AAArrggg help plz

[khurm]

hey im completly new to java and one of my assignments is to anlalize some text and make like a word counter program.

import java.awt.*;
import java.awt.event.*;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;

import javax.swing.*;

public class text_analysis extends JPanel implements ActionListener {

JPanel board; // Panel for buttons
JPanel canvas; // Panel for drawing on
JPanel text; // Panel for the text
JButton analyze;
JButton reset;
JTextArea textinput;
JScrollPane areaScrollPane;

public text_analysis() {

super(true); // Call constructor of parent

// Standard layout (flow)
setLayout(new FlowLayout());

// Set up two panels, control board and canvas
board = new JPanel(true);
canvas = new JPanel(true);
text = new JPanel(new BorderLayout());
board.setPreferredSize(new Dimension(200, 80));
canvas.setPreferredSize(new Dimension(300, 300));
board.setBorder(BorderFactory.createLineBorder(Col or.black));
canvas.setBorder(BorderFactory.createLineBorder(Co lor.blue));

// Create buttons and attach listeners
analyze = new JButton("Analyze");
analyze.addActionListener(this);
reset = new JButton("Reset");
reset.addActionListener(this);

//Create an editor pane.
textinput = new JTextArea();
textinput.setLineWrap(true);
textinput.setWrapStyleWord(true);
areaScrollPane = new JScrollPane(textinput);
areaScrollPane.setVerticalScrollBarPolicy(
JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
areaScrollPane.setPreferredSize(new Dimension(250, 250));
areaScrollPane.setBorder(
BorderFactory.createCompoundBorder(
BorderFactory.createCompoundBorder(
BorderFactory.createTitledBorder("Text Input"),
BorderFactory.createEmptyBorder(5,5,5,5)),
areaScrollPane.getBorder()));
text.add(areaScrollPane,BorderLayout.CENTER);

add(canvas);
add(board);
board.add(analyze);
board.add(reset);
add(text, BorderLayout.LINE_START);

}

public void actionPerformed(ActionEvent e, String fName, BufferedReader in ) throws IOException {

// Called when a button is pressed
// Set current working colour, depending on button
long numChar = 0;
long numLine=0;
long numWords = 0;
//Graphics g1 = canvas.getGraphics();
String input = textinput.getText();
System.out.println(input);
do{
input = in.readLine();
if (input != null){
numChar += input.length();
numWords += wordcount(input);
numLine++;
}
}while(input != null);
System.out.println("File Name: " + fName);
System.out.println("Number of characters: " + numChar);
System.out.println("Number of words: " + numWords);
System.out.println("Number of Lines: " + numLine);
}


public void actionPerformed(String fileName){
BufferedReader in = null;
try{
FileReader fileReader = new FileReader(fileName);
in = new BufferedReader(fileReader);
actionPerformed(fileName,in);
}
catch(IOException e){
e.printStackTrace();
}
}
private static long wordcount(String line){
long numWords = 0;
int index = 0;
boolean prevWhiteSpace = true;
while(index < line.length()){
char c = line.charAt(index++);
boolean currWhiteSpace = Character.isWhitespace(c);
if(prevWhiteSpace && !currWhiteSpace){
numWords++;
}
prevWhiteSpace = currWhiteSpace;
}
return numWords;
}




if (e.getSource().equals(reset))
{
textinput.setText(null);
}



public static void main(String[] args) {
long numChar = 0;
long numLine=0;
String input;
// Create a text_analysis entity
text_analysis b = new text_analysis();

try{
if (args.length == 0)
{
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
input = in.readLine();
numChar = input.length();
if (numChar != 0){
numLine=1;
}
System.out.println("Number of characters: " + numChar);
System.out.println("Number of words: " + wordcount(input));
System.out.println("Number of lines: " + numLine);
}else{
for(int i = 0; i < args.length; i++){
actionPerformed(args[i]);
}
}
}
catch(IOException e){
e.printStackTrace();
}
// Set up outer frame, and its exit behaviour
JFrame frame = new JFrame("Text Analysis");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOS E);

// Set the main content frame to be the Blob,
// size the frame (pack) and make it visible
frame.setContentPane(b);
frame.pack();
frame.setVisible(true);

}
}



This is what i got so far but have had problem after problem trying to come up with the correct code. It is an assignment that is in very soon and i just can't get my head around it. If anyone can help it would be very much appreciated.

[masijade]

Well, what, exactly, is the problem? I am not going to play both compiler and JVM and try to figure it out.

[JosAH]

public class text_analysis extends JPanel implements ActionListener {
...

public void actionPerformed(ActionEvent e, String fName, BufferedReader in ) throws IOException { ... }
...
public void actionPerformed(String fileName){ ... }
...
// somewhere in main:
...
for(int i = 0; i < args.length; i++){
   actionPerformed(args[i]);
}

Can you explain this mess? It doesn't make sense. Read the API documentation for the ActionListener interface.

kind regards,

Jos

[Eranga]

If you comes with an error please send it here to see. Without such details it's really hard to comment.

From where this comes from?

    if(e.getSource().equals(reset)) {
        textinput.setText(null);
    }

And also I'm mess-up with the actionPerformed().

Please use a different color next time. It's really hard to read your post. And also please use code tags.