ylm-sigmund

/** * @author ylm-sigmund * @since 2021/1/16 12:22 */ public class DuplicateRemovalTest { /** * 基本数据类型，普通方法去重 */ @Test public void basicDataTypeForCommon() { final List<String> stringList = Stream.of("a", "b", "c", "

pom文件 <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven

测试环境 <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.3.1.RELEASE</version> <relativePath/> <!-- lookup parent from reposi

import java.time.DayOfWeek; import java.time.Duration; import java.time.LocalDate; import java.time.LocalDateTime; import java.time.LocalTime; import java.time.Period; import java.time.format.DateTimeFormatter; import java.time.temporal.TemporalAdjusters;

public class OptionalTest { @Test void ofNullable() { // return new Optional<>(value); Optional<Integer> integer = Optional.of(1); // return value == null ? empty() : of(value); // empty{return (Optional