随笔分类 - Java学习
摘要：public class StreamDemo { public static void main(String[] args) { //创建一个集合 ArrayList<String> list = new ArrayList<>(); list.add("赵敏"); list.add("张无忌"
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摘要：不使用Stream流完成上述操作代码： public class StreamDemo { public static void main(String[] args) { //创建一个集合，存储多个字符串元素 ArrayList<String> list = new ArrayList<>();
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摘要：public class FunctionTest { public static void main(String[] args) { String s = "林青霞,30"; convert(s, s1 -> s1.split(",")[1], s1 -> Integer.parseInt(s1
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摘要：public class FunctionDemo { public static void main(String[] args) { convert("100", s -> Integer.parseInt(s)); convert(100, i -> String.valueOf(i + 56
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摘要：public class PredicateTest { public static void main(String[] args) { String[] strArray = {"林青霞,30","柳岩,34","张曼玉,35","貂蝉,31","王祖贤,33"}; ArrayList<Stri
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摘要：public class PredicateDemo { public static void main(String[] args) { boolean b1 = checkString("hello", s -> s.length() > 8); System.out.println(b1);
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摘要：public class ConsumerTest { public static void main(String[] args) { String[] strArray = {"林青霞,30", "张曼玉,35", "王祖贤,40"}; printInfo(strArray, (String s
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摘要：public class ConsumerDemo { public static void main(String[] args) { operatorString("旭旭宝宝",s -> System.out.println(s)); operatorString("旭旭宝宝",s -> Sys
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摘要：public class SupplierTest { public static void main(String[] args) { //定义数组 int[] a = {10,20,33,12,99}; //调用方法获取最大值 int MaxValue = getMax(()->{ int Ma
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摘要：public class SupplierDemo { public static void main(String[] args) { String s = getString(()->"函数式接口"); System.out.println(s); Integer i = getInteger(
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摘要：public class ComparatorDemo { public static void main(String[] args) { ArrayList<String> array = new ArrayList<>(); array.add("a"); array.add("ccccc")
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摘要：public class RunnableDemo { public static void main(String[] args) { //使用匿名类调用方法 startThread(new Runnable() { @Override public void run() { System.out
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摘要：定义接口 public interface StudentBuilder { Student build(String name, int age); } View Code 测试类 public class StudentDemo { public static void main(String[
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摘要：接口定义 public interface MyString { String mySubString(String s,int x,int y); } View Code 测试类 public class MyStringDemo { public static void main(String[
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摘要：接口定义 public interface Print { void printUpperCase(String s); } View Code PrintString类 public class PrintString { public void printUpper(String s){ Str
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摘要：接口定义 public interface Converter { int convert(String s); } View Code 测试类定义 public class ConverterDemo { public static void main(String[] args) { //使用L
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摘要：接口定义 public interface Printable { void printString(String s); } 测试类 public class PrintableDemo { public static void main(String[] args) { //使用Lambda表达
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摘要：接口定义 public interface Addable { int add(int x , int y); } public interface Flyable { void fly(String s); } View Code 测试类定义 public class LambdaDemo { p
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摘要：接口定义 public interface Addable { int add(int x, int y); } View Code 测试类定义 public class AddableDemo { public static void main(String[] args) { //匿名内部类 /
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摘要：接口定义 public interface Flyable { void fly(String s); } View Code 测试类 public class FlyableDemo { public static void main(String[] args) { //使用匿名内部类 useF
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