if 选择结构

package struct;

import java.util.Scanner;

//if 单选择结构
public class IfDemon01 {
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        System.out.println("请输入内容");

        String str=scanner.nextLine();
        //equals:判断字符串是否相等 
        if(str.equals("hello")){
            System.out.println(str);
        }
        System.out.println("End");

        scanner.close();
    }
}