Creating a log in a text file

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hersh

Creating a log in a text file
1 Answer(s) 4 years and 8 months ago
Posted in : Applet

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October 3, 2008 at 4:11 PM

Hi,

import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.applet.Applet;
import java.net.*;

public class AppletTextDemo extends Applet{
JButton write = new JButton("WriteToFile");
Label label1 = new Label("Enter the file name:");
TextField text = new TextField(20);
Label label2 = new Label("Write your text:");
TextArea area = new TextArea(10,20);
public void init(){
add(label1);
label1.setBackground(Color.lightGray);
add(text);
add(label2);
label2.setBackground(Color.lightGray);
add(area);
add(write,BorderLayout.CENTER);
write.addActionListener(new ActionListener (){
public void actionPerformed(ActionEvent e){
new WriteText();
}
});
}
public class WriteText {
WriteText(){
try {
String str = text.getText();
if(str.equals("")){
JOptionPane.showMessageDialog(null,"Please enter the file name!");
text.requestFocus();
}
else{
File f = new File(str);
if(f.exists()){
BufferedWriter out = new BufferedWriter(new FileWriter(f,true));
if(area.getText().equals("")){
JOptionPane.showMessageDialog(null,"Please enter your text!");
area.requestFocus();
}
else{
out.write(area.getText());
if(f.canWrite()){
JOptionPane.showMessageDialog(null,"Text is written in "+str);
text.setText("");
area.setText("");
text.requestFocus();
}
else{
JOptionPane.showMessageDialog(null,"Text isn't written in "+str);
}
out.close();
}
}
else{
JOptionPane.showMessageDialog(null,"File not found!");
text.setText("");
text.requestFocus();
}
}
}
catch(Exception x){
x.printStackTrace();
}
}
}
}

----------------------
<HTML>
<BODY>
<div align = "center">
<APPLET CODE = "AppletTextDemo.class" WIDTH = "500" HEIGHT = "400"></APPLET>
</div>
</BODY>
</HTML>

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