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();
   }
}

WAP to check palendron

/*WAP to check palendron*/

import java.lang.*;
class palindrome
{
 int num,i,rem,rev=0,status;
 palindrome(int a)
  {
   num=a;
  }
 void calculate()
    {
 
     i=num;
     while(i>0)
        {
         rem=i%10;
         rev=rev*10+rem;
         i=i/10;
        } 
     if(num==rev)
     status=1;

     else 
     status=0;

    }

 void display()
   {
    if(status==1)
    System.out.println("palindrome"+rev);
    else if(status==0)
    System.out.println("Not palindrome"+rev);
   } 
}
class demo_palendron
{
 public static void main(String arg[])
   {
    palindrome p1=new palindrome(231);
    p1.calculate();
    p1.display();
   }
}

WAP to check no. is even/odd

/*WAP to check no. is even/odd*/

import java.lang.*;

class evenodd
   {
    int num,status;
    evenodd(int num1)
      {
       num=num1;
      }
    void calculate_evenodd()
      {
       if(num%2==0)
       status=1;
       else
       status=0;
      }
   void display()
     {
      if(status==1)
      System.out.println("no. is EVEN" + num);
      else
      System.out.println("no. is ODD" + num);
     }
   }


class demo_evenodd
   {
    public static void main(String arg[])
      {
       evenodd eo1=new evenodd(6);
       evenodd eo2=new evenodd(21);

       eo1.calculate_evenodd();
       eo1.display();

       eo2.calculate_evenodd();
       eo2.display();
      }
   }

WAP to display welcome

/*WAP to display welcome*/

import java.lang.*;
class name
   {
    public static void main(String arg[])
      {
       System.out.println("WELCOME");
      }
   }