Binary To Decimal - Java Algorithm

Java examples for Algorithm:Number

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Description

Binary To Decimal

Demo Code

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class _13_BinaryToDecimal {

    public static void main(String[] args) throws IOException {
        BufferedReader bf = new BufferedReader(new InputStreamReader(
                System.in));/*from w  w  w.ja  va  2  s  .  com*/

        String bin = bf.readLine();
        int decimal = 0;

        for (int i = 0; i < bin.length(); i++) {
            if (bin.charAt(i) == '0') {
                continue;
            }
            decimal += Math.pow(2, i);
        }

        System.out.println(decimal);
    }

}

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