String k = (a > 0 && a < 8) ? a < 6 ? "今天是工作日" :"今天是休息日" : "输入错误";
        System.out.println(k);

public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		while (true) {
			System.out.println("今天星期几");
			int num = s.nextInt();
			if (num < 1 || num > 7) {
				System.out.println("输入错误");
			} else {
				String days = num <= 5 ? "今天是工作日" : "今天是周末";
				System.out.println(days);
			}
		}
	}

import java.util.Scanner;

public class TernaryOperator {
    public static void main(String[] args) {
        System.out.println("今天是星期几?");
        Scanner s = new Scanner(System.in);
        int a = s.nextInt();
        String k = a<6? "今天是工作日":"今天是周末";
        System.out.println(k);
    }
}

public static void main(String[] args){
		Scanner s = new Scanner(System.in);
		System.out.println("请输入今天是星期几：（阿拉伯数字）");
		int a = s.nextInt();
		System.out.println("今天是星期"+ (a)+"；" +"今天属于"+((a < 6)?"工作日":"周末"));
			}

import java.util.Scanner;
 
public class Hello {
	public static void main(String[] args) {
		 Scanner s = new Scanner(System.in);
		 System.out.println("今天是周几？");
        int i = s.nextInt();
 
        String k =  i < 6  ?  "今天是工作日" : "今天是周末";
        String j =  (i<1 |i>7) ? "输入错误" : k;
 
       
        System.out.println(j);
 
    }
    	        
    	    
}

public class shujuleixing2 {
    public static void main(String[] args) {
//计算两个参数的和
        Scanner  sc = new Scanner(System.in);
        int b = sc.nextInt();

        System.out.println( b <5 ? "工作日" : "周末");
    }
}

import java.util.Scanner;

public class Test14 {
    public static void main(String[] args) {
        System.out.println("今天是周几：");
        Scanner s = new Scanner(System.in);
        int a = s.nextInt();
        String k =  a < 6  ?  "今天是工作日" : "今天是周末";
        String j =  (a<1 |a>7) ? "输入错误" : k;
        System.out.println(j);
    }
}

public class J5 {
    //主函数
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        int day;
        System.out.println("今天是周几");
        day= scanner.nextInt();
        System.out.println(day > 7 ? "你输入错误" : day < 6 ? "工作日" : "周末");
    }
}

public class J5 {
    //主函数
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        int day;
        System.out.println("今天是周几");
        day= scanner.nextInt();
        System.out.println(day > 7 ? "你输入错误" : day < 6 ? "工作日" : "周末");
    }
}

//通过Scanner输入一个1-7之间的整数，使用三元操作符判断是工作日还是周末？

import java.util.Scanner;

public class Hello{
    public static void main(String[] args){
        Scanner s = new Scanner(System.in);
        System.out.println("今天是周几？");
        int day = s.nextInt();
        String status1 = day >= 6 ? "周末" : "工作日";
        String status2 = (day < 1 || day > 7) ? "输入错误" : status1;
        System.out.println(status2);

    }
}

package calculate;

import java.util.Scanner;

public class Workday {
        public static void main(String[] args) {
        	Scanner s = new Scanner(System.in);
        	System.out.println("今天是周几?");
        	int a = s.nextInt();
        	if(a<1|a>7)
        	{
        	System.out.println("输入错误请重新输入:");
        	int b = s.nextInt();
        	a = b;
            }
        	if(a<=5?true:false==true) {
        		System.out.println("今天是工作日");
        	}
        	else {
        		System.out.println("今天是休息日");
        	}
   }
}

import java.util.Scanner;

public class HelloWorld {
    public static void main(String[] args) {
    	Scanner sc = new Scanner(System.in);
    	int a = sc.nextInt();
    	String j = a<=5 && a>=1?"今天是工作日":"今天不是工作日";
    	System.out.println(j);		
    }
}

import java.util.Scanner;
public class How2j_Tow {
    public static void main(String[] args) {
        Scanner day = new Scanner(System.in);
        System.out.print("今天星期：");
        int d = day.nextInt();
        String d1 =d ==6||d==7?"今天周末":"今天工作日";
        String d2 =d>7||d<1?"你输错了":d1;
        System.out.println(d2);
    }
}

import java.util.Scanner;

public class HelloWorld {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("今天是周几:");
        int i = sc.nextInt();
        String i1 = i == 6 ||  i==7 ? "今天是周末" : "今天是工作日";
        String i2 =i >7 || i<1?"输入有误":i1;
        System.out.println(i2);
    }
}

package cn.xxxy.helloworld.practice;

import java.util.Scanner;

public class test02 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		Scanner scanner = new Scanner(System.in);
		System.out.println("今天是周几？");
		int a = scanner.nextInt();
		if (a>=6) {
			System.out.println("今天是休息日");
		}else {
			String today= a<6?"今天是工作日":"今天是休息日";
			System.out.println(today);
		}
		
