04 2023 档案
摘要:package jsh.mg.msg.service.msg.test;import java.util.Arrays;import static java.util.Arrays.binarySearch;/** * * 几种常用的Java 算法 */public class TestClass
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摘要:Map<Integer, Person> collect = list.stream().collect(Collectors.toMap(Person::getId, Function.identity())); Map<Integer, Person> collect1 = list.strea
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