WAP to check no. is prime/not

/*WAP to check no. is prime/not*/

import java.lang.*;

class prime
   {
    int num,count;
    prime(int num1)
      {
       num=num1;
       count=0;
      }
    void calculate_prime()
      {
       for(int i=1;i        {
         if(num%i==0)
         count++;
         if(count>2)
         break;
        }
      }
   void display()
     {
      if(count>2)
      System.out.println("not prime " + num);
      else
      System.out.println("prime " + num);
     }
   }


class demo_prime
   {
    public static void main(String arg[])
      {
       prime p1=new prime(5);
       prime p2=new prime(21);

       p1.calculate_prime();
       p1.display();

       p2.calculate_prime();
       p2.display();
      }
   }

wap to calculate factorial

/*wap to calculate factorial*/

import java.lang.*;
class factorial
{
 int num;
 factorial(int a)
    {
     num=a;
    }
 int fact(int m)
   {
    if(m==0)
    return(1);
    else
    return(m*fact(m-1));
   }
 void display()
    {
     int f;
     f=fact(num);
     System.out.println("factorial is="+f);
    }
}
class demo_factorial
{
 public static void main(String arg[])
   {
    factorial f1=new factorial(3);
    f1.display();
   }
}

Run Commands SHORTCUT KEYS for XP,Vista,Windows7

Run Commands SHORTCUT KEYS for XP,Vista,Windows7

 

1. compmgmt.msc - Computer management
2. devmgmt.msc - Device manager
3. diskmgmt.msc - Disk management
4. dfrg.msc - Disk defrag
5. eventvwr.msc - Event viewer
6. fsmgmt.msc - Shared folders
7. gpedit.msc - Group policies
8. lusrmgr.msc - Local users and groups
9. perfmon.msc - Performance monitor
10. rsop.msc - Resultant set of policies
11. secpol.msc - Local security settings
12. services.msc - Various Services
13. msconfig - System Configuration Utility
14. regedit - Registry Editor
15. msinfo32 - System Information
16. sysedit - System Edit
17. win.ini - windows loading information(also system.ini)
18. winver  -  Shows current version of windows
19. mailto:  - Opens default email client
20. command  - Opens command prompt
21. appwiz.cpl - Add/Remove Programs control
22. timedate.cpl - Date/Time Properties control
23. desk.cpl - Display Properties control
24. findfast.cpl - FindFast control
25. fonts - Fonts Folder control
26. inetcpl.cpl - Internet Properties control
27. main.cpl - Mouse Properties control
28. main.cpl keyboard - Keyboard Properties control
29. mmsys.cpl - Multimedia Properties control
30. netcpl.cpl - Network Properties control
31. password.cpl - Password Properties control
32. printers - Printers Folder control
33. mmsys.cpl sounds - Sound Properties control
34. sysdm.cpl - System Properties control

WAP to check no. is armstrong/not

/*WAP to check no. is armstrong/not*/

import java.lang.*;
class arms
{
 int num,i,rem,sum=0,status,b;
 arms(int a)
  {
   num=a;
  }
 void calculate()
    {
     i=num;
     while(i>0)
        {
         rem=i%10;
         b=rem*rem*rem;
         sum=sum+b;
         i=i/10;
         }
     if(sum==num)
     status=1;
     else
     status=0;
    }   
 void display()
   {
    if(status==1)
    System.out.println("ARMSTRONG"+sum);
    else if(status==0)
    System.out.println("not Armstrong"+sum);
   }
}
class demo_arms
{
 public static void main(String arg[])
   {
    arms a1=new arms(153);
    a1.calculate();
    a1.display();
   }
}