Concurrent Programming (Threads)

1. University of Palestine
Software Engineering
Concurrent and Real Time
Programming
Simulates a Virtual Battle
By:
Issam Alshamaly
Shady Alshareef
Mohammad Abaas :Supervisor
Eng. Mohammad Alshareef

2. Introduction
Project Interface
Project Explaining
Code
?

3. Simulates a Virtual Battle is a project simulates battle or
war; we all know that the world doesn’t empty from
wars because always the forces of good and evil are
exist, but in the end even the evil forces were reached to
highest level of the power, the good forces will be win.
This is a project to explain how the Concurrent Systems
work, in it there four threads ( Man, Tank, Plane and
Radar) and also fifth thread as main class.
Man, Tank and Plane are attack threads, and Radar thread
for defender.

4. Project Interface

5. Project Explaining
 Symbols:
House
Solider
Tank
Plane
House “Peace
Force”
Blast “injustice
Force”

6. Project Explaining
 Symbols:
Under Attack House
Destroyed
Solider
Destroyed
Tank
Destroyed
Plane

7. Project Explaining
 In the begin of the project all houses are
safety as the normal case and immediately the
attacker threads and the defender thread start.
 Attacker units attack houses and we can see
the explosions in the interface, Radar which is
the only defender unit searches about the
houses which were attacked and when found
anyone of them, it identifies the type of attack
and destroys it as we as show symbols of
three attack types.

8. Project Explaining
 But we can help the defender unit through
pressing on the blast places.
 And we can control in the speed of threads
from decrease or increase delay time.
 In addition to all that we can use the peace
force which protects all houses or the injustice
force which destroys all houses.
 Battle statistical shows the number of Attack
units and the units that were destroyed.
 Again button makes restart to the project.

9. Code
 We used array of buttons to print the battlefield
and every button is as house, also we control
with buttons through their coordinates.
• public static javax.swing.JButton[][] multi = new JButton[10][10];
• for (x = 0; x <= multi.length - 1; x++) {
for (y = 0; y <= multi.length - 1; y++) {
//code
}}
• multi[x][y] = new JButton("");

10. Code
 We used this function to get the a reference of
the source that has fired the event.
• ((JButton) e.getSource()).getName();
• setName("save");
 We used “setName” function to identify the
statues of home and attacker type.
• setName("Foot soldiers attack");

11. Code
 We used “setIcon();” function to appear an
image describes the status of house.
• setIcon(PrintArray.Iplan);
• Random r = new Random();
int rx = r.nextInt(10);
int ry = r.nextInt(10);
 We used “Random();” function to generate a
new coordinate.

12. Code
 We used “isSelected()” function as a key for
buttons to prevent more than one attacking at the
same time.
• setSelected(true);
• War.stop.unlock();
 We used “ReentrantLock” function to lock
and unlock in some cases.

13. Any Question?

14. Thank you