Simple Notepad Editor using java|Gui application

Simple Notepad Editor using java Gui application | Text Editor Java Code

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how to Create a Notepad Project in Java Gui application

In this editor, you can do different activities like typing, saving the text, printing the text, resizing the text format, changing the style of the text format and so many things. This project is based on java GUI.

Simple Notepad Editor using java|Gui application
Notepad Editor

Notepad Text Editor Java Code

// Import java GUI Package

import java.awt.*;
import java.awt.event.*;
import java.awt.event.KeyEvent;
import javax.swing.*;
import javax.swing.JOptionPane;
import java.io.*;
import java.util.*;
import javax.swing.event.*;
class Notepad2 extends JFrame implements ActionListener
{
JLabel statusBar;
JFrame f1;
JTextArea ta;
JMenuBar mb ;
JMenu file,edit,view,format,help;
JMenuItem new1,open,save,close,cut,copy,paste,print,status,wordwrap,font,viewhelp,aboutnotepad;
JFileChooser fc;
Scanner s=null;
Font fa;
JScrollPane jsp;
JLabel l1;
ImageIcon i1;
//JPanel p1;
JFrame f2;
JFrame f3;
// Create JButton in Java
JButton b1,bb1;
JButton b2,bb2;

// create comboBox variable
JComboBox c1;
JComboBox c2;
JComboBox c3;

// Create jpannel
JPanel p1=new JPanel();
public Notepad2()
{
// Create frame in java
f1=new JFrame();

// Java Jframe set title
f1.setTitle("Myprogrammingschool notepad");

// Jframe set size in java
f1.setSize(900,900);

// add Set Visible to display frame
f1.setVisible(true);

// Complete clode the program
f1.setDefaultCloseOperation(EXIT_ON_CLOSE);


f2=new JFrame("about notepad");
f3=new JFrame("format")
//statusBar=new JLabel();
statusBar=new JLabel("|| Ln 1, Col 1  ",JLabel.RIGHT); 

// Add element in combobox 

String sj2[]={"Arial","TimesRoman","Cooper","Consolas"};
c1=new JComboBox(sj2);
String sj1[]={"BOLD","ITALIC"};
c2=new JComboBox(sj1);

// Text Size 

String sj[]={"100","95","90","85","80","75","70","65","60","55","50","45","40","35","45","25","40","30","16","17","18","19","15","14","13","12","11","10","9","8","7"};
c3=new JComboBox(sj);a

// Creade button

bb1=new JButton("ok");
bb2=new JButton("cancel");
f3.setSize(300,300);
f3.setLayout(new FlowLayout());

// Perform ActionListener on Buttons

bb2.addActionListener(this);
bb1.addActionListener(this);

 // Set front style and Size

fa=new Font("Arial",Font.BOLD,45);
fc=new JFileChooser();

 // Set Jtextarea

ta = new JTextArea(60,60);
ta.setFont(fa);
ta.setBounds(0,20,800,500);

// Set the location of Menu bar

mb=new JMenuBar();
mb.setBounds(0,0,800,30);

// Add element in menu

//mb.add(file);
//file.add(open);
file=new JMenu("File");
edit=new JMenu("Edit");
view=new JMenu("view");
format=new JMenu("format");
help=new JMenu("Help");

 // Create menu

new1=new JMenuItem("new");
open=new JMenuItem("open");
save=new JMenuItem("save");
close=new JMenuItem("close");
print=new JMenuItem("print");
cut=new JMenuItem("cut");
copy=new JMenuItem("copy");
paste=new JMenuItem("paste");

 // Set Jmenu Item

status=new JMenuItem("status bar");
viewhelp=new JMenuItem("ViewHelp");
aboutnotepad=new JMenuItem("about notepad")
font=new JMenuItem("font");
wordwrap=new JMenuItem("word wrap");

// Add ImageIcon in java example

i1=new ImageIcon("notepad.png");
l1=new JLabel(i1);
f2.add(l1);

 // Add menu inside the menu bar

mb.add(file);
mb.add(edit);
mb.add(format);
mb.add(help);
mb.add(view);
p1.add(mb,BorderLayout.NORTH);
p1.setLayout(new BorderLayout());

 // add menu inside the file menu

file.add(new1);
file.addSeparator();
file.add(open);
file.addSeparator();
file.add(save);
file.addSeparator();
file.add(close);
file.addSeparator();
file.add(print);
file.addSeparator();

