Reading a Binary File : FileInputStream « File « Java Tutorial

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);
    }
  }
}

11.8.FileInputStream
	11.8.1.	FileInputStream
	11.8.2.	Create FileInputStream and read, display data
	11.8.3.	Getting FileChannel from FileInputStream
	11.8.4.	Creating File Input Streams from file name
	11.8.5.	Creating FileInputStream from File object
	11.8.6.	Using a FileDescriptor from getFD() and creating a FileInputStream from FileDescriptor
	11.8.7.	Constructing FileInputStream to read from a Text File
	11.8.8.	Skip n bytes while reading the file using FileInputStream
	11.8.9.	Copy a file with read(byte[] data) and write(byte[] data)
	11.8.10.	Reading a Binary File
	11.8.11.	Reading Mixed Data from a File
	11.8.12.	Read one byte from a file
	11.8.13.	Read file character by character
	11.8.14.	Reading a File into a Byte Array: reads the entire contents of a file into a byte array
	11.8.15.	Read bytes and display their hexadecimal values.
	11.8.16.	Reading UTF-8 Encoded Data
	11.8.17.	Reading into a Large Buffer through FileChannel
	11.8.18.	Display file contents in hexadecimal