import java.awt.Color; import java.awt.GridLayout; import java.awt.event.*; impo

ID: 3794572 • Letter: I

Question

import java.awt.Color;
import java.awt.GridLayout;
import java.awt.event.*;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;

class Cell extends JButton {

private static final int NUM_COLOURS = 3;

private ImageIcon[] icons;
private int type;

public Cell() {
ImageIcon[] icons;

   icons = new ImageIcon[NUM_COLOURS];
   for (int i=0; i<NUM_COLOURS; i++) {
   icons[i] = new ImageIcon("data/ball-" + Integer.toString(type) + ".png");
   }

   this.type = 0;
   setBackground(Color.WHITE);
   setIcon();
   setBorderPainted(false);
}

private void setIcon() {
setIcon(icons[type]);
}

public void update() {
   type = type + 1;
   setIcon();
}

}

public class App extends JFrame implements ActionListener {

private Cell myCell;

public App() {
   setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   myCell = new Cell();
   myCell.addActionListener(this);
   add(myCell);
   pack();
   setVisible(true);
}

public void actionPerformed(ActionEvent e) {
   myCell.update();
}

public static void main(String[] args) {
   new App();
}

}

Explanation / Answer

:- class App is public,should be declared in a file named App.java

public class app extends JFrame implements ActionListener { // go through line 32

:- and there is unexpected token error in a package import java.awt.color..it is an unexpected import

:- and stdin nd stdout(standar input and output is empty..

:- public class not found to execute...

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import java.awt.Color; import java.awt.Graphics; public class Box { private int

import java.awt.Color; public enum ToppingType {} This is an enum hat contains t

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import java.awt.Color; import java.awt.GridLayout; import java.awt.event.*; impo

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