 // add menu inside the edit menu

edit.add(cut);
file.addSeparator();

edit.add(copy);
file.addSeparator();

edit.add(paste);
file.addSeparator();

view.add(status);

format.add(wordwrap);
file.addSeparator();

format.add(font);
file.addSeparator();
help.add(viewhelp);
file.addSeparator();
help.add(aboutnotepad);
f3.add(c1);
f3.add(c2);
f3.add(c3);
f3.add(bb1);
f3.add(bb2);
view.addSeparator();
file.setMnemonic(KeyEvent.VK_F);
edit.setMnemonic(KeyEvent.VK_E);
view.setMnemonic(KeyEvent.VK_Y);
KeyStroke opn=KeyStroke.getKeyStroke(KeyEvent.VK_O,KeyEvent.CTRL_DOWN_MASK);
open.setAccelerator(opn);

KeyStroke n1=KeyStroke.getKeyStroke(KeyEvent.VK_N,KeyEvent.CTRL_DOWN_MASK);
new1.setAccelerator(n1);

KeyStroke sav=KeyStroke.getKeyStroke(KeyEvent.VK_S,KeyEvent.CTRL_DOWN_MASK);
save.setAccelerator(sav);

KeyStroke clos=KeyStroke.getKeyStroke(KeyEvent.VK_L,KeyEvent.CTRL_DOWN_MASK);
close.setAccelerator(clos);

KeyStroke prnt=KeyStroke.getKeyStroke(KeyEvent.VK_P,KeyEvent.CTRL_DOWN_MASK);
print.setAccelerator(prnt);

KeyStroke cu=KeyStroke.getKeyStroke(KeyEvent.VK_X,KeyEvent.CTRL_DOWN_MASK);
cut.setAccelerator(cu);

KeyStroke cpy=KeyStroke.getKeyStroke(KeyEvent.VK_C,KeyEvent.CTRL_DOWN_MASK);
copy.setAccelerator(cpy);

KeyStroke pst=KeyStroke.getKeyStroke(KeyEvent.VK_V,KeyEvent.CTRL_DOWN_MASK);
paste.setAccelerator(pst);

KeyStroke ab=KeyStroke.getKeyStroke(KeyEvent.VK_B,KeyEvent.CTRL_DOWN_MASK);
status.setAccelerator(ab);

// add action listener on menu element

new1.addActionListener(this);
open.addActionListener(this);
save.addActionListener(this);
close.addActionListener(this);
cut.addActionListener(this);
copy.addActionListener(this);
paste.addActionListener(this);
print.addActionListener(this);
viewhelp.addActionListener(this);
aboutnotepad.addActionListener(this);
wordwrap.addActionListener(this);
font.addActionListener(this);
status.addActionListener(this);
JScrollPane js = new JScrollPane(ta);
js.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
js.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
/*JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);*/
p1.add(js,BorderLayout.CENTER);
p1.add(mb,BorderLayout.NORTH);
p1.add(statusBar,BorderLayout.SOUTH);
f1.add(p1);

addWindowListener(
new WindowAdapter()
{

public void windowClosing(WindowEvent we)
{
int n;
// Display dialogbox

n=JOptionPane.showOptionDialog(null,"Do you want tosave your changees?","Notepad",
JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE,null,null,null);

if(n==JOptionPane.NO_OPTION)
{
System.exit(0);
}
else if(n==JOptionPane.CLOSED_OPTION)
{
f1.setVisible(true);
}
else if(n==JOptionPane.YES_OPTION)
{
System.out.println("hai");
JFrame i=new JFrame();
int p=fc.showSaveDialog(i);
if(p==JFileChooser.APPROVE_OPTION)
{
try
{
FileWriter f1=new FileWriter(fc.getSelectedFile());
BufferedWriter br=new BufferedWriter(f1);
s=new Scanner(ta.getText());
while(s.hasNext())
{
br.write(s.nextLine());
br.newLine();
}
br.close();
}

catch(IOException ie)
{
System.out.println(ie);
}
}
}
System.exit(0);
}
});

ta.addCaretListener(
new CaretListener()
{
public void caretUpdate(CaretEvent e)
{
int lineNumber=0, column=0, pos=0;
try
{
pos=ta.getCaretPosition();
lineNumber=ta.getLineOfOffset(pos);
column=pos-ta.getLineStartOffset(lineNumber);
}catch(Exception excp){}
if(ta.getText().length()==0){lineNumber=0; column=0;}
statusBar.setText("||Ln "+(lineNumber+1)+", Col "+(column+1));
}
});
}

