2021-3-21深入学习java的第三个星期（If语句）

左手的ㄟ右手 2022-11-12 01:45 74阅读 0赞

/* * Author:Shao430yu; * Time:2021-3-19-20:51 * Java第三章课后作业 * */
    package cn.jc.output;
    
    import java.util.Scanner;
    public class Threechapterwork { 
    	public static void main(String[] args) { 
    		Scanner input= new Scanner(System.in);
    	//课外作业 1.根据题目要求完成编码
    		System.out.println("请输入年龄：");
    		int age = input.nextInt();
    		System.out.println("请输入性别：");
    		String sex = input.next();
    		if(age>=7) { 
    		System.out.println("能抬动桌子");
    		}else if(age>=5 && sex.equals("男")) { 
    			System.out.println("能抬动桌子");
    		}else { 
    			System.out.println("不能抬动桌子");
    		}
    System.out.println("\n");
    	
    	//课外作业 2.判断用户折扣
    		System.out.println("请输入会员积分：");
    		int integral = input.nextInt();
    		if(integral<2000) { 
    			System.out.println("该会员享受的折扣是：0.9");
    		}else if(integral>=2000&& integral<4000) { 
    		System.out.println("该会员享受的折扣是：0.8");
    		}else if(integral>=4000 && integral<8000) { 
    			System.out.println("该会员享受的折扣是：0.7");
    		}else if(integral>=8000) { 
    			System.out.println("该会员享受的折扣是：0.6");
    		}
    System.out.println("\n");
    	
    		
    		//课外作业 3.计算机票价格
    		int ticket = 5000;
    		System.out.println("请输入您出行的月份：1~12");
    		int month = input.nextInt();
    		System.out.println("请问您选择头等舱还是经济舱？头等舱请输入1，经济舱请输入2");
    		int grade = input.nextInt();
    		System.out.println("您的机票价格为：");
    		int money;
    		if (month>=4 && month<=10 && grade == 1) { 
    			System.out.println(ticket*0.9);
    		}else if(month>=4 && month<=10 && grade == 2) { 
    			System.out.println(ticket*0.8);
    		}else if(grade == 1) { 
    			System.out.println(ticket*0.5);
    		}else if(grade == 2) { 
    			System.out.println(ticket*0.4);
    		}
    System.out.println("\n");
    		
    		
    		
    		//课外作业 4.switch语句练习
    		System.out.println("请输入星期几：");
    		int week = input.nextInt();
    		switch (week){ 
    			case 1:
    				System.out.println("学习编程");
    				break;
    			case 2:
    				System.out.println("学习英语");
    				break;
    			case 3:
    				System.out.println("学习编程");
    				break;
    			case 4:
    				System.out.println("学习英语");
    				break;
    			case 5:
    				System.out.println("学习编程");
    				break;
    			case 6:
    				System.out.println("学习英语");
    				break;	
    			case 7:
    				System.out.println("今日休息");
    				break;
    			default:
    				System.out.println("输入错误，请重新输入");
    				break;
    		}
    	}
    }