2 changed files with 364 additions and 34 deletions
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// Java Program to create a text editor using java |
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import java.awt.*; |
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import javax.swing.*; |
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import java.io.*; |
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import java.awt.event.*; |
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import javax.swing.plaf.metal.*; |
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import javax.swing.text.*; |
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class Geburtstag extends JFrame implements ActionListener { |
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// Text component |
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JTextArea t; |
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// Frame |
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JFrame f; |
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// Constructor |
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Geburtstag() |
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{ |
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// Create a frame |
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f = new JFrame("editor"); |
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try { |
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// Set metl look and feel |
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UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel"); |
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// Set theme to ocean |
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MetalLookAndFeel.setCurrentTheme(new OceanTheme()); |
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} |
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catch (Exception e) { |
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} |
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// Text component |
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t = new JTextArea(); |
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// Create a menubar |
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JMenuBar mb = new JMenuBar(); |
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// Create amenu for menu |
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JMenu m1 = new JMenu("File"); |
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// Create menu items |
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JMenuItem mi1 = new JMenuItem("New"); |
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JMenuItem mi2 = new JMenuItem("Open"); |
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JMenuItem mi3 = new JMenuItem("Save"); |
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JMenuItem mi9 = new JMenuItem("Print"); |
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// Add action listener |
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mi1.addActionListener(this); |
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mi2.addActionListener(this); |
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mi3.addActionListener(this); |
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mi9.addActionListener(this); |
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m1.add(mi1); |
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m1.add(mi2); |
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m1.add(mi3); |
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m1.add(mi9); |
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// Create amenu for menu |
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JMenu m2 = new JMenu("Edit"); |
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// Create menu items |
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JMenuItem mi4 = new JMenuItem("cut"); |
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JMenuItem mi5 = new JMenuItem("copy"); |
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JMenuItem mi6 = new JMenuItem("paste"); |
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// Add action listener |
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mi4.addActionListener(this); |
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mi5.addActionListener(this); |
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mi6.addActionListener(this); |
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m2.add(mi4); |
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m2.add(mi5); |
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m2.add(mi6); |
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JMenuItem mc = new JMenuItem("close"); |
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mc.addActionListener(this); |
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mb.add(m1); |
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mb.add(m2); |
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mb.add(mc); |
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f.setJMenuBar(mb); |
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f.add(t); |
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f.setSize(500, 500); |
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f.show(); |
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} |
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// If a button is pressed |
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public void actionPerformed(ActionEvent e) |
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{ |
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String s = e.getActionCommand(); |
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if (s.equals("cut")) { |
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t.cut(); |
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} |
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else if (s.equals("copy")) { |
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t.copy(); |
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} |
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else if (s.equals("paste")) { |
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t.paste(); |
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} |
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else if (s.equals("Save")) { |
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// Create an object of JFileChooser class |
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JFileChooser j = new JFileChooser("f:"); |
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// Invoke the showsSaveDialog function to show the save dialog |
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int r = j.showSaveDialog(null); |
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if (r == JFileChooser.APPROVE_OPTION) { |
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// Set the label to the path of the selected directory |
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File fi = new File(j.getSelectedFile().getAbsolutePath()); |
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try { |
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// Create a file writer |
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FileWriter wr = new FileWriter(fi, false); |
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// Create buffered writer to write |
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BufferedWriter w = new BufferedWriter(wr); |
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// Write |
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w.write(t.getText()); |
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w.flush(); |
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w.close(); |
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} |
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catch (Exception evt) { |
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JOptionPane.showMessageDialog(f, evt.getMessage()); |
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} |
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} |
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// If the user cancelled the operation |
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else |
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JOptionPane.showMessageDialog(f, "the user cancelled the operation"); |
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} |
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else if (s.equals("Print")) { |
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try { |
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// print the file |
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t.print(); |
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} |
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catch (Exception evt) { |
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JOptionPane.showMessageDialog(f, evt.getMessage()); |
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} |
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} |
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else if (s.equals("Open")) { |
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// Create an object of JFileChooser class |
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JFileChooser j = new JFileChooser("f:"); |
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// Invoke the showsOpenDialog function to show the save dialog |
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int r = j.showOpenDialog(null); |
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// If the user selects a file |
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if (r == JFileChooser.APPROVE_OPTION) { |
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// Set the label to the path of the selected directory |
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File fi = new File(j.getSelectedFile().getAbsolutePath()); |
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try { |
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// String |
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String s1 = "", sl = ""; |
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// File reader |
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FileReader fr = new FileReader(fi); |
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// Buffered reader |
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BufferedReader br = new BufferedReader(fr); |
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// Initilize sl |
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sl = br.readLine(); |
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// Take the input from the file |
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while ((s1 = br.readLine()) != null) { |
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sl = sl + "\n" + s1; |
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} |
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// Set the text |
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t.setText(sl); |
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} |
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catch (Exception evt) { |
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JOptionPane.showMessageDialog(f, evt.getMessage()); |
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} |
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} |
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// If the user cancelled the operation |
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else |
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JOptionPane.showMessageDialog(f, "the user cancelled the operation"); |
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} |
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else if (s.equals("New")) { |
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t.setText(""); |
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} |
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else if (s.equals("close")) { |
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f.setVisible(false); |
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} |
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} |
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// Main class |
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public static void main(String args[]) |
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{ |
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fenster e = new fenster(); |
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} |
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} |
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