Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2009 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

public class Main {
    public static byte[] hexStringToBytes(String hexString) {
        byte[] hsb = hexString.getBytes();
        byte[] bytes = null;
        int j, n = 0;
        for (j = 0; j < 2; j++) {
            int i = 0;
            byte b = 0;
            if (j == 1)
                bytes = new byte[n];
            n = 0;
            for (byte c : hsb) {
                boolean isHexDigit = (c >= 48 && c <= 57) || (c >= 65 && c <= 70) || (c >= 97 && c <= 102);
                if (isHexDigit) {
                    c = (byte) ((c & 0xDF) - 48);
                    if (c > 9)
                        c -= 7;
                    b = (byte) ((b << 4) + (0x0f & c));
                    i++;
                }
                if ((i > 0 && !isHexDigit) || i > 1) {
                    if (j == 1)
                        bytes[n] = b;
                    b = 0;
                    n++;
                    i = 0;
                }
            }
        }
        return bytes;
    }
}