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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);
}
}
}
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