//IntFile.java
//demo to make file of ints

import java.io.*;
import javax.swing.*;

public class IntFile {
    public static void main( String[] args ) {


	String input = JOptionPane.showInputDialog( "Enter number of ints" );
	int fileSize = Integer.parseInt( input );

	File outFile;
	FileOutputStream outFileStream; 
	DataOutputStream outDataStream;
	try {
	    outFile = new File( "sampleInts.data" );
	    outFileStream = new FileOutputStream( outFile );
	    outDataStream = new DataOutputStream( outFileStream );
	    for (int i=1; i<=fileSize; i++)
		outDataStream.writeInt( (int)(Math.random()*1000) );

	    outDataStream.close();
	}
	catch (IOException e) {
	    System.out.println( "threw an exception...deal with it..." );
	}

	/*
	File inFile;
	FileInputStream inFileStream; 
	DataInputStream inDataStream;
	try {
	    inFile = new File( "sampleInts.data" );
	    inFileStream = new FileInputStream( inFile );
	    inDataStream = new DataInputStream( inFileStream );
	    int i =  inDataStream.readInt();
	    inDataStream.close();
	}
	catch (IOException e) {
	    System.out.println( "threw an exception...deal with it..." );
	}
	*/

	System.exit(0);
    }
}