import javax.swing.*; import java.awt.event.*; public class Debugging3MaS extends JApplet { //Declare components JLabel programmerLabel = new JLabel("Programmed by Your Name"); JTextField numberTextField = new JTextField(5); JPanel mainPanel = new JPanel(); JButton pressMeButton = new JButton("Press Me"); JTextArea outputTextArea = new JTextArea(3, 30); //Declare global variables float answerFloat; float numberFloat; public void init() { setContentPane(mainPanel); mainPanel.add(programmerLabel); mainPanel.add(new JLabel("Enter a whole number: ")); mainPanel.add(numberTextField); mainPanel.add(pressMeButton); mainPanel.add(outputTextArea); numberTextField.requestFocus(); pressMeButton.addActionListener(this); } public void actionPerformed(ActionEvent event) { //Multiply the number entered by 2 and display the result numberFloat = numberTextField.getText(); calculateAnswer(); outputTextArea.setText("The number doubled is " + answerFloat); } public void calculateAnswer() { //calculate 2 times the entered number float answerFloat = 0; answerFloat = numberFloat * 2; } } Stanley

whts the output actually...??? i think.... outputTextArea.setText("The number doubled is " + answerFloat); keep tht output in calculateAnswer() function and try... ravi

For one, the line... numberFloat = numberTextField.getText(); attemps to put a String into a float, you'll have to write an algorythm that converts the String to a float, or use some prewritten function that I don't know about. Also, you're overloading the answerFloat variable in caluculateAnswer(), so it is always returning 0. Remove the line, float answerFloat = 0; in calculateAnswer(). I wouldn't recomend using global variables for this program, just pass and return values. ~Ben;

Sorry, some corrections... You are re-declaring answerFloat in the function, so it is loosing scope once it leaves that function, but still remove the line float answerFloat = 0; in calculateAnswer() ~Ben;