Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

public class Main {
    public static int byteArrayToInt(byte[] b) {
        return byteArrayToInt(b, 0);
    }

    private static int byteArrayToInt(byte[] b, int offset) {
        return byteArrayToInt(b, offset, b.length);
    }

    public static int byteArrayToInt(byte[] b, int offset, int length) {
        return (int) byteArrayToLong(b, offset, length);
    }

    public static long byteArrayToLong(byte[] b, int offset, int length) {
        if (b.length < offset + length) {
            throw new IllegalArgumentException("offset + length must be less than or equal to b.length");
        }

        long value = 0;
        for (int i = 0; i < length; i++) {
            int shift = (length - 1 - i) * 8;
            value += (b[i + offset] & 0x000000FF) << shift;
        }
        return value;
    }
}