Java SE(26) operator-ternary operator

Conditional operator

Also known as ternary operator/ternary operator

Format: a?b:c

        Where a is a boolean expression, the return result is either true or false, and the final expression result is determined by the result of a:
               if the result of a is true , then the final result of the expression is b .
               If the result of a is false , then the final result of the expression is c .

• Can replace if...else... statement

public class TestOpe13{
	public static void main(String[] args){
		int num=(5>7)?6:9;
		System.out.println(num);
	}
}

  Calculation result:

Exercise:

import java.util.*;
public class TestOpe14{
	public static void main(String[] args){
		//实现功能：男孩女孩选择晚饭吃什么，如果意见一致听男生的，如果意见不一致，听女生的。
		System.out.println("请选择今晚吃什么：1.火锅 2.烧烤 3.麻辣烫");
		Scanner sc=new Scanner(System.in);
		//男孩选择
		System.out.println("请男孩选择：");
		int boyChoice=sc.nextInt();
		//女孩选择
		System.out.println("请女孩选择：");
		int girlChoice=sc.nextInt();
		//判断
		System.out.println(boyChoice==girlChoice?"听男孩的":"听女孩的");
	}
}

  operation result: