Hello, newbie here...
I'm writing this program but when I click the start button which should initiate either the Hare or the Tortoise, it does not, this is the first time I use threads, so the problem might be the way I'm passing the value.
can someone please take a look at this code and maybe give me some guidance on what I'm doing wrong.
Please note there are 3 separate files with the corresponding classes, I separated it with ===>
Thank You
JC
I'm writing this program but when I click the start button which should initiate either the Hare or the Tortoise, it does not, this is the first time I use threads, so the problem might be the way I'm passing the value.
can someone please take a look at this code and maybe give me some guidance on what I'm doing wrong.
Please note there are 3 separate files with the corresponding classes, I separated it with ===>
Thank You
JC
Code:
package turtoiseandhare;
import java.awt.*;
import java.*;
import javax.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.accessibility.*;
import java.util.*;
import java.awt.event.*;
public class TurtoiseAndHare extends JFrame
{
private ImageIcon hare;
private ImageIcon tortoise;
private ImageIcon start;
private ImageIcon finish;
int turtle_x = 0;
int turtle_y = 159;
int hare_x = 0;
int hare_y = 35;
int ha_w;
int ha_h;
int to_w;
int to_h;
float fastplod;
float slip;
float slowplod;
float sleep;
float bighop;
float bigslip;
float smallhop;
float smallslip;
Display p;
Move mo;
TnHThread tornhare;
Button StartB;
Button Stop;
String message = "Who will win this amazing race!";
public TurtoiseAndHare()
{
setTitle ("Tortoise and the Hare race!");
setSize(1000, 405);
mo = new Move(this);
Container contentPane = this.getContentPane();
getContentPane().setLayout(new BorderLayout());
p = new Display();
JPanel q = new JPanel();
q.setBorder(BorderFactory.createLineBorder(Color.BLUE));
StartB = new Button(" Start ");
q.add(StartB);
JPanel m = new JPanel();
m.setBorder(BorderFactory.createLineBorder(Color.BLUE));
m.setBackground(Color.getHSBColor(25,55,45));
JLabel msg = new JLabel(message);
m.add(msg);
hare = new ImageIcon(getClass().getResource("hare.jpg"));
tortoise = new ImageIcon(getClass().getResource("Turtle.jpg"));
start = new ImageIcon(getClass().getResource("start.jpg"));
finish = new ImageIcon(getClass().getResource("finish.jpg"));
contentPane.add(p, BorderLayout.CENTER);
contentPane.add(q, BorderLayout.SOUTH);
contentPane.add(m, BorderLayout.NORTH);
Handler handler = new Handler();
StartB.addActionListener(handler);
}
class Display extends Canvas
{
public void paint(Graphics g)
{
ha_w = hare.getIconWidth();
ha_h = hare.getIconHeight();
to_w = tortoise.getIconWidth();
to_h = tortoise.getIconHeight();
// super.paint(g);
for (int i = 0; i < 780; i++)
{
tortoise.paintIcon(p, g, i+5, turtle_y);
};
tortoise.paintIcon(p, g, turtle_x, turtle_y);
hare.paintIcon(p, g, hare_x, hare_y);
start.paintIcon(p, g, 125, 0);
finish.paintIcon(p, g, 850, 0);
g.drawString(message,170,55);
}
} //end of Display
public void raicing(int animal, int x, int y)
{
if (animal == 1)
{
hare_x = x;
hare_y = y;
message = "the hare is at position " + hare_x;
}
if (animal == 2)
{
turtle_x = x;
turtle_y = y;
message = "The Turtoise is at position " + turtle_x;
}
p.repaint();
}//END of Raicing
public static void main(String[] args)
{
// TODO Auto-generated method stub
TurtoiseAndHare myrace = new TurtoiseAndHare();
myrace.setVisible(true);
myrace.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}//END of Main
class Handler implements ActionListener
{
public void actionPerformed (ActionEvent e)
{
int send;
Random startNo = new Random();
send = 1 + startNo.nextInt(2);
//start button was pressed
if (send == 1)
{
TnHThread h = new TnHThread(send,mo);
h.start();
}
else if (send == 2)
{
TnHThread t = new TnHThread(send,mo);
t.start();
}
}
}
}
==================================>
MOVE class
package Tortoiseandhare;
import java.util.Random;
public class Move {
private boolean lock = true; //1st
TortoiseAndHare frame;
public Move(TortoiseAndHare fr) {frame = fr;}
public void moving(int animal, int hare_x, int hare_y)
{
if (animal == 1)moving_hare(animal, hare_x, hare_y);