// Action Performed Java GUI notepad editor project

public void actionPerformed(ActionEvent ae) {
if(ae.getSource().equals(new1))
{
ta.setText("");
}
if(ae.getSource().equals(close))
{
System.exit(0);
}
if(ae.getSource().equals(open))
{
ta.setText("");
int n=fc.showOpenDialog(this);
if(n==JFileChooser.APPROVE_OPTION)
{
try
{
Scanner sc=new Scanner(fc.getSelectedFile());
while(sc.hasNext())
{
String str=sc.nextLine();
ta.append(str+"n");
}
}
catch(FileNotFoundException aie)
{
System.out.println(aie);
}
}
}

if(ae.getSource().equals(save))
{
int p=fc.showSaveDialog(this);
if(p==JFileChooser.APPROVE_OPTION)
{
try
{
FileWriter f1=new FileWriter(fc.getSelectedFile());
File select=fc.getSelectedFile();
if(select.exists())
JOptionPane.showMessageDialog(null,"file already exists,enter another filename");
else
{


BufferedWriter br=new BufferedWriter(f1);
s=new Scanner(ta.getText());
while(s.hasNext())
{
br.write(s.nextLine());
br.newLine();
}
br.close();

}
}
catch(IOException ex)
{
System.out.println(ex);
}
}
}

if(ae.getSource().equals(cut))
{
ta.cut();
}
if(ae.getSource().equals(status))
{
/*ta.addCaretListener(
new CaretListener()
{
public void createUpdate(CaretEvent e)
{
int ln=0,clm=0,pos=0;
try
{
pos=ta.getCaretPosition();
ln=ta.getLineOfOffset(pos);
clm=pos-ta.getLineStartOffset(ln);
}catch(Exception excp){}
if(ta.getText().length()==0)
{
ln=0;
clm=0;
}
statusBar.setText("|| ln"+(ln+1)+" col"+(clm+1));
}
});*/

}

if(ae.getSource().equals(copy))
{
/*Font f2=new Font("Arial",Font.ITALIC,18);
ta.setFont(f2);*/
ta.copy();
}
if(ae.getSource().equals(paste))
{
ta.paste();
}
if(ae.getSource().equals(print))
{
try
{
ta.print();
}
catch(Exception pe)
{
System.out.print(pe);
}
}
if(ae.getSource().equals(viewhelp))
{//System.out.println("hai go to browser");
JOptionPane.showMessageDialog(null,"go and search in browser");
}
if(ae.getSource().equals(aboutnotepad))
{
f2.setVisible(true);

}
if(ae.getSource().equals(font))
{
f3.setVisible(true);
}
if(ae.getSource().equals(bb1))
{
String lo=(String)c1.getSelectedItem();
String lo1=(String)c2.getSelectedItem();
int i1=Integer.parseInt((String)c3.getSelectedItem());
Font fff=new Font("Cooper",Font.BOLD,10);
if(lo1.equals("BOLD"))
{
fff=new Font(lo,Font.BOLD,i1);
}
if(lo1.equals("ITALIC"))
{
fff=new Font(lo,Font.ITALIC,i1);
}
ta.setFont(fff);
JOptionPane.showMessageDialog(null,"font changed");
f3.setVisible(false);
}
if(ae.getSource().equals(bb2))
f3.setVisible(false);
}

public static void main(String args[])
{
new Notepad2();
}
}

OutPut 

Simple Notepad Editor using a java | Gui application

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Tags: action performed java,action perform,action listener in java,java jbutton actionlistener,actionlistener java 8,how to use actionlistener in java,jtextarea in java,image icon in java,imageicon in java example

Pramod Kumar Yadav is from Janakpur Dham, Nepal. He was born on December 23, 1994, and has one elder brother and two elder sisters. He completed his education at various schools and colleges in Nepal and completed a degree in Computer Science Engineering from MITS in Andhra Pradesh, India. Pramod has worked as the owner of RC Educational Foundation Pvt Ltd, a teacher, and an Educational Consultant, and is currently working as an Engineer and Digital Marketer.

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