programming-examples/java/Basics/Program to convert binary to decimal number. (Java).java

/*
Write a program to convert binary format to decimal number using numeric operations. Below example shows how to convert binary to decimal format using numeric operations.
*/

public class BinaryToDecimal
{

    public int getDecimalFromBinary(int binary)
    {
        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++;
                    }
            }
        return decimal;
    }

    public static void main(String a[])
    {
        BinaryToDecimal bd = new BinaryToDecimal();
        System.out.println("11 ===> "+bd.getDecimalFromBinary(11));
        System.out.println("110 ===> "+bd.getDecimalFromBinary(110));
        System.out.println("100110 ===> "+bd.getDecimalFromBinary(100110));
    }
}