Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.io.IOException;

public class Main {
    /**
     * Decodes HEX representation of the string.
     *
     * @param data HEX
     * @return String representation of the {@code data}
     * @throws IOException if some error occurs
     */
    private static String decodeHex(String data) throws IOException {
        if (data == null || data.isEmpty()) {
            return data;
        }
        if (data.length() % 2 != 0) {
            throw new IOException("String is not in hexadecimal representation.");
        }
        byte[] bytes = new byte[data.length() / 2];
        for (int i = 0; i < data.length(); i += 2) {
            bytes[i / 2] = Integer.valueOf(data.substring(i, i + 2), 16).byteValue();
        }
        return new String(bytes, "UTF-8");
    }
}