I am having difficulty doing the following Implement the overridden method paint
ID: 3667093 • Letter: I
Question
I am having difficulty doing the following
Implement the overridden method paintComponent so that it paints a tall building with multiple rows of windows.
Requirements:
1.Use for loops to draw the windows.
2.Use random colors (every time the building is repainted some of the colors change randomly. Which of the areas change is up to you.
with this code:
package labBuilding;
import javax.swing.JFrame;
@SuppressWarnings("serial")
public class BuildingApp extends JFrame {
public static void main(String[] args) {
new BuildingApp().run();
}
public void run() {
setBounds(100, 10, 400, 500);
setDefaultCloseOperation(EXIT_ON_CLOSE);
add(new Building());
setVisible(true);
}
}
import java.awt.Graphics;
import javax.swing.JPanel;
@SuppressWarnings("serial")
public class Building extends JPanel {
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
// TODO: write code to draw the building
}
}
Explanation / Answer
// header files
import javax.swing.JFrame;
@SuppressWarnings("serial")
public class BuildingApp extends JFrame
{
public static void main(String[] args)
{
new BuildingApp().run();
}
// call defined run function
public void run()
{
setBounds(100, 10, 400, 700);
setDefaultCloseOperation(EXIT_ON_CLOSE);
add(new Building());
setVisible(true);
}
}
Building.java
//header files
import java.awt.Color;
import java.awt.Graphics;
import java.util.Random;
import javax.swing.JPanel;
@SuppressWarnings("serial")
public class Building extends JPanel
{
private final Color[] colors = {Color.YELLOW, Color.BLACK};
private final Random rand = new Random();
@Override
protected void paintComponent(Graphics g)
{
super.paintComponent(g);
setBackground(Color.CYAN);
g.setColor(Color.GREEN);
g.fillRect(0, 600, 400, 100);
g.setColor(Color.YELLOW);
g.fillOval(340, 10, 50, 50);
g.setColor(Color.GRAY);
g.fillRect(100, 100, 200, 550);
g.setColor(Color.DARK_GRAY);
g.fillRect(175, 575, 50, 75);
g.setColor(Color.CYAN);
for(int i = 0; i < 9; i++)
{
for(int j = 0; j < 4 ;j++)
{
g.setColor(colors[rand.nextInt(colors.length)]);
g.fillRect(63 + (j+1)*50, 63 + (i+1)*50, 25, 25);
g.setColor(Color.DARK_GRAY);
g.fillRect(75 + (j+1)*50, 63 + (i+1)*50, 2, 25);
g.fillRect(63 + (j+1)*50, 75 + (i+1)*50, 25, 2);
}
}
}
}
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.