Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.io.Closeable;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;

import java.io.IOException;

public class Main {

    public static byte[] readBytes(File file) throws IOException {
        //check
        if (!file.exists()) {
            throw new FileNotFoundException("File not exist: " + file);
        }
        if (!file.isFile()) {
            throw new IOException("Not a file:" + file);
        }

        long len = file.length();
        if (len >= Integer.MAX_VALUE) {
            throw new IOException("File is larger then max array size");
        }

        byte[] bytes = new byte[(int) len];
        FileInputStream in = null;
        try {
            in = new FileInputStream(file);
            in.read(bytes);
        } finally {
            close(in);
        }

        return bytes;
    }

    public static void close(Closeable closeable) {
        if (closeable == null)
            return;
        try {
            closeable.close();
        } catch (IOException e) {
        }
    }
}