Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;

import java.io.IOException;

public class Main {

    public static byte[] readFile(File file) throws IOException {
        if (!file.exists()) {
            throw new IOException("not crete file=" + file.getAbsolutePath());
        }
        FileInputStream fileInputStream = null;
        ByteArrayOutputStream byteArrayOutputStream = null;
        try {
            fileInputStream = new FileInputStream(file);
            byteArrayOutputStream = new ByteArrayOutputStream(64);
            int length = 0;
            byte[] buffer = new byte[1024];
            while ((length = fileInputStream.read(buffer)) != -1) {
                byteArrayOutputStream.write(buffer, 0, length);
            }
            return byteArrayOutputStream.toByteArray();
        } finally {
            if (fileInputStream != null) {
                fileInputStream.close();
            }
            if (byteArrayOutputStream != null) {
                byteArrayOutputStream.close();
            }
        }
    }
}