import java.util.InputMismatchException;
import java.util.Random;
import java.util.Scanner;



        
public class CelsiusConverterGUI extends javax.swing.JFrame {
    
   long start = System.currentTimeMillis();
  
   int problemCount = 1;

      
   int rndma = new Random().nextInt(12) + 1;
   int rndmb = new Random().nextInt(12) + 1;
    
  
  
  
  
    
    public CelsiusConverterGUI() {
        initComponents();
        problemField.setText(" " + rndma + "x" + rndmb);
        answerField.requestFocusInWindow();
    }
    
    
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        convertButton = new javax.swing.JButton();
        fahrenheitLabel = new javax.swing.JLabel();
        equalSign = new javax.swing.JLabel();
        problemField = new javax.swing.JTextField();
        answerField = new javax.swing.JFormattedTextField();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Converter");

        convertButton.setText("Submit");
        convertButton.setBorder(null);
        convertButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                convertButtonActionPerformed(evt);
            }
        });

        equalSign.setText("=");

        problemField.setEditable(false);
        problemField.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                problemFieldActionPerformed(evt);
            }
        });

        answerField.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));
        answerField.setAutoscrolls(false);
        answerField.addKeyListener(new java.awt.event.KeyAdapter() {
            public void keyPressed(java.awt.event.KeyEvent evt) {
                ENTER(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(fahrenheitLabel, javax.swing.GroupLayout.DEFAULT_SIZE, 145, Short.MAX_VALUE))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(23, 23, 23)
                        .addComponent(problemField, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(equalSign)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(answerField, javax.swing.GroupLayout.PREFERRED_SIZE, 34, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(54, 54, 54)
                        .addComponent(convertButton)))
                .addContainerGap())
        );

        layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {answerField, convertButton, problemField});

        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(problemField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(equalSign)
                    .addComponent(answerField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addComponent(convertButton)
                .addGap(15, 15, 15)
                .addComponent(fahrenheitLabel, javax.swing.GroupLayout.PREFERRED_SIZE, 60, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap())
        );

        layout.linkSize(javax.swing.SwingConstants.VERTICAL, new java.awt.Component[] {answerField, convertButton});

        pack();
    }// </editor-fold>



private void problemFieldActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}

private void convertButtonActionPerformed(java.awt.event.ActionEvent evt) {
//Parse degrees Celsius as a double and convert to Fahrenheit.
  
       // TODO add your handling code here:
}

private void ENTER(java.awt.event.KeyEvent evt) {
int answerFieldinterger2 = (int)((Double.parseDouble(answerField.getText())));
int solution = rndma * rndmb;
boolean correctAns2 = solution == answerFieldinterger2;
    
      
        
    if(correctAns2){fahrenheitLabel.setText("Correct!");
                        answerField.setText("");
                        problemCount ++;
       } else { long elapsed = System.currentTimeMillis() - start;
                fahrenheitLabel.setText(" " + elapsed/1000f + "seconds");}
}

    /**
    * @param args the command line arguments
    */
  
public static void main(String args[]) {
      
    java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new CelsiusConverterGUI().setVisible(true);
            }
        });
        
        
    }

    // Variables declaration - do not modify
    private javax.swing.JFormattedTextField answerField;
    private javax.swing.JButton convertButton;
    private javax.swing.JLabel equalSign;
    private javax.swing.JLabel fahrenheitLabel;
    private javax.swing.JTextField problemField;
    // End of variables declaration

}

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.*;


public class SimpleQuestionAnswer extends JFrame implements ActionListener {

    String[] question = {"Question 1", "Question 2", "Question 3"};
    JLabel qLabel;
    JTextField answer;
    JButton ok;
    int count = 0;
    
    SimpleQuestionAnswer() {
        super("FirstGui");
        setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        
        JPanel p = new JPanel(new GridLayout(1,2));
        p.add(new JLabel(" The question is: "));
        qLabel = new JLabel(question[count]);
        p.add(qLabel);
        add(p, BorderLayout.NORTH);
        
        p = new JPanel(new GridLayout(1,2));
        p.add(new JLabel("Enter your answer here: "));
        answer = new JTextField("");
        p.add(answer);
        add(p, BorderLayout.CENTER);
        
        ok = new JButton("OK");
        ok.addActionListener(this);
        add(ok, BorderLayout.SOUTH);
        
        setSize(300, 100);
        setVisible(true);
        
    }

    // invoked when the user click the button
    public void actionPerformed(ActionEvent arg0) {
        // check the answer
        // ....
        
        count++;
        if(count >= question.length) {
            qLabel.setText(" you're done");
            ok.setEnabled(false);
            return;
        }
        qLabel.setText(question[count]);
        answer.setText("");
    }
    
    
    public static void main(String[] arg) {
        new SimpleQuestionAnswer();
    }
    
}