Binary to Decimal

Binary to decimal

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Given a binary number as an integer N, convert it into decimal and print.

Input format :

An integer N

Output format :

Corresponding Decimal number (as integer)

Sample Input 1 :

1100

Sample Output 1 :

12

Sample Input 2 :

111

Sample Output 2 :

7

import java.util.Scanner;
public class Main
{


 public static void main(String[] args)

 {
       
 Scanner in = new Scanner( System.in );



  int  binarynum =in.nextInt();
 
  int binary=binarynum;
       
int decimal = 0;
int power = 0;

while(true)

{

 if(binary == 0)
 {

        break;

 }

 else
 {

   int tmp = binary%10;
   decimal += tmp*Math.pow(2, power);
   binary = binary/10;
   power++;

 }

}
        System.out.println(decimal);
}

}