if (animal == 2)moving_Tortoise(animal, hare_x, hare_y);
}//End of moving
public void moving_hare(int animal, int hare_x, int hare_y)
{
hare_start();
go(animal, hare_x, hare_y);
hare_stop();
}//End of Moving_hare
public synchronized void hare_start()
{
while (lock == false)
{
try
{
wait();
}
catch (InterruptedException e)
{
System.out.println("Interrupted Exception on the hare");
}
}//End Of while
lock = false;
notifyAll();
}//END of Synch hare_start
public synchronized void hare_stop()
{
lock = true; //3rd
notifyAll();
}//END of hare_stop
public void moving_Tortoise(int animal, int hare_x, int hare_y)
{
Tortoise_start();
go(animal, hare_x, hare_y);
Tortoise_stop();
}//end of Tortoise_start
public synchronized void Tortoise_start()
{
while (lock == false) //7th
{
try
{
wait();
}
catch(InterruptedException e)
{
System.out.println("Interrupted Exception on the Tortoise");
}
}//END of While
lock = false; //4th
notifyAll();
} //End of Synch Tortoise_start
public synchronized void Tortoise_stop()
{
lock = true; //5th
notifyAll();
}
public void go(int animal, int hare_x, int hare_y)
{
if (animal == 1) //if animal == hare
{
hare_y = 35;
float RandomNo;
Random RandNumber = new Random();
RandomNo = RandNumber.nextFloat();
if ( (RandomNo > 0) && (RandomNo <= 0.2) ) //Sleep
{
//No Move at all
try{Thread.sleep(1000);}
catch(Exception e){System.err.println("Exception at the Sleeping Thread");}
System.out.println("moving number from Move.go. animal 1 " + animal+ " x = "+hare_x+" y is "+hare_y);
}
else if ( (RandomNo > 0.2) && (RandomNo <= 0.4 ) ) //Big Hop
{
System.out.println(" Hare (RandomNo > 0.2) && (RandomNo <= 0.4 ) ");
//7 Position to the right
hare_x = hare_x + 7;
frame.setLocation(hare_x, hare_y);
try{Thread.sleep(100);}
catch(Exception e){System.err.println("Exception at the Sleeping Thread");}
}
else if ( (RandomNo > 0.4) && (RandomNo <= 0.5) ) //Big slip
{
//10 Position to the left
hare_x = hare_x - 10;
frame.setLocation(hare_x, hare_y);
try{Thread.sleep(100);}
catch(Exception e){System.err.println("Exception at the Sleeping Thread");}
}
else if ( (RandomNo > 0.5) && (RandomNo <= 0.8) ) //Small hop
{
//1 position to the right
hare_x = hare_x + 1;
frame.setLocation(hare_x, hare_y);
try{Thread.sleep(100);}
catch(Exception e){System.err.println("Exception at the Sleeping Thread");}
}
else if ( (RandomNo > 0.8) && (RandomNo <= 1.0) ) //small Slip
{
//2 position to the left
hare_x = hare_x - 2;
frame.setLocation(hare_x, hare_y);
try{Thread.sleep(100);}
catch(Exception e){System.err.println("Exception at the Sleeping Thread");}
}
if (hare_x > 770)
{
System.out.println("The Hare Wins the Race");
}
}
if (animal == 2) //if animal == Tortoise
{
hare_y = 159;
float RandomNo;
Random RandNumber = new Random();
Math.abs(RandomNo = RandNumber.nextFloat());
RandomNo = RandNumber.nextFloat();
if ( (RandomNo > 0) && (RandomNo <= .5) ) //Fast Plod Right
{
//2 Position to the Right
hare_x = hare_x + 2;
frame.setLocation(hare_x, hare_y);
try{Thread.sleep(100);}
catch(Exception e){System.err.println("Exception at the Sleeping Thread");}
}
else if ( (RandomNo > .5) && (RandomNo <= .7) ) //Slip left
{
//Slip 4 Position to the left
hare_x = hare_x - 4;
frame.setLocation(hare_x, hare_y);
try{Thread.sleep(100);}
catch(Exception e){System.err.println("Exception at the Sleeping Thread");}
}
else if( (RandomNo > .7) && (RandomNo <= 1)) //Slow Plod Right
{
//1 Position to the right
hare_x = hare_x + 1;
frame.setLocation(hare_x, hare_y);
try{Thread.sleep(100);}
catch(Exception e){System.err.println("Exception at the Sleeping Thread");}
}
if (hare_x > 770)
{
System.out.println("The Tortoise Wins the Race");
try{Thread.sleep(100);}
catch(Exception e){System.err.println("Exception at the Sleeping Thread");}
}
}
}//END of go
}//End of Class Move
==================>
THREAD CLASS
package turtoiseandhare;
import java.util.Random;
public class TnHThread extends Thread
{
public int animal;
private int x;
private int y;
Move m;
public TnHThread(int tr, Move m1)
{
animal = tr;
m = m1;
if (animal == 1){x = 0; y = 35;}
if (animal == 2){x = 0; y = 158;}
}
public void run()
{
m.moving(animal, x, y);
}
}
====================>