	}

}

import java.util.Scanner;
public class xm {
    public static void main(String[] args){
        Scanner s = new Scanner(System.in);
        System.out.println("今天是星期几？");
        int a = s.nextInt();
        String c = a < 6 ? "工作日":"周末";
        System.out.println("今天是"+ c);
    }
}

import java.util.Scanner;
public class shujuleixing2 {
    public static void main(String[] args) {
//计算两个参数的和
        Scanner  sc = new Scanner(System.in);
        int b = sc.nextInt();
        String c = b <5 ? "工作日" : "周末";
        System.out.println(c);
    }
}

package test04;

import java.util.Scanner;

public class Test03 {

	public static void main(String[] args) {
		Scanner scanner =new Scanner(System.in);
		System.out.println("今天周几？");
		int i=scanner.nextInt();
		if (i>1||i<7) {
			String k=i>5?"周末":"工作日";
			System.out.println("今天是"+k);
		}else {
			System.out.println("无效数字");
		}
	}
}

import java.util.Scanner;

public class Test02 {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.println("输入一个1-7整数：");
        int day = input.nextInt();
        if (day < 1 || day > 7) {
            System.out.println("您的输入有误！");
        } else {
            System.out.println(day <= 5 ? "工作日" : "周末");
        }
    }
}

import java.util.Scanner;

public class Ceshi {
    public static void main(String[] args) {
        Scanner sunday = new Scanner(System.in);
        System.out.println("qing shu ru zhou ji");
        int k = sunday.nextInt();
        System.out.println((k<=5)?"jin tian shi gong zuo ri":"jin tian shi xiu xi ri");
        }
    }

public static void main(String args[]) {
        Scanner s = new Scanner(System.in);
        System.out.println("今天星期几？");
        int a = s.nextInt();
      String q = "今天是工作日。" ;
      String w = "今天不是工作日。";
      String as = (a>1&&a<6)? q:w;
        System.out.println(as);
    }

public static void main(String[] args) {
		// TODO Auto-generated method stub
        IsWeekend();
	}

	public static void IsWeekend() {
		Scanner sc = new Scanner(System.in);
		System.out.println("Please scan 1 to 7");
		int input = sc.nextInt();
		if(1 <= input && 7 >= input) {
			String day = input >=6 ? "Weekend" :"WorkingDay";
			System.out.println(day);
		}else{
			System.out.println("Scan worng, please reScan");
			IsWeekend();
		}
	}

public class Student {
    String day;

    public void weekDays() {

        while (true) {//循环输入
            Scanner scanner = new Scanner(System.in);
            System.out.println("请输入一个1-7之间的整数:");
            try {//判断是否输入的是数字，如果输入的不是数字直接抛出异常再次重新输入
                int sc = scanner.nextInt();
                if (sc == 0) {//设置终止无限循环
                    System.out.println("game over");
                    break;
                } else {
                    day = 5 > sc ? "工作日" : "周末";
                    System.out.println(day);
                }
            } catch (InputMismatchException e) {
                System.out.println("您输入的不是数字，请重新输入");
            }
        }

    }

    public static void main(String[] args) {

        Student st = new Student();
        st.weekDays();

    }
}

----判断是否为工作日-----
请输入今天是星期几：
-1
没有这个星期哦

package path;

import java.util.Scanner;

public class Text_ {
	public static void main(String[] args) {
		System.out.println("请输入一个数字：");
		Scanner day = new Scanner(System.in);
		int days = day.nextInt();
		if(days>7) {
			System.out.println("输入了一个错误的值");
		}
		else {
		System.out.println(days > 5 ? "今天是休息日可以放松了": "今天是工作日必须得认真工作了"); 
	}//三元运算符在打印输出的时候好一点

}
}

package example;
import java.util.Scanner;
public class 三元操作符if {
	public static void main(String[] args) {
	System.out.println("今天是星期几？");
	Scanner sc=new Scanner(System.in);
	int i=4;
	int j=7;
	int k=i<j?4:3;
	//相当于
	if(i<j) {
		k=4;
	}else {
		k=3;
	}
	System.out.println(k);
	if(k<=5) {
		System.out.println("今天是工作日");
	}else {
		System.out.println("今天不是工作日");
	}
	}
}