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

public class MainClass {
    public static void main(String[] args) {
        File aFile = new File("C:/test.bin");
        FileInputStream inFile = null;
        try {
            inFile = new FileInputStream(aFile);
        } catch (FileNotFoundException e) {
            e.printStackTrace(System.err);
        }
        FileChannel inChannel = inFile.getChannel();
        final int PRIMECOUNT = 6;
        ByteBuffer buf = ByteBuffer.allocate(8 * PRIMECOUNT);
        long[] primes = new long[PRIMECOUNT];
        try {
            while (inChannel.read(buf) != -1) {
                ((ByteBuffer) (buf.flip())).asLongBuffer().get(primes);
                for (long prime : primes) {
                    System.out.printf("%10d", prime);
                }
                buf.clear();
            }
            inFile.close();
        } catch (IOException e) {
            e.printStackTrace(System.err);
        }
    }
}