jhvghvgk

;nkjn

,nkjhj

Write a program to input a number and check whether it is Happy Number or not? (28=2^2+8^2=4+64=68,6^2+8^2=36+64=100,1^2+0^2+0^2=1+0+0=1)

83)  Write a program to input a number and check whether it is Happy Number or not? (28=2²+8²=4+64=68,6²+8²=36+64=100,1²+0²+0²=1+0+0=1) 

import java.util.*;

public class Happy_num

{

    public static void main(String args[ ])

   {

           Scanner sc = new Scanner (System.in);

           System.out.println("Enter a number");

           int a = sc.nextInt();

           int s = 10;

           while(s>9)

           {

               s=0;

               while(a>0)

               {

                   int d = a%10;

                   int x = (int)Math.pow(d,2);

                   a = a/10;

                   s=s+x;

               }

               a=s;

           }

           if(s==1)

           {

               System.out.println("Entered number is a HAPPY Number");

           }

           else

           {

               System.out.println("Entered number is not a HAPPY Number");

           }

    }

}

Output : 

happy-number

 Write a program to input a number and check whether it is Magic Number or not? ( 64 = 6+4 = 10 = 1+0 = 1)

Write a program to input a number and check whether it is Magic Number or not? ( 64 = 6+4 = 10 = 1+0 = 1)

82)  Write a program to input a number and check whether it is Magic Number or not? ( 64 = 6+4 = 10 = 1+0 = 1) 

import java.util.*;
public class Magic_num
{
   public static void main(String args[ ])
   {
           Scanner sc = new Scanner (System.in);
           System.out.println("Enter a number");
           int a = sc.nextInt();
           int s = 10;
           while(s>9)
           {
               s=0;
               while(a>0)
               {
                   int d = a%10;
                   a = a/10;
                   s=s+d;
               }
               a=s;
           }
           if(s==1)
           {
               System.out.println("Entered number is a MAGIC Number");
           }
           else
           {
               System.out.println("Entered number is not a MAGIC Number");
           }
    }

}

Output : 

magic-number

           Write a program to input a number and check whether it is Amicable Pair Number or not?(220,284|| sum of factors of 220 is equal to 284 and sum of factors of 284 is equal to 220 then it is amicable pair Number)

Write a program to input a number and check whether it is Amicable Pair Number or not?(220,284|| sum of factors of 220 is equal to 284 and sum of factors of 284 is equal to 220 then it is amicable pair Number)

81)  Write a program to input a number and check whether it is Amicable Pair Number or not?(220,284|| sum of factors of 220 is equal to 284 and sum of factors of 284 is equal to 220 then it is amicable pair Number) 

import java.util.*;

public class Amicable_pair_num

{

    public static void main(String args[ ])

   {

           Scanner sc = new Scanner (System.in);

           System.out.println("Enter two numbers");

           int a = sc.nextInt();

           int b = sc.nextInt();

           int m = 0;

           int n = 0;

           for(int i = 1;i<a;i++)

           {

               if(a%i==0)

               {

                   m=m+i;

               }

           }

           for(int i = 1;i<b;i++)

           {

               if(b%i==0)

               {

                   n=n+i;

               }

           }

           if(m==b&&n==a)

           {

               System.out.println("Entered number are AMICABLE PAIR Number ");

           }

           else

           {

               System.out.println("Entered number are not AMICABLE PAIR Number ");

           }

    }

} 

Output :

amicable-pair-number

 Write a program to input a number and Swap the first and last digit of this number?(2784===4782)

Write a program to input a number and Swap the first and last digit of this number?(2784===4782)

80)  Write a program to input a number and Swap the first and last digit of this number?(2784===4782)

import java.util.*;

public class Swap_first_last_digit

{

    public static void main(String args[ ])

   {

           Scanner sc = new Scanner (System.in);

           System.out.println("Enter a number");

           int a = sc.nextInt();

           int k = a;

           int c = 0;

           while(k>0)

           {

               k=k/10;

               c++;

           }

           int m = (int)Math.pow(10,c-1);

           int n = a%m;

           int t = a/m;

           int r = n%10;

           n=n/10;

           n=(n*10)+t;

           n=(r*m)+n;

           System.out.println("Number after SWAPING First and Last Digit = "+n);   

    }

}

Output : 

swaping-first-and-last-digit-of-a-number

       Write a program to input a number and check whether it is Adam Number or not?  (12² =144 , 21² = 441 = 144, 144=144)

Write a program to input a number and check whether it is Adam Number or not? (12^2 =144 , 21^2 = 441 = 144, 144=144 )

79)  Write a program to input a number and check whether it is Adam Number or not?  (12² =144 , 21² = 441 = 144, 144=144 )

import java.util.*;

public class Adam_num

{

    public static void main(String args[ ])

   {

           Scanner sc = new Scanner (System.in);

           System.out.println("Enter a number");

           int a = sc.nextInt();

           int p = a*a;

           int r = 0;

           while(a>0)

           {

               int d = a%10;

               r=(r*10)+d;

               a=a/10;

           }

           int p1 = r*r;

           r=0;

           while(p1>0)

           {

               int d = p1%10;

               r=(r*10)+d;

               p1=p1/10;

           }

           if(p==r)

           {

               System.out.println("Entered number is a ADAM Number");

           }

           else

           {

               System.out.println("Entered number is not a ADAM Number");

           }

   }

}

Output : 

adam-number

Write a program to input a number and check whether it is Disarium Number or not?  (135=1¹+3²+5³=1+9+125=135)

 

Write a program to input a number and check whether it is Disarium Number or not? (135=1^1+3^2+5^3=1+9+125=135)

78)  Write a program to input a number and check whether it is Disarium Number or not?  (135=1¹+3²+5³=1+9+125=135)

import java.util.*;

public class Disarium_num

{

    public static void main(String args[ ])

   {

           Scanner sc = new Scanner (System.in);

           System.out.println("Enter a number");

           int a = sc.nextInt();

           int k = a;

           int c = 0;

           while(k>0)

           {

               k=k/10;

               c++;

           }

           int r = 0;

           k=a;

           for(int i = c;i>=1;i--)

           {

               int d = k%10; 

               int x = (int)Math.pow(d,i);

               r=r+x;

               k=k/10;

           }

           if(r==a)

           {

               System.out.println("Entered number is a DISARIUM Number");

           }

           else

           {

               System.out.println("Entered number is not a DISARIUM Number");

           }

   }

}

Output : 

disarium-number

       Write a program to input a number and check whether it is Odious Number or not? (7…binary…111.no. of ones is 3 and it is odd.so it is odious no.)