jdt.core.formatter.brace_position_for_type_declaration"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_array_initializer"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_between_empty_braces_in_array_initializer"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_method_declaration"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_for"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_catch"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_parameterized_type_reference"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_multiple_field_declarations"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_annotation"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_parameterized_type_reference"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_invocation_arguments"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.comment.new_lines_at_javadoc_boundaries"/>

<setting value="1" id="org.eclipse.jdt.core.formatter.blank_lines_after_imports"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_multiple_local_declarations"/>

<setting value="true" id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_enum_constant_header"/>

<setting value="insert" id="org.eclipse.jdt.core.formatter.insert_space_after_semicolon_in_for"/>

<setting value="false" id="org.eclipse.jdt.core.formatter.never_indent_line_comments_on_first_column"/>

<setting value="do not insert" id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_arguments"/>

<setting value="false" id="org.eclipse.jdt.core.formatter.never_indent_block_comments_on_first_column"/>

<setting value="false" id="org.eclipse.jdt.core.formatter.keep_then_statement_on_same_line"/>

</profile>

</profiles>

 

 

XML格式化

在eclipse 的preferences 中，选择 xml à xml files à xml editor 中 做如下设置  preferences 是在windows-》preferences下面。

 

 

 

使用格式化的快捷键是ctrl+shift+f

使用插入注释的快捷键是alt+shift+J，不过一般插入注释都是设置为自动的。