Android InputStream Read ReadInt(FileInputStream stream)

Description

Read Int

License

Open Source License

Declaration

public static int ReadInt(FileInputStream stream) throws IOException 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (C) 2010-2011 Dmitriy Nesterov
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version./* w w  w  . j  a  va 2  s  . com*/
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/

import java.io.FileInputStream;

import java.io.IOException;

public class Main {
    public static int ReadInt(FileInputStream stream) throws IOException {
        byte[] bytes = new byte[4];
        if (stream.read(bytes) != 4) {
            //TODO : Throw error and handle it.
        }

        return BytesToInt(bytes);
    }

    public static int BytesToInt(byte[] value) {
        int result = 0;

        for (int i = 0; i < 4; i++) {
            int shift = (4 - 1 - i) * 8;
            result += (value[i] & 0x000000FF) << shift;
        }

        return result;
    }
}

Related

1. ReadArrayOfStringPairs( FileInputStream stream)
2. ReadString(FileInputStream stream)
3. readContents(InputStream input, String encoding)
4. readFile(InputStream input)
5. readFully(InputStream in)