Example: Binary to Decimal Converter in Java in Java

// Binary to Decimal Converter
import java.util.Scanner;

public class Main {

    /**
     * Converts a binary string to its decimal equivalent.
     * @param binaryString The binary number as a string.
     * @return The decimal equivalent of the binary string.
     */
    public static int binaryToDecimal(String binaryString) {
        int decimal = 0;
        int power = 0; // Represents 2^0, 2^1, 2^2, ...

        // Iterate through the binary string from right to left
        for (int i = binaryString.length() - 1; i >= 0; i--) {
            char bit = binaryString.charAt(i);

            // If the bit is '1', add 2^power to the decimal number
            if (bit == '1') {
                decimal += Math.pow(2, power);
            }
            power++; // Increment power for the next bit
        }
        return decimal;
    }

    public static void main(String[] args) {
        // Example usage
        String binary = "1011";
        int decimalResult = binaryToDecimal(binary);
        System.out.println("Binary: " + binary + " -> Decimal: " + decimalResult); // Output: 11
    }
}