/* Multiple Threads Executing
* Author Myth17
*/
class T1 implements Runnable
{
public void run()
{
for(int c=0;c<10;c++)
System.out.println(Thread.currentThread().getName()+" running....");
}
}
class T2 implements Runnable
{
public void run()
{
for(int c=0;c<10;c++)
System.out.println(Thread.currentThread().getName()+" running....");
}
}
class T3 implements Runnable
{
public void run()
{
for(int c=0;c<10;c++)
System.out.println(Thread.currentThread().getName()+" running....");
}
}
class Rt
{
public static void main(String args[])
{
T1 j1=new T1();
T2 j2=new T2();
T3 j3=new T3();
Thread w1=new Thread(j1);
w1.setName("S");
Thread w2=new Thread(j2);
w2.setName("N");
Thread w3=new Thread(j3);
w3.setName("M");
w1.start();
w2.start();
w3.start();
}
}
If the loop runs up to 3 in the three for loops, in Linux Java JVM each thread executes serially as SSSNNNMMM (9 lines).
I changed the loop to run up to 10 in each for loops. I was expecting 30 lines and a change in order. But strangely S never executes and program exits!!
Shouldn't S get its chance sooner or later? As what I have read is that apart from deamon threads JVM shuts only after user thread complete.