Returns the int at the given offset of the byte array. - Java java.lang

Java examples for java.lang:byte Array to int

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Description

Returns the int at the given offset of the byte array.

Demo Code

/*/*from w w w .  jav a2  s  .c  om*/
 * Mckoi Software ( http://www.mckoi.com/ )
 * Copyright (C) 2000 - 2015  Diehl and Associates, Inc.
 *
 * 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.
 */
//package com.java2s;

public class Main {
    public static void main(String[] argv) throws Exception {
        byte[] arr = new byte[] { 34, 35, 36, 37, 37, 37, 67, 68, 69 };
        int offset = 2;
        System.out.println(getInt(arr, offset));
    }

    /**
     * Returns the int at the given offset of the byte array.
     */
    public static final int getInt(byte[] arr, int offset) {
        int c1 = (((int) arr[offset + 0]) & 0x0FF);
        int c2 = (((int) arr[offset + 1]) & 0x0FF);
        int c3 = (((int) arr[offset + 2]) & 0x0FF);
        int c4 = (((int) arr[offset + 3]) & 0x0FF);
        return (c1 << 24) + (c2 << 16) + (c3 << 8) + (c4);
    }
}

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