Binary to Decimal conversion

Write a Java program to convert a binary number to decimal number.

import java.util.Scanner;
class BinaryToDecimal
    public static void main(String args[])
        Scanner in = new Scanner(;
        System.out.println("Enter a binary number");
        int num = in.nextInt();
        int d = 0;
        int t = num;
        int i=0;
            int r = t%10;
            t = t/10;
            d = d + r *(int) Math.pow(2,i++);
        System.out.println("Decimal Equivalent of " +num+ " is " +d);

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