Originally posted by tamara omar
Code:
import javax.swing.*;
import javax.swing.text.*;
import java.awt.event.*;
import java.awt.Container;
import java.io.*;
import java.awt.*;
//import java.util.Scanner;
public class Tamara2 extends JFrame implements ActionListener { //is allowed to listen for actions
private Container pane;
JTextArea area;
JFileChooser fc;
JPanel southPanel;
JPanel northPanel;
JScrollPane scrollPane;
static private final String newline = "\n";
public Tamara2() {
pane = getContentPane(); //pane will now replace getContentPane() from now onwards
setTitle("Tamara Omar");
setSize(400, 400);
//
fc = new JFileChooser();
area = new JTextArea(10,20);
scrollPane = new JScrollPane(area);
area.setMargin(new Insets(5,5,5,5));
area.setEditable(true);
//make buttons
JButton open = makeButton("Open");
JButton save = makeButton("Save");
JButton edit = makeButton("Find");
JButton edit1= makeButton("find all");
JButton replace1=makeButton("replace all");
JButton replace = makeButton("Replace");
southPanel = new JPanel();
northPanel = new JPanel();
//add the buttons to the panel
southPanel.add(edit1);
southPanel.add(replace1);
southPanel.add(edit);
southPanel.add(replace);
//add the panel to the frame at the bottom
northPanel.add(open);
northPanel.add(save);
pane.add(northPanel, "North");
pane.add(scrollPane, "Center");
pane.add(southPanel, "South");
setVisible(true);
}
public JButton makeButton(String label) { //creates a button
JButton jb = new JButton(label);
jb.setActionCommand(label); //This message will be set in the action for the button
jb.addActionListener(this); //this (JFrame) will respond to this button's press
return jb;
}
public void actionPerformed(ActionEvent action) {
String command = action.getActionCommand();
if(command.equals("Find")) {
JOptionPane.showMessageDialog(this, "Find");
}
else if(command.equals("Replace")) {
JOptionPane.showMessageDialog(this, "Replace");
}
else if(command.equals("replace all")) {
JOptionPane.showMessageDialog(this,"replace all");
}
else if(command.equals("find all")) {
JOptionPane.showMessageDialog(this,"replace all");
}
else if(command.equals("Open")) {
int returnVal = fc.showOpenDialog(Tamara2.this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
File file = fc.getSelectedFile();
//This is where a real application would open the file.
//Scanner inFile = null;
BufferedReader inFile = null;
try {
inFile = new BufferedReader(new FileReader(file));
String line = "";
while ((line = inFile.readLine()) != null) {
//String line = inFile.readLine();
area.append(line + newline);
}
inFile.close();
}
catch(IOException iOE) {
iOE.printStackTrace();
}
}
else {
area.append("Open command cancelled by user." + newline);
}
area.setCaretPosition(area.getDocument().getLength());
}
else if(command.equals("Save")) {
try {
int returnVal = fc.showSaveDialog(Tamara2.this);
if(returnVal == JFileChooser.APPROVE_OPTION) {
File file = fc.getSelectedFile();
//FileOutputStream fos = new FileOutputStream(file);
//DataOutputStream dos = new DataOutputStream(fos);
BufferedWriter out = new BufferedWriter(new FileWriter(file));
//This is where a real application would save the file.
int rows = area.getLineCount();
for(int i = 0; i < rows; i++) {
int end = area.getLineEndOffset(i);
int start = area.getLineStartOffset(i);
int length = end - start;
if(length <= 0) {
length = 1;
}
String s = area.getText(start, (length-1));
System.out.println(s);
out.write(s);
out.newLine();
out.flush();
}
out.close();
area.append("Saving: " + file.getName() + "." + newline);
}
else {
area.append("Save command cancelled by user." + newline);
}
}
catch(Exception e) {
e.printStackTrace();
}
area.setCaretPosition(area.getDocument().getLength());
}
}
public static void main(String[] args) {
new Tamara2();
}
}
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