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by Dinesh Thakur

Algorithm for Check Number is Binary or Not:

step 1: Set r=0,c=0

step 2: Read num

step 3: Set b=num

step 4: Repeat through step-7 while num greater than 0

step 5: If (num mod 10)equals to 0 OR equals to 1 then c=c+1

step 6: r=r+ 1

step 7: num=num/ 1 0

step 8: If c equals to r then Print it is a binary number

          Else print it is not a binary number

step 9:Exit

Here is the Java Example for Check Number is Binary or Not:

import java.util.Scanner;

public class CheckNumberisBinary
{
            public static void main(String args[])
        {
                   int r=0,c=0,num,b;
              Scanner sl=new Scanner(System.in);
              System.out.println("Enter a number");
              num=sl.nextInt();
              b= num;
              while(num>0)
                   {
                      if((num %10==0)|| (num%10==1))
                         c++;
                         r++;
                         num=num/10;
                   }
                      if(c==r)
               System.out.println(b+" is a Binary Number.");
               else
               System.out.println(b+" is not a Binary Number");
           }
}

Check Number is Binary or Not