Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.math.BigInteger;

public class Main {
    /**
     * Transforms a number String to a byte array
     * @param in number String
     * @return
     */
    public static byte[] NumStringToBytes(String in) {
        BigInteger num = new BigInteger(in);
        byte[] bytes = num.toByteArray();
        if (bytes.length > 0) {
            if (bytes[0] == 0) {
                byte[] cuttedByte = new byte[bytes.length - 1];
                System.arraycopy(bytes, 1, cuttedByte, 0, bytes.length - 1);
                return cuttedByte;
            }

        }
        return num.toByteArray();
    }
}