jeditor.java

This is the complete Editor Using java

package com.jeditor;
import java.awt.*;

import javax.swing.*;
import java.io.*;
import java.awt.event.*;
import sun.swing.plaf.nimbus.NimbusLookAndFeel;
class JEditor extends WindowAdapter implements ActionListener {
    private JFrame mainFrame;
    private JTextArea textAreaFile,textAreaOutput;    
    private JMenuBar menuBar;    
    private JMenuItem compileFile, runFile, newFile, openFile, saveFile,saveAsFile, exit;
    private JMenuItem cut, copy, paste, select, find, replace, aboutMe, help;
    char []fileshort={'N','O','S','A','x'};
    char []editshort={'C','y','P','e',};
    char []findshort={'F','R'};    
    char []helpshort={'b','H'};
    private JSplitPane jsplitPane;    
    private JScrollPane scrollPaneFile;
    private JScrollPane scrollPaneOutput;
    private JToolBar jtoolBar;
    static String title, filetitle, dir, tmaintext, state;
    File filePath;
    public JEditor() {
        title="JEditor";
        filePath=new File("D:\\Test"); 
        UIManager.put("swing.boldMetal", Boolean.FALSE);
        //JFrame.setDefaultLookAndFeelDecorated(true);
        Toolkit.getDefaultToolkit().setDynamicLayout(true);
        System.setProperty("sun.awt.noerasebackground","true");
        mainFrame=new JFrame(title);
        Toolkit theKit = mainFrame.getToolkit();
        Dimension dim = theKit.getScreenSize();
        mainFrame.setBounds(dim.width/4, dim.height/4, 600, 500);
        try {
            UIManager.setLookAndFeel(new NimbusLookAndFeel());
        }  
        catch ( UnsupportedLookAndFeelException e ) {
            System.out.println ("Program Terminated");
            System.exit(0);
        }
        menuBar=new JMenuBar();

        JMenu filemenu=new JMenu("File");
        JMenu editmenu=new JMenu("Edit");
        JMenu findmenu=new JMenu("Search");
        JMenu buildmenu=new JMenu("Build");
        JMenu helpmenu=new JMenu("Help");
        
        filemenu.setMnemonic('f');
        editmenu.setMnemonic('e');
        findmenu.setMnemonic('s');
        buildmenu.setMnemonic('b');
        helpmenu.setMnemonic('h');
        
        newFile=new JMenuItem("New",new ImageIcon("new.jpg"));
        openFile=new JMenuItem("Open",new ImageIcon("openFile.jpg"));
        saveFile=new JMenuItem("Save",new ImageIcon("saveFile.jpg"));
        saveAsFile=new JMenuItem("Save As",new ImageIcon("saveFile.jpg"));
        exit=new JMenuItem("Exit",new ImageIcon("error1.gif"));
        
        cut=new JMenuItem("Cut",new ImageIcon("cut.jpg"));
        copy=new JMenuItem("Copy",new ImageIcon("copy.jpg"));
        paste=new JMenuItem("Paste",new ImageIcon("paste.jpg"));
        select=new JMenuItem("Select All");
        
        find=new JMenuItem("Find",new ImageIcon("find.jpg"));
        replace=new JMenuItem("Find & Replace",new ImageIcon("replace.gif"));
        
        compileFile=new JMenuItem("Compile",new ImageIcon("compileFile.gif"));
        runFile=new JMenuItem("Execute",'t');
        
        aboutMe=new JMenuItem("About");
        help=new JMenuItem("Help",new ImageIcon("help.gif"));
        
        mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        filemenu.add(newFile);
        filemenu.add(openFile);
        filemenu.add(saveFile);
        filemenu.add(saveAsFile);
        filemenu.add(exit);
                
        editmenu.add(cut);
        editmenu.add(copy);
        editmenu.add(paste);
        editmenu.add(select);
        
        findmenu.add(find);
        findmenu.add(replace);
        
        buildmenu.add(compileFile,0);
        buildmenu.add(runFile,1);
        
        helpmenu.add(help);
        helpmenu.add(aboutMe);
        
        newFile.addActionListener(new NewFile());
        openFile.addActionListener(this);
        saveFile.addActionListener(this);
        saveAsFile.addActionListener(this);
        exit.addActionListener(this);
        
        cut.addActionListener(this);
        copy.addActionListener(this);
        paste.addActionListener(this);
        select.addActionListener(this);
        
        find.addActionListener(this);
        replace.addActionListener(this);
        
        compileFile.addActionListener(this);
        runFile.addActionListener(this);
        
        aboutMe.addActionListener(this);
        help.addActionListener(this);        
        
        newFile.setFont(new Font("Times new Roman",Font.ITALIC|Font.BOLD,15));
        openFile.setFont(new Font("Times new Roman",Font.ITALIC|Font.BOLD,15));
        saveFile.setFont(new Font("Times new Roman",Font.ITALIC|Font.BOLD,15));
        saveAsFile.setFont(new Font("Times new Roman",Font.ITALIC|Font.BOLD,15));
        exit.setFont(new Font("Times new Roman",Font.ITALIC|Font.BOLD,15));
        
        newFile.setMnemonic('n');
        openFile.setMnemonic('o');
        saveFile.setMnemonic('s');
        saveAsFile.setMnemonic('a');
        exit.setMnemonic('x');
        
        cut.setMnemonic('t');
        copy.setMnemonic('c');        
        paste.setMnemonic('p');
        select.setMnemonic('a');
        
        find.setMnemonic('f');
        replace.setMnemonic('r');
        
        compileFile.setMnemonic('c');
        runFile.setMnemonic('x');
        
        help.setMnemonic('h');
        aboutMe.setMnemonic('a');
        
