Extending the Thread class
The following program shows how to extend the Thread in order to implement a thread.
When you compile and run the program, it will display a varying sequence of A's and B's, depending upon when thread A and thread B are able to execute. Later in this module, you will learn how to use synchronization
to keep threads A and B from interfering with each other.
Extending the Thread class
class MyThread extends Thread {
public static void main(String args[]) {
MyThread threadA = new MyThread("A");
MyThread threadB = new MyThread("B");
threadA.start();
threadB.start();
while (threadA.isAlive() || threadB.isAlive()) {
yield();
}
MyObject.displayResult();
}
public MyThread(String name) {
super(name);
}
public void run() {
for (int n = 0; n < 20; n++) {
try {
sleep((int)(Math.random() * 10.0));
}
catch (InterruptedException e) {}
MyObject.update(getName());
}
}
}
class MyObject {
static String result = "";
public static void update(String name) {
result += name;
}
public static void displayResult() {
System.out.println(result);
}
}