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package com.ping;import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;public class TestMain {public static  <T extends Comparable<T>> boolean isEqualList(List<T> list1, List<T> list2){if(list1 == null && list2 == null) {return true;}if(list1 == null || list2 == null) {return false;}if(list1.size() != list2.size()) {return false;}list1 = new ArrayList<T>(list1);list2 = new ArrayList<T>(list2);Collections.sort(list1);Collections.sort(list2);return list1.equals(list2);}public static void main(String[] args) {List<Integer> list1 = Arrays.asList(1, 2, 3, 3, 4);List<Integer> list2 = Arrays.asList(3, 2, 1, 4, 3);List<Integer> list3 = Arrays.asList(1, 2, 3, 4);List<Integer> list4 = Arrays.asList(1, 2, 3, 4, 5);List<String> list5 = Arrays.asList("张三","李四", "王五", "赵六");List<String> list6 = Arrays.asList("张三","李四", "李四","王五");System.out.println(isEqualList(list1, list2)); // trueSystem.out.println(isEqualList(list1, list3)); // falseSystem.out.println(isEqualList(list1, list4)); // falseSystem.out.println(isEqualList(list5, list6)); // false}
}