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LambdaDemo.java
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33 lines (28 loc) · 905 Bytes
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/**
* @program JavaBooks
* @description: Lambda表达式
* @author: mf
* @create: 2020/01/23 16:20
*/
package com.java8;
import java.util.*;
public class LambdaDemo {
public static void main(String[] args) {
// 老版本的排序
List<String> names = Arrays.asList("peter", "anna", "mike", "xenia");
System.out.println(names);
// Collections.sort(names, new Comparator<String>() {
// @Override
// public int compare(String a, String b) {
// return b.compareTo(a);
// }
// });
// 新版本 lambda表达式：
// Collections.sort(names, (String a, String b) -> {
// return b.compareTo(a);
// });
// Collections.sort(names, (String a, String b) -> b.compareTo(a));
names.sort((String a, String b) -> b.compareTo(a));
System.out.println(names);
}
}