Thread: Random Color Ball and Move Bottom Bar Vector Java Help

Hi,
I created this simple vector java program where ball falling and when collide with the bar below, the ball stops.
I need to make the ball falling randomly from different direction and also need to make the bar move left right using keyboard arrow.
Can anyone help me with this:
Code:

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
 
//using timer to increase the counter
public class Ball extends JFrame implements ActionListener{
	int xSpeed=0;//moving speed
	int x,y;//ball location
 
    Rectangle blockRect;
    Rectangle ballRect;
 
	Timer time;
 
 
	public Ball(String title){
		super(title);
 
		xSpeed=5;//moving 5 pixels for every second
		x=400;
		y=100;//center of the screen
 
		//Instantiate the timer
		time=new Timer(100,this);//o.5 second
		time.start();//start the timer
 
		blockRect = new Rectangle(350,400,150,70);
 
 
		setSize(800,600);
		setVisible(true);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
 
 
	//timer method
	public void actionPerformed(ActionEvent e){
		y=y+xSpeed;//make the move horizontally
		repaint();
 
		if(y> this.getWidth()){
			y=25;
		}
	}
 
	public void paint(Graphics g){
		Graphics2D g2d=(Graphics2D) g;
 
		//erase the all record
		Rectangle rect=new Rectangle(0,0,800,600);
		g2d.setColor(Color.WHITE);
		g2d.fill(rect);
 
		g2d.setColor(Color.CYAN);
 
		//draw the circle here
		g2d.fillOval(x,y,25,25);
 
		ballRect = new Rectangle(x,y,30,30);
 
		if (blockRect.intersects(ballRect))
			xSpeed = 0;//stop movement
 
 
		g2d.setColor(Color.BLACK);
		g2d.fillRect(350,400,150,70);
 
 
	}
 
 
	public static void main(String args[]){
		new Ball("Animated Ball");
	}
}

Thank you for reply. How can I edit this ball so that the ball falls in random color and from different direction. my current code is:

public Ball(String title){
super(title);

xSpeed=5;//moving 5 pixels for every second
x=400;
y=100;//center of the screen

//Instantiate the timer
time=new Timer(100,this);//o.5 second
time.start();//start the timer

thank you Norm but I am new in Java. Anyway I will try to make changes and come back. It will take some days for sure.

Hi,
I have created a small game in java.
Screen Shot 2014-02-21 at 7.41.09 PM.jpg
I have a ball falling but I want the ball to fall randomly with randomly color. In my case its falling only once.
I want the ball to collide with the rectangle bar and stop. I will catch random balls falling using the rectangle bar. Problem is ball passed the rectangle and not colliding.
Here is the code. Can anyone help me finish this project:

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.util.Random.*;
 
//using timer to increase the counter
public class Ball extends JFrame implements ActionListener, KeyListener{
	int xSpeed=0;//moving speed
	int x,y;//ball location
	int x1,y1; //rectangle (basket)
	int score;
 
    Rectangle blockRect;
    Rectangle ballRect;
    //Random rand = new Random;
	Timer time;
 
 
	public Ball(String title){
		super(title);
 
		xSpeed=5;//moving 5 pixels for every second
		x=400;
		y=100;//center of the screen
 
		x1= 325;
		y1= 500;
		//Instantiate the timer
		time=new Timer(100,this);//o.5 second
		time.start();//start the timer
 
		blockRect = new Rectangle(350,400,150,70);
 
		addKeyListener(this);
 
		setSize(800,600);
		setVisible(true);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
 
 
	//timer method
	public void actionPerformed(ActionEvent e){
		y=y+xSpeed;//make the move horizontally
		repaint();
 
		if(y> this.getWidth()){
			y=25;
		//if (blockRect.intersects(ballRect))
			//x =  ;//stop movement
			score +=1;
 
		}
	}
 
	public void paint(Graphics g){
		Graphics2D g2d=(Graphics2D) g;
 
		//erase the all record
		Rectangle rect=new Rectangle(0,0,800,600);
		g2d.setColor(Color.BLACK);
		g2d.fill(rect);
 
		g2d.setColor(Color.CYAN);
 
		//draw the circle here
		g2d.fillOval(x,y,25,25);
 
		ballRect = new Rectangle(x1,y1,30,30);
 
 
 
		g2d.setColor(Color.RED);
		g2d.fillRect(x1,y1,150,40);
		g2d.drawString("Score:" +score,500,50);
 
 
	}
 
 
    public void left() {
 
        x1-=5;
    }
 
    public void right() {
 
        x1 +=5;;   
    }
 
 
 
    /** Handle the key-released event from the text field. */
    public void keyReleased(KeyEvent e) 
    	{}
    public void keyTyped(KeyEvent e) 
    	{}
 
 
    public void keyPressed(KeyEvent e) 
    	{
        if (e.getKeyCode()==KeyEvent.VK_LEFT){
        	left();
        	System.out.println("Left:"+x1);
 
        }
 
        if (e.getKeyCode()==KeyEvent.VK_RIGHT){
        	  right();
        	  System.out.println("Left:"+x1);
        }
 
    }
 
 
	public static void main(String args[]){
		new Ball("Animated Ball");
	}
}

OK. How can I make the ball fall randomly with multiple color from different direction?