java第五次作业

2021-04-07

1.public class test12 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

		int i=0;
		int sum=0;
		while(i<=100){
			if(i%3==0)
				sum+=i;
			i++;
		}
		
		System.out.println(sum);
	}

}
2.public class testy11 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
int i=0;
while(i<=9){
	if(i!=5)
		System.out.println(i);
		i++;
	
}

	}

}
3.public class test13 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
int s=1;
int n=1;
while(n<=5){
	s*=n;
	n++;
}
System.out.println(s);
	}
4.import java.util.Scanner;


public class test14 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner input=new Scanner(System.in);
		System.out.println("请输入一个数a");
		int a=input.nextInt();
		while(a<0||a>100){
		      
		    System.out.println("输入错误，重新输入");
		     a=input.nextInt();
	}

}
}
5.
public class test15 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		double i=1;
        double b=30000,sum=0;
        for(i=1;i<11;i++)
        {
            b=b*(1+0.06);
            sum+=b;
             
             
        }
        System.out.println("10年后年薪"+b);
        System.out.println("10年后总年薪"+sum);
	}

}
作业
1.public class test16 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		int i=100;


		while(i<1000){
		    int bai=i/100;
		    int shi=i/10%10;
		    int ge=i%10;
		    if(ge*ge*ge+shi*shi*shi+bai*bai*bai==i)
		    System.out.println(i);    
		    i++;
	}

}
2.
import java.util.Scanner;


public class test17 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner input=new Scanner(System.in);
        System.out.println("请输入年份");
        int year=input.nextInt();
        System.out.println("请输入月份");
        int month=input.nextInt();
        System.out.println("请输入日");
        int day=input.nextInt();
        int sum=0;
        for(int i=1;i<month;i++){
            switch(i){
            case 4:
            case 6:
            case 9:
            case 11:
                sum=sum+30;
                break;
            case 2:
                if(year%4==0&&year%100!=0||year%400==0)
                    sum=sum+29;
                else
                    sum=sum+28;
                break;
            default:sum=sum+30;
            break;
            } 
        }
        sum=sum+day;
        System.out.println(year+"年中的第"+sum+"天");
    }
3.import java.util.Scanner;


public class test18 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner input=new Scanner(System.in);
        System.out.println("请输入一个四位数");
        int a=input.nextInt();
        while(a<1000||a>9999){
        System.out.println("输入不合法请重新输入");
        a=input.nextInt();
        }
        int b=a%10;
        int c=a%100/10;
        int d=a%1000/100;
        int e=a/1000;
        System.out.println("反转后的数为"+b+c+d+e);
	}

}