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package object01; interface Eatable {	void taste();} interface Flyable {	void fly(String weather);} interface Addable {	double add(int a, double b);}     阅读全文 
                posted @ 2019-01-22 20:00
Lovemeifyoudare
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package object01; public enum Season { //定义枚举类	spring, summer, autumn, winter;} //测试 public class EnumTest {	public void judge(Season a) { switch (a)     阅读全文 
                posted @ 2019-01-22 19:53
Lovemeifyoudare
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package object01; public interface Command {//定义一个接口 让其他类去实现	void pArray(int[] arr); //打印数组 int addArray(int[] arr); //数组求和} public class InplementArr    阅读全文 
                posted @ 2019-01-22 19:44
Lovemeifyoudare
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建立一个包含学生、家长、老师、班级的学校管理模型,系统录入、查询学生信息、家长信息、老师,以及班级的信息,注意,要建立各信息间的关联 //学生类 package demo; public class Student {	private String name;	private int Cid;	pr    阅读全文 
                posted @ 2019-01-22 18:31
Lovemeifyoudare
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package baseClass7; import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.util.Map;import java.u    阅读全文 
                posted @ 2019-01-22 18:22
Lovemeifyoudare
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package baseClass7; public class StringBuilderClass {	public static void main(String[] args) { String s1 = "chaoqiqiang.chaoqq.cqq"; String s2 = ".cha    阅读全文 
                posted @ 2019-01-22 18:21
Lovemeifyoudare
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package baseClass7; import java.io.IOException; public class RuntimeTest {	public static void main(String[] args) { // 获取Java程序关联的运行时对象 Runtime rt = R    阅读全文 
                posted @ 2019-01-22 18:08
Lovemeifyoudare
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public class RecursionJJ {	public static void main(String args[]) { m(9);	} public static void m(int i) { if (i == 1) { System.out.println("1*1=1 ");     阅读全文 
                posted @ 2019-01-22 18:02
Lovemeifyoudare
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public class YmDay {	public static void main(String[] args) { int year = 2009, month = 1, day = 8; int m2; if (year % 100 == 0 && year % 400 == 0 || y    阅读全文 
                posted @ 2019-01-22 17:49
Lovemeifyoudare
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public class Shuzunixu {	public static void main(String arg[]) { Array(new int[] { 1, 2, 3, 4, 5, 6 });	} public static void Array(int arr[]) { for (i    阅读全文 
                posted @ 2019-01-22 17:30
Lovemeifyoudare
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public class Shuzu { public static void main(String arg[]) { printArray(new int[] { 1, 2, 3 });	} public static void printArray(int[] arr) { System.ou    阅读全文 
                posted @ 2019-01-22 17:22
Lovemeifyoudare
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public class Select {	public static void main(String[] args) { selectArray(new int[] { 6, 73, 23, 15, 45, 20, 56, 3, 89 });	} public static void selec    阅读全文 
                posted @ 2019-01-22 17:16
Lovemeifyoudare
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package test; public class Maopao {	public static void main(String[] args) { array(new int[] { 6, 73, 23, 15, 45, 20, 56, 3, 89 });	} public static vo    阅读全文 
                posted @ 2019-01-22 16:57
Lovemeifyoudare
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import java.util.Arrays; public class Kong {	public static void main(String[] args) { int[] arr = { 'a',99, 93, 92, 97, 'b' }; int[] arr2 = {97, 'c',     阅读全文 
                posted @ 2019-01-22 16:16
Lovemeifyoudare
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package test; public class HanZhuanMa {	public static void main(String[] args) { String cn = "麒强"; System.out.println(cnToUnicode(cn));// 输出\u9e92\u5f    阅读全文 
                posted @ 2019-01-22 16:09
Lovemeifyoudare
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public class DXX {	public static void main(String []args){ char dx='A',xx='a'; for(int i=0;i<26;i++,dx++,xx++){ System.out.println("大写字母:"+dx+",小写字母:"    阅读全文 
                posted @ 2019-01-22 16:05
Lovemeifyoudare
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public class Employee {//员工类	private String name;	private int number;	private double salary;	private double bonus;	private Employee leader;	private De    阅读全文 
                posted @ 2019-01-22 15:50
Lovemeifyoudare
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package objectUp; class BaseClass { public BaseClass() { String book = "caa"; this.test();	} public void base() { System.out.println("我是父类的方法");	} pub    阅读全文 
                posted @ 2019-01-22 15:24
Lovemeifyoudare
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package objectUp; public class recursion {	/* * 已知一个数列:(f0) =1,(f1)=4, f(n +2)=2*f(n+1) +f(n),其中n是大于0的整数,求 f(n)的值。 * * 倒过来:f(20)=1,f(21)=4,f(n +2)=2*f    阅读全文 
                posted @ 2019-01-22 14:53
Lovemeifyoudare
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package objectUp; public class InstanceofTest {	/* * instanceof(译:实例 判断对象类型 运算符)运算符前一个操作数 通常是一个引用类型变量 后一个操作数通常是类或接口(接口是一个特殊的类) * 用于判断前面的对象是否是后面的类 或者是他    阅读全文 
                posted @ 2019-01-22 14:46
Lovemeifyoudare
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