Java InputStream Read Long readLong(InputStream in)

Description

read Long

License

Open Source License

Declaration

public static long readLong(InputStream in) throws IOException 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * The MIT License (MIT)/*  ww w .  j ava  2 s.  co  m*/
 * 
 * Copyright (c) 2016 Dalibor Drgo? <emptychannelmc@gmail.com>
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 ******************************************************************************/

import java.io.EOFException;
import java.io.IOException;
import java.io.InputStream;

public class Main {
    public static long readLong(InputStream in) throws IOException {
        long ch8 = in.read();
        long ch7 = in.read();
        long ch6 = in.read();
        long ch5 = in.read();
        long ch4 = in.read();
        long ch3 = in.read();
        long ch2 = in.read();
        long ch1 = in.read();
        if (ch1 < 0) {
            throw new EOFException();
        }
        return ((ch1 << 56) | (ch2 << 48) | (ch3 << 40) | (ch4 << 32) | (ch5 << 24) | (ch6 << 16) | (ch7 << 8)
                | (ch8 << 0));
    }

    public static long readLong(byte[] bt, int off) throws IOException {
        return ((long) bt[off++] | (bt[off++] << 8) | (bt[off++] << 16) | (bt[off++] << 24) | (bt[off++] << 32)
                | (bt[off++] << 40) | (bt[off++] << 48) | (bt[off++] << 56));
    }
}

Related

1. readLong(InputStream i)
2. readLong(InputStream in)
3. readLong(InputStream in)
4. readLong(InputStream in)
5. readLong(InputStream in)
6. readLong(InputStream in)