myzip.java

Myzip a soft ware by java which make a file to zip or jar

								  zout.putNextEntry(ze);
									zout.closeEntry();
								}
								tmpzf.close();
							  zout.close();
								zin.close();
								File tmpfile = new File(zipname);
								String tmpname = tmpfile.getPath();
								System.out.println(tmpfile.delete());
								tmpzip.renameTo(new File(tmpname));
							}
							catch(IOException e)
							{
								System.out.println(e);
							}


	}
 public String addFile()
	{
	  		 String entryname = "" ;
				 String fullname = "";	
				 JFileChooser chooser = new JFileChooser();
				 chooser.setCurrentDirectory(new File("C:\\"));
				 BufferedInputStream bin = null;
				 BufferedOutputStream bout = null;
				 ZipOutputStream zout = null;
				 ZipInputStream zin = null;
				 File tmpzip = null;
				 chooser.setFileFilter(new javax.swing.filechooser.FileFilter()
					{  
					   public boolean accept(File f)
							{
							
									 return true;
							}
					   public String getDescription()
							{
							   return "*.*";
							}
					});
				 int r = chooser.showOpenDialog(MainForm.this);
				 if(r==JFileChooser.APPROVE_OPTION)
					{
					    fullname  = chooser.getSelectedFile().getPath();
							try
							{
							  tmpzip = File.createTempFile("zip",".tmp",new File(".\\"));
							  bin = new BufferedInputStream(new FileInputStream(fullname)); 
								zin = new ZipInputStream(new FileInputStream(zipname));
								zout = new ZipOutputStream(new FileOutputStream(tmpzip));
								ZipEntry ze;
								int len = 0;
								byte[] b = new byte[10240];
								while((ze=zin.getNextEntry())!=null)
								{
								    zout.putNextEntry(new ZipEntry(ze.getName()));
										
										while((len=zin.read(b))!=-1)
										{
										  zout.write(b,0,len);
										}
										zout.closeEntry();
										zin.closeEntry();
								}
								ze = new ZipEntry(new File(fullname).getName());
								zout.putNextEntry(ze);
								while((len = bin.read(b))!=-1)
								{
								  zout.write(b,0,len);
								}
								
								zout.closeEntry();
								bin.close();
							  zout.close();
								zin.close();
								File tmpfile = new File(zipname);
								String tmpname = tmpfile.getPath();
								tmpfile.delete();
								tmpzip.renameTo(new File(tmpname));
							}
							catch(IOException e)
							{
							  
							}

					   return new File(fullname).getName();
					}
			   else
				  {
				     return "";
				  }
	}
	public void initMenu()
	{
		m1.add(NewItem);
		NewItem.setToolTipText("Create New Zip file");
		m1.add(OpenItem);
		OpenItem.setToolTipText("Open Zip file");
		m1.add(CloseItem);
		CloseItem.setToolTipText("Close Zip file");
		m1.addSeparator();
		m1.add(ExitItem);
		ExitItem.setToolTipText("Exit");
		mb.add(m1);
		NewItem.addActionListener(new ActionListener()
		{
		  public void actionPerformed(ActionEvent e)
			{
			  newZipFile();
			}
		}
		);
		CloseItem.addActionListener(new ActionListener()
		{
		  public void actionPerformed(ActionEvent e)
			{
			 zipname = null;
			 removeRows();
			 }
		}
		);
    ExitItem.addActionListener(new ActionListener()
		{
		  public void actionPerformed(ActionEvent e)
			{
				System.exit(0);
      }		
		}
		);
			OpenItem.addActionListener(new ActionListener()
		{
		  public void actionPerformed(ActionEvent e)
			{
					openZipFile();
					
			}
		});
		
	
		maction.add(madd);
		madd.setToolTipText("Add file to Zip");
		maction.add(mdelete);
		mdelete.setToolTipText("Delete file in Zip");
		maction.add(mextract);
		mextract.setToolTipText("Extract file");
		maction.add(mview);
		mview.setToolTipText("View file");
		mb.add(maction);
    madd.addActionListener(new ActionListener()
		{
		   public void actionPerformed(ActionEvent e)
				{
				  if(zipname!=null)
					{
					  addFile();
						removeRows();
					  scanZipFile(zipname);
					 }
				}
		});
		mextract.addActionListener(new ActionListener()
		{
		  public void actionPerformed(ActionEvent e)
			{
		    if(zipname == null) return;
				if(ed==null)ed  = new ExtractDlg(MainForm.this);
			  Toolkit tk1 = Toolkit.getDefaultToolkit();
				ed.setLocation(new Point((tk1.getScreenSize().width/2)-160,(tk1.getScreenSize().height/2)-125));
		    ed.show();
			}
		});
		mview.addActionListener(new ActionListener()
		{
		   public void actionPerformed(ActionEvent e)
				{
				  if(zipname==null) return;
					if(vd==null)
					{
					  vd =new ViewDlg(); 
	   			 }
					int[] i = table.getSelectedRows();	
					if(i[0]!=-1)
					{
					 
					 vd.viewText(zipname,(String)dm.getValueAt(i[0],0));
					}
				}
		});
	
