Create fileexplorer.java

fileexplorer.java

@@ -0,0 +1,206 @@
+import java.io.*;  
+import java.awt.*;  
+import java.awt.event.*;  
+import javax.swing.*;  
+import javax.swing.tree.*;  
+/***********************************/  
+class Explorer extends JPanel implements ActionListener  
+{  
+JTextField jtf;  
+JTextArea jta;  
+JTree tree;  
+JButton refresh;  
+JTable jtb;  
+JScrollPane jsp;  
+JScrollPane jspTable;  
+
+String currDirectory=null;  
+
+final String[] colHeads={"File Name","SIZE(in Bytes)","Read Only","Hidden"};  
+String[][]data={{"","","","",""}};  
+
+/////////////////////////////////  
+Explorer(String path)  
+{  
+
+jtf=new JTextField();  
+jta=new JTextArea(5,30);  
+refresh=new JButton("Refresh");  
+
+File temp=new File(path);  
+DefaultMutableTreeNode top=createTree(temp);  
+
+//if(top!=null)  
+
+tree=new JTree(top);  
+
+jsp=new JScrollPane(tree);  
+
+final String[] colHeads={"File Name","SIZE(in Bytes)","Read Only","Hidden"};  
+String[][]data={{"","","","",""}};  
+jtb=new JTable(data, colHeads);  
+jspTable=new JScrollPane(jtb);  
+
+setLayout(new BorderLayout());  
+add(jtf,BorderLayout.NORTH);  
+add(jsp,BorderLayout.WEST);  
+add(jspTable,BorderLayout.CENTER);  
+add(refresh,BorderLayout.SOUTH);  
+
+tree.addMouseListener(  
+new MouseAdapter()  
+{  
+public void mouseClicked(MouseEvent me)  
+{  
+doMouseClicked(me);  
+}  
+});  
+jtf.addActionListener(this);  
+refresh.addActionListener(this);  
+}  
+///////////////////////////////  
+public void actionPerformed(ActionEvent ev)  
+{  
+File temp=new File(jtf.getText());  
+DefaultMutableTreeNode newtop=createTree(temp);  
+if(newtop!=null)  
+    tree=new JTree(newtop);  
+remove(jsp);  
+jsp=new JScrollPane(tree);  
+setVisible(false);  
+add(jsp,BorderLayout.WEST);  
+tree.addMouseListener(  
+new MouseAdapter()  
+{  
+public void mouseClicked(MouseEvent me)  
+{  
+doMouseClicked(me);  
+}  
+});  
+
+setVisible(true);  
+}  
+//////////////////////////////  
+
+DefaultMutableTreeNode createTree(File temp)  
+{  
+DefaultMutableTreeNode top=new DefaultMutableTreeNode(temp.getPath());  
+if(!(temp.exists() && temp.isDirectory()))  
+    return top;  
+
+fillTree(top,temp.getPath());  
+
+return top;  
+}  
+//////////////////////////////  
+void fillTree(DefaultMutableTreeNode root, String filename)  
+{  
+File temp=new File(filename);  
+
+if(!(temp.exists() && temp.isDirectory()))  
+    return;  
+//System.out.println(filename);  
+File[] filelist=temp.listFiles();  
+
+for(int i=0; i<filelist.length; i++)  
+{  
+if(!filelist[i].isDirectory())  
+    continue;  
+final DefaultMutableTreeNode tempDmtn=new DefaultMutableTreeNode(filelist[i].getName());  
+root.add(tempDmtn);  
+final String newfilename=new String(filename+"\\"+filelist[i].getName());  
+Thread t=new Thread()  
+{  
+public void run()  
+{  
+fillTree(tempDmtn,newfilename);  
+}//run  
+};//thread  
+if(t==null)   
+    {System.out.println("no more thread allowed "+newfilename);return;}  
+t.start();  
+}//for  
+}//function  
+//////////////////////////////  
+void doMouseClicked(MouseEvent me)  
+{  
+TreePath tp=tree.getPathForLocation(me.getX(),me.getY());  
+if(tp==null) return;  
+//jtf.setText(tp.toString());  
+String s=tp.toString();  
+s=s.replace("[","");  
+s=s.replace("]","");  
+s=s.replace(", ","\\");  
+//s=s.replace(" ","");  
+//int z=s.lastIndexOf("\"\\\"");  
+//s="\'"+s; s=s+"\'";  
+jtf.setText(s);  
+showFiles(s);  
+//java.util.StringTokenizer st=new java.util.StringTokenizer(s,",");  
+//jtf.setText(jtf.getText()+"="+s);  
+
+}  
+////////////////////////////////  
+void showFiles(String filename)  
+{  
+File temp=new File(filename);  
+data=new String[][]{{"","","",""}};  
+remove(jspTable);  
+jtb=new JTable(data, colHeads);  
+jspTable=new JScrollPane(jtb);  
+setVisible(false);  
+add(jspTable,BorderLayout.CENTER);  
+setVisible(true);  
+
+if(!temp.exists()) return;  
+if(!temp.isDirectory()) return;  
+
+//System.out.println(filename);  
+File[] filelist=temp.listFiles();  
+int fileCounter=0;  
+data=new String[filelist.length][4];  
+for(int i=0; i<filelist.length; i++)  
+{  
+if(filelist[i].isDirectory())  
+    continue;  
+data[fileCounter][0]=new String(filelist[i].getName());  
+data[fileCounter][1]=new String(filelist[i].length()+"");  
+data[fileCounter][2]=new String(!filelist[i].canWrite()+"");  
+data[fileCounter][3]=new String(filelist[i].isHidden()+"");  
+fileCounter++;  
+}//for  
+
+String dataTemp[][]=new String[fileCounter][4];  
+for(int k=0; k<fileCounter; k++)  
+    dataTemp[k]=data[k];  
+data=dataTemp;  
+
+//System.out.println(data);  
+remove(jspTable);  
+jtb=new JTable(data, colHeads);  
+jspTable=new JScrollPane(jtb);  
+setVisible(false);  
+add(jspTable,BorderLayout.CENTER);  
+setVisible(true);  
+}  
+////////////////////////////////  
+///////////////////////////////  
+}  
+/***********************************/  
+class ExplorerTest extends JFrame  
+{  
+
+ExplorerTest(String path)  
+{  
+super("Windows Exploder - Javatpoint");  
+add(new Explorer(path),"Center");  
+setDefaultCloseOperation(EXIT_ON_CLOSE);  
+setSize(400,400);  
+setVisible(true);  
+}  
+
+public static void main(String[] args)  
+{  
+new ExplorerTest(".");  
+}  
+}