MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.FileNotFoundException;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;

public class MainClass {
    public static void main(String[] args) {
        File aFile = new File("file.dat");
        FileInputStream inFile = null;

        try {
            inFile = new FileInputStream(aFile);
        } catch (FileNotFoundException e) {
            e.printStackTrace(System.err);
            System.exit(0);
        }
        FileChannel inChannel = inFile.getChannel();
        final int COUNT = 6;
        ByteBuffer buf = ByteBuffer.allocate(8 * COUNT);
        long[] data = new long[COUNT];
        try {
            while (inChannel.read(buf) != -1) {
                ((ByteBuffer) (buf.flip())).asLongBuffer().get(data);
                System.out.println();
                for (long prime : data)
                    System.out.printf("%10d", prime);
                buf.clear();
            }
            System.out.println("\nEOF reached.");
            inFile.close();
        } catch (IOException e) {
            e.printStackTrace(System.err);
            System.exit(1);
        }
    }
}