	 mdelete.addActionListener(new ActionListener()
		{
		  public void actionPerformed(ActionEvent e)
			{
			   int[] i = table.getSelectedRows();
			   if((zipname!=null) && (i!=null) && (i[0]!=1) &&(i[0]<table.getRowCount()))
					{
					deleteZipFile((String)dm.getValueAt(i[0],0));
				  reloadZipFile();	
					}
			}
		});
		muigroup.add(muiwindow);
		muigroup.add(muimetal);
		muigroup.add(muimotif);
		muimetal.setSelected(true);
		muistyle.add(muiwindow);
	  muiwindow.setToolTipText("Windows Style");	
		muistyle.add(muimetal);
		muimetal.setToolTipText("Java Metal Style");	
		muistyle.add(muimotif);
		muimotif.setToolTipText("CDE/Motif Style");	
	  muiwindow.addActionListener(new ActionListener()
		{
		  public void actionPerformed(ActionEvent e)
			{
          String plaf = "com.sun.java.swing.plaf.windows.WindowsLookAndFeel";
	       	try{
		            UIManager.setLookAndFeel(plaf);
                SwingUtilities.updateComponentTreeUI(MainForm.this);
								SwingUtilities.updateComponentTreeUI(ad);
		         }
		      catch(Exception e1)
	        	{
		        }					
			}
		});
	  muimetal.addActionListener(new ActionListener()
		{
		  public void actionPerformed(ActionEvent e)
			{
          String plaf = "javax.swing.plaf.metal.MetalLookAndFeel";
	       	try{
		            UIManager.setLookAndFeel(plaf);
                SwingUtilities.updateComponentTreeUI(MainForm.this);
								SwingUtilities.updateComponentTreeUI(ad);
		         }
		      catch(Exception e2)
	        	{
		        }						
					
			}
		});
	  muimotif.addActionListener(new ActionListener()
		{
		  public void actionPerformed(ActionEvent e)
			{
          String plaf = "com.sun.java.swing.plaf.motif.MotifLookAndFeel";
	       	try{
		            UIManager.setLookAndFeel(plaf);
                SwingUtilities.updateComponentTreeUI(MainForm.this);
								SwingUtilities.updateComponentTreeUI(ad);
		         }
		      catch(Exception e3)
	        	{
		        }						
					
			}
		});		
		mb.add(muistyle);
		mhelp.add(mabout);
		mb.add(mhelp);
		mabout.addActionListener(new ActionListener()
		{
		  public  void actionPerformed(ActionEvent e)
			 {
				 if(ad==null)  
					 {
						 ad = new AboutDlg(MainForm.this);
					 }
				  ad.setVisible(true);
					Toolkit tk = Toolkit.getDefaultToolkit();
					ad.setLocation(new Point((tk.getScreenSize().width/2)-150,(tk.getScreenSize().height/2)-100));
			 }
		}
		);
		setJMenuBar(mb);
		setSize(640,480);	   
	}
	public void reloadZipFile()
	{
	  if(zipname!=null)
		 removeRows();
		 scanZipFile(zipname);
		
	}
	public int getZipedCount(String filename)
  {
	  int count = 0;
		try
		{
		 ZipFile zf = new ZipFile(filename);
		 count = zf.size();
		 zf.close();
		 }
		 catch(IOException e)
			{
			}
		return count;
	}
	public void newZipFile()
	{
			   String fname = "";
				 JFileChooser chooser = new JFileChooser();
				 chooser.setCurrentDirectory(new File("C:\\"));
				 chooser.setFileFilter(new javax.swing.filechooser.FileFilter()
					{  
					   public boolean accept(File f)
							{
							   if(f.getName().toLowerCase().endsWith(".zip") || f.getName().toLowerCase().endsWith(".jar") || f.isDirectory())
									 return true;
								 else
							     return false;
							}
					   public String getDescription()
							{
							   return "zip and jar file";
							}
					});
				 int r = chooser.showOpenDialog(this);
				 if(r==JFileChooser.APPROVE_OPTION)
					{
					   fname = chooser.getSelectedFile().getPath();
						 if(!fname.endsWith(".zip"))
							{
							   fname = fname+".zip";
							}
						 if(new File(fname).exists())
							{
							   int selection = JOptionPane.showConfirmDialog(this,"File "+fname+" already exists overwrite?","Warning!",JOptionPane.YES_NO_OPTION);
							   if(selection==JOptionPane.YES_OPTION)
									{
									  	 zipname = fname;
											 try
												{
												  new File(zipname).delete();
											    new File(zipname).createNewFile();
							          }
											 catch(IOException e)
												{
												}
											 removeRows();
											 return;
									}
								 else
									{
									   return;
									}
							}
							else
							{
							  zipname = fname;
								try
								{
								 new File(zipname).createNewFile();
							  }
								catch(IOException e)
								{
								}
								removeRows();
								return;

							}
					}	  
			}
}

public class MyZip
{
  public static void main(String[] args)
	{
		 MainForm frame = new MainForm();
		 frame.show();
	}
}