long To Byte Array - Java java.lang

Java examples for java.lang:byte array to long

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Description

long To Byte Array

Demo Code

/**//from w w w  .  j  a  va 2 s . c  om
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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;
import java.nio.ByteBuffer;

public class Main {
    public static void main(String[] argv) throws Exception {
        long arg = 2;
        System.out.println(java.util.Arrays.toString(longToByteArray(arg)));
    }

    public static byte[] longToByteArray(long arg) {
        byte[] retVal = new byte[8];
        ByteBuffer bb = ByteBuffer.wrap(retVal);
        bb.putLong(arg);
        return retVal;
    }
}

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