package com.xu.struct;

import java.util.Scanner;

public class IfDemo01 {
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        System.out.println("请输入内容：");
        String s=scanner.nextLine();
        //equals:判断字符串是否相等；他和==是有区别的，就是少用==来判断字符串
        if(s.equals("Hello")){
            System.out.println(s);
        }
        System.out.println("end");
        scanner.close();
    }
}

"D:\Program Files\Java\jdk1.8.0_281\bin\java.exe" "-javaagent:D:\Program Files\JetBrains\IntelliJ IDEA 2021.1\lib\idea_rt.jar=63444:D:\Program Files\JetBrains\IntelliJ IDEA 2021.1\bin" -Dfile.encoding=UTF-8 -classpath "D:\Program Files\Java\jdk1.8.0_281\jre\lib\charsets.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\deploy.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\access-bridge-64.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\cldrdata.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\dnsns.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\jaccess.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\jfxrt.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\localedata.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\nashorn.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\sunec.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\sunjce_provider.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\sunmscapi.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\sunpkcs11.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\ext\zipfs.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\javaws.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\jce.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\jfr.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\jfxswt.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\jsse.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\management-agent.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\plugin.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\resources.jar;D:\Program Files\Java\jdk1.8.0_281\jre\lib\rt.jar;C:\Users\徐文昭\Desktop\JavaSE\out\production\基础语法" com.xu.struct.IfDemo01
请输入内容：
Hello
Hello
end

Process finished with exit code 0