        
        JCheckBoxMenuItem bld=new JCheckBoxMenuItem("Bold");
        JCheckBoxMenuItem itlc=new JCheckBoxMenuItem("Italic");
        
        bld.addActionListener(this);
        itlc.addActionListener(this);
        
        bld.setMnemonic('b');
        itlc.setMnemonic('i');
        
        editmenu.add(bld,0);
        editmenu.add(itlc,1);
        editmenu.insertSeparator(2);
        
        menuBar.add(filemenu);
        menuBar.add(editmenu);
        menuBar.add(findmenu);
        menuBar.add(buildmenu);
        menuBar.add(helpmenu);
        
        runFile.setEnabled(true);        
        
        textAreaFile=new JTextArea();       
        textAreaOutput=new JTextArea("");        
        
        scrollPaneFile=new JScrollPane(textAreaFile, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
        scrollPaneOutput=new JScrollPane(textAreaOutput, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
        
        jsplitPane=new JSplitPane(JSplitPane.VERTICAL_SPLIT,scrollPaneFile,scrollPaneOutput);
        scrollPaneFile.setMinimumSize(new Dimension(800,300));
        scrollPaneOutput.setMinimumSize(new Dimension(800,150));
        scrollPaneFile.setPreferredSize(new Dimension(800,500));
        
        
        jtoolBar=new JToolBar("Tools", JToolBar.HORIZONTAL);
        
        mainFrame.getContentPane().add(jtoolBar);
        
        mainFrame.setJMenuBar(menuBar);
        mainFrame.getContentPane().add(jsplitPane);
        mainFrame.addWindowListener(this);
        mainFrame.setVisible(true);
    }
    public void actionPerformed(ActionEvent e) {
    	String event=e.getActionCommand();
    	/******************************		FIND	 ****************************/
    	if(event.equals("Find")) {
    		new Find(textAreaFile);
    	}
    	/**************************		FIND & REPLACE     **********************/
    	if(event.equals("Find & Replace")) {
    		new Replace(textAreaFile);
    	}
    	/******************************		COPY	 ****************************/    	
    	if(event.equals("Copy")) {
    		textAreaFile.copy();
    	}
    	/******************************		CUT 	 ****************************/    	
    	if(event.equals("Cut")) {
    		textAreaFile.cut();
    	}
    	/******************************		PASTE	 ****************************/
    	if(event.equals("Paste")) {
    		textAreaFile.paste();
    	}
    	/***************************   SELECT ALL	 ****************************/    	
    	if(event.equals("Select All")) {
    		textAreaFile.selectAll();
    	}
    	/**************************		SAVE    *******************************/
    	if(event.equals("Save")) {
    		if(mainFrame.getTitle().equals(title)) {    		
    			JFileChooser fileChooser=new JFileChooser();
    			fileChooser.setDialogTitle("Save");
    			int alert=fileChooser.showSaveDialog(mainFrame);
    			if(alert==JFileChooser.APPROVE_OPTION) {
    				try {
			    		tmaintext = textAreaFile.getText();
			    		filetitle = fileChooser.getSelectedFile().getName();
			    		dir = fileChooser.getSelectedFile().getParent();
			    		File file=new File(dir,filetitle);
			    		System.out.println("Path of File"+file.getPath());
			    		mainFrame.setTitle(filetitle+title);
			    		//fileChooser.setCurrentDirectory(file);
			    		FileOutputStream fos=new FileOutputStream(file);
			    		for(int i=0;i<tmaintext.length();i++) {
			    			fos.write((byte)tmaintext.charAt(i));
			    		}
			    		fos.close();
			    		System.out.println("In Save 1");	    		
	    			}catch(Exception ef){}
	    		}	    	
	    		else if(alert==JFileChooser.CANCEL_OPTION) {
	    			System.out.println("Save Canceled");
	    		}	    		
		    }
		    else {
		    	try {
		    		tmaintext = textAreaFile.getText();
		    		File file = new File(dir,filetitle);
		    		FileOutputStream fos = new FileOutputStream(file);
		    		for(int i=0;i<tmaintext.length();i++) {
		    			fos.write((byte)tmaintext.charAt(i));
		    		}
		    		fos.close();
		    		System.out.println("In Save 2");
		    	}
		    	catch(Exception ef){textAreaOutput.append("FileNotFound");}
	    	}
	    }
    	/*****************************	SAVE  AS  *****************************/    
	    if(event.equals("Save As")) {	    	
	    	JFileChooser fileChooser=new JFileChooser();
			fileChooser.setDialogTitle("SaveAs");
			int alert = fileChooser.showSaveDialog(mainFrame);
			if(alert == JFileChooser.APPROVE_OPTION) {
				try {
		    		tmaintext = textAreaFile.getText();
		    		filetitle = fileChooser.getSelectedFile().getName();
		    		dir=fileChooser.getSelectedFile().getParent();
		    		File file = new File(dir,filetitle);
		    		System.out.println("Path of File"+file.getPath());
		    		mainFrame.setTitle(filetitle+title);
		    		//fileChooser.setCurrentDirectory(file);
		    		FileOutputStream fos=new FileOutputStream(file);
		    		for(int ii=0;ii<tmaintext.length();ii++) {
		    			fos.write((byte)tmaintext.charAt(ii));
		    		}
		    		fos.close();
		    		System.out.println("In Save 1");	    		
    			}catch(Exception ef){}
    		}	    	
    		else if(alert==JFileChooser.CANCEL_OPTION) {
    			System.out.println("Save As Canceled");
    		}