Java code statistics Tool

 

The Code statistics tool is not very functional. You are welcome to give more comments.

Import java. awt. event. ActionEvent;

Import java. awt. event. ActionListener;

Import java. io. BufferedReader;

Import java. io. File;

Import java. io. FileNotFoundException;

Import java. io. FileReader;

Import java. io. IOException;

Import javax. swing. JFileChooser;

Import javax. swing. JFrame;

Import javax. swing. JMenu;

Import javax. swing. JMenuBar;

Import javax. swing. JMenuItem;

Import javax. swing. JScrollPane;

Import javax. swing. JTextArea;

Import javax. swing. UIManager;

 

Public class CodeCounterFrame extends JFrame

{

JMenuBar menuBar = new JMenuBar ();

JMenu fileMenu = new JMenu ("file ");

JMenuItem openMenuItem = new JMenuItem ("open ");

JTextArea txa = new JTextArea ();

JScrollPane jsp = new JScrollPane (txa );

String output = "";

Static long codeLines = 0;

Static long commentLines = 0;

Static long blankLines = 0;

Public CodeCounterFrame ()

{

This. setJMenuBar (menuBar );

MenuBar. add (fileMenu );

FileMenu. add (openMenuItem );

Txa. setEditable (false); // contents in txa cannot be edited.

Add (jsp );

// Internal anonymous listener

OpenMenuItem. addActionListener (new ActionListener ()

{

Public void actionreceivmed (ActionEvent e)

{

If (e. getSource () = openMenuItem)

{

// Click Open menu

// Pop-up file Selector

JFileChooser chooser = new JFileChooser ();

Chooser. showOpenDialog (null );

// Obtain the selected file

File selectedFile = chooser. getSelectedFile ();

BufferedReader br = null;

Boolean flag = false;

Try {

FileReader reader = new FileReader (selectedFile); // read the document content

Br = new BufferedReader (reader );

String line = "";

// 2 read the file

While (line = br. readLine ())! = Null)

{

Line = line. trim (); // remove the space before the Annotation

If (line. matches ("^ [] * $ "))

{

// Match empty rows

BlankLines ++;

}

Else if (line. startsWith ("//"))

{

CommentLines ++;

}

Else if (line. startsWith ("/*")&&! Line. endsWith ("*/"))

{

CommentLines ++;

Flag = true;

}

Else if (line. startsWith ("/*") & line. endsWith ("*/"))

{

CommentLines ++;

}

Else if (flag = true)

{

CommentLines ++;

If (line. endsWith ("*/"))

{

Flag = false;

}

}

Else

{

CodeLines ++;

}

}

 

// Save the result to output

Output + = ("code lines:" + codeLines + "\ n" + "comment lines:" + commentLines + "\ n"

+ "Number of blank lines:" + balancer lines + "\ n" + "Total number of lines:" + (codeLines + commentLines + balancer lines ));

// Display the statistical result in txa

Txa. setText (output );

}

Catch (FileNotFoundException ex)

{

Ex. printStackTrace ();

}

Catch (IOException ex)

{

Ex. printStackTrace ();

}

Finally

{

If (br! = Null)

{

Try {

Br. close ();

Br = null;

}

Catch (IOException ex)

{

Ex. printStackTrace ();

}

}

}

}

}

});

}

// Frame main program

Public static void main (String [] args)

{

Try {

UIManager. setLookAndFeel ("com. sun. java. swing. plaf. windows. WindowsLookAndFeel"); // windows interface style

} Catch (Exception e ){

E. printStackTrace ();

}

CodeCounterFrame frame = new CodeCounterFrame ();

Frame. setTitle ("small tool for code Statistics ");

Frame. setSize (300,200 );

Frame. setVisible (true );

Frame. setLocationRelativeTo (null); // The center of the form is displayed.

Frame. setdefaclocloseoperation (JFrame. EXIT_ON_CLOSE );

}

}

Run window:

 

Output result: