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<syntaxhighlight lang="java" line start="1" enclose="div">/**
* Copyright(C) 1998
* All Rights Reserved. Salih Yurttas, ZCubes, BitsOfCode Software Systems, Inc..
*
* Permission to use, copy, modify, and distribute this
* software and its documentation for EDUCATIONAL purposes
* and without fee is hereby granted provided that this
* copyright notice appears in all copies.
*
* @date : January 1, 1998.
* @author : Salih Yurttas.
*/

import java.awt.*;
import java.awt.event.*;

import java.io.*;

public class NameFile01 extends Frame
implements ActionListener {

public static void main(String[] args)
throws IOException
{
Frame f = new NameFile01();

f.setSize(400, 200); // frame size set
f.setVisible(true); // frame displayed
}

private int NP = 2;
private Button[] bList = new Button[NP];
private TextField[] tFList = new TextField[NP];

private static IntegerList givenList;

class WindowEventClosing extends WindowAdapter {
public void windowClosing(WindowEvent e) {
System.exit (0);
}
}

public NameFile01()
throws IOException
{
setTitle("FileNameUI00");
this.addWindowListener(new WindowEventClosing());

setLayout(new FlowLayout());

Panel[] pList = new Panel[NP]; // create panels.
for(int i=0; i<NP; i++)
pList[i] = new Panel();

String[] lList = {"Input Filename",
"Output Filename"};

for(int i=0; i<NP; i++) {
tFList[i] = new TextField("", 24);
tFList[i].addActionListener(this);
pList[i].add(tFList[i]); // add textfields to the panels.
bList[i] = new Button(lList[i]); // create buttons with labels.
bList[i].addActionListener(this);
pList[i].add(bList[i]); // add buttons to the panels.
add(pList[i]); // add panels to the frame.
}
tFList[0].setText("Enter input filename");
tFList[1].setEditable(false);
bList[1].setEnabled(false);
}

public void actionPerformed(ActionEvent e) {
String arg = e.getActionCommand();

if (arg.equals("Input Filename")) {
try {
String inFileName = tFList[0].getText();
givenList = new IntegerList();
givenList.getIntegerList(inFileName);

tFList[0].setEditable(false);
bList[0].setEnabled(false);
tFList[0].setText("Input File is OK.");
tFList[1].setText("Enter output filename");
tFList[1].setEditable(true);
bList[1].setEnabled(true);
}
catch (IOException ioe) {
System.out.println("Error: " + ioe);
System.exit(0);
}
}
else {
try {
String outFileName = tFList[1].getText();
givenList.putIntegerList(outFileName);

tFList[1].setEditable(false);
bList[1].setEnabled(false);
tFList[1].setText("Output File is OK.");
tFList[0].setText("Enter input filename");
tFList[0].setEditable(true);
bList[0].setEnabled(true);
}
catch (IOException ioe) {
System.out.println("Error: " + ioe);
System.exit(0);
}
}
}

}
</syntaxhighlight>

Yurttas/PL/OOL/Java/F/05/02/05/01/NameFile01.java - Revision history

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