第五周上机作业

package set;

import java.util.Scanner;

public class SKS {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		   int a=100,b,c,d;
		   while(a<1000){
			   b=a%10;
			   c=a%100/10;
			   d=a/100;
			   if(b*b*b+c*c*c+d*d*d==a) {
				   System.out.println(a);
			   }
			   a++;
		   }
		   }
		   
		    
	}

　　

package set;

import java.util.Scanner;

public class SKSK {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
          Scanner input=new Scanner(System.in);
          int m =0;
          int y =0;
          int s =0;
          int a ;
          int d =0;
          System.out.println("请输入年");
          y=input.nextInt();
          System.out.println("请输入月");
          m=input.nextInt();
          System.out.println("请输入日");
          d=input.nextInt();
          switch(m) {
          case 1 :
        	  s=0;break;
          case 2:
        	  s=31;break;
          case 3 :
        	  s=59;break;
          case 4 :
        	  s=90;break;
          case 5 :
        	  s=120;break;
          case 6 :
        	  s=151;break;
          case 7 :
        	  s=181;break;
          case 8 :
        	  s=212;break;
          case 9 :
        	  s=243;break;
          case 10 :
        	  s=273;break;
          case 11 :
        	  s=304;break;
          case 12 :
        	  s=334;break;
        	  default:
         System.out.println("请输入年，月，日!"); break;}
           
            s=s+m;
        	 if(m>=0&&m<=12&&d>=1&&d<=31) {
        		 if(y%400==0||y%4==0&&y%100!=0) {
        			 a=1;
        		 }else {
        			 a=0;
        		 }
        		if(a==1&&m>2) {
        			s++;
        			System.out.println(y+"年"+m+"月"+d+"号是一年的低"+s+"天");
        		}
        		else { System.out.println(y+"年"+m+"月"+d+"号是一年的低"+s+"天");
        		}
        	 }      
          }      
	}

　　

package set;

import java.util.Scanner;

public class SKSK {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
          Scanner input=new Scanner(System.in);
          for(int a = 1;a <= 6;a++)
          {
              for(int b = 1;b <= a;b++)
                  System.out.printf("%d ",b);
              System.out.print("
");
          }
          System.out.print("
");
           
          for(int a = 6;a >= 1;a--)
          {
              for(int b = 1;b <= b;b++)
                  System.out.printf("%d ",b);
              System.out.print("
");
          }
          System.out.print("
");
           
          for(int a = 1;a <= 6;a++)
          {  
              for(int b = 1;b <= 2 * (6 - a);b++)
                  System.out.print(" ");
               
              for(int b = a;b >= 1;b--)
                  System.out.printf("%d ",b);
              System.out.print("
");
          }
          System.out.print("
");
           
          for(int a = 6;a >= 1;a--)
          {
              for(int b = 1;b <= 2 *(6-a);b++)
                  System.out.print(" ");
              for(int b = 1;b <= a;b++)
                  System.out.printf("%d ",b);
              System.out.print("
");
          }
      }

　　

package set;

import java.util.Scanner;

public class SKSK {

	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();
         int b;
        
         if(a>999&&a<=9999) {
        	 b=a/1000+a/100%10*10+a/10%10*100+a%10*1000;
        	 System.out.println(b);
         }else {
        	 System.out.println("请输入错误");
         }
      

}
	}