binary to decimal conversion code in java

 binary to decimal conversion code in java

Code:

import java.util.*;

import java.lang.*;

import java.io.*;

class Test{

public static void main(String[] args){

Scanner scn = new Scanner(System.in);

System.out.println("Enter the Binary Number : ");

int bin = scn.nextInt();

deci(bin);

}

public static void deci(int bin){

int res = 0;

int i = 0;

while(bin!=0){

int r = bin%10;

res = res + (r*(int)Math.pow(2,i));

i++;

bin = bin/10;

}

System.out.println(res);

}

}

ex:

input : 1010

o/p:  10

input : 1000

o/p: 8

i/p: 10101

o/p: 21