java第四周随堂

1

package doom2;

import java.util.Scanner;

public class thefourweekwork1 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner input =new Scanner(System.in);
		
		System.out.print("请输入一个数字:");
		
		int i = input.nextInt();
		
		if(i==1){
			System.out.println("x="+i);
		}else if(i==5){
			System.out.println("x="+i);
		}else if(i==10){
			System.out.println("x="+i);
		}else{
			System.out.println("x=none");
		}
	}

}

　　

package doom2;

import java.util.Scanner;

public class thefourweekwork2{

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner input =new Scanner(System.in);
		
		System.out.print("请输入一个数字:");
		
		int i = input.nextInt();
		
		switch(i){
			case 1:
				System.out.println("x="+i);
				break;
			case 5:
				System.out.println("x="+i);
				break;
			case 10:
				System.out.println("x="+i);
				break;
			default:
				System.out.println("x=none");
				break;
		}

	}

}

　　

package doom2;

import java.util.Scanner;

public class thefourweekwork3 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner input =new Scanner(System.in);
		
		System.out.print("请输入一个数字:");
		
		int i = input.nextInt();
		if(i%5==0&&i%6==0){
			System.out.println(i+"可以被5和6同时整除");
		}else if(i%5==0&&i%6!=0){
			System.out.println(i+"只能被5整除");
		}else if(i%6==0&&i%5!=0){
			System.out.println(i+"只能被6整除");
		}else if(i%6!=0&&i%5!=0){
			System.out.println(i+"不能被5和6整除");
		}

	}

}

　　

package doom2;

import java.util.Scanner;

public class thefourweekwork4 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner input =new Scanner(System.in);
		
		System.out.print("请输入一个0-100之间的分数:");
		
		int i = input.nextInt();
		if(i>100){
			System.out.println("输入的值无效");
		}else if(i>=90){
			System.out.println("A级别");
		}else if(i>=80){
			System.out.println("B级别");
		}else if(i>=70){
			System.out.println("C级别");
		}else if(i>=60){
			System.out.println("D级别");
		}else if(i<60){
			System.out.println("E级别");
		}

	}

}

　　

package doom2;

import java.util.Scanner;

public class thefourweekwork5 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner input = new Scanner(System.in);
		System.out.print("请输入第一个数X:");
		int a = input.nextInt();
		System.out.println();
		System.out.print("请输入第二个数Y:");
		int b = input.nextInt();
		System.out.println();
		System.out.print("请输入第三个数Z:");
		int c = input.nextInt();
		if(a>b&&b>c){
			System.out.println(c+"<"+b+"<"+a);
		}else if(a>c&&c>b){
			System.out.println(b+"<"+c+"<"+a);
		}else if(b>a&&a>c){
			System.out.println(c+"<"+a+"<"+b);
		}else if(b>c&&c>a){
			System.out.println(a+"<"+c+"<"+b);
		}else if(c>a&&a>b){
			System.out.println(b+"<"+a+"<"+c);
		}else if(c>b&&b>a){
			System.out.println(a+"<"+b+"<"+c);
		}

	}

}