Java Example - Thread Priority Setting |

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Java Example - Thread Priority Setting

Java Example

The following example demonstrates how to set the priority of a thread using the setPriority() method:

SimplePriorities.java File

public class SimplePriorities extends Thread{
    private int countDown = 5;
    private volatile double d = 0;

    public SimplePriorities(int priority){
        setPriority(priority);
        start();
    }

    public String toString(){
        return super.toString() + ": " + countDown;
    }

    public void run(){
        while(true){
            for(int i = 1; i<100000; i++)
                d = d + (Math.PI + Math.E) / (double)i;
            System.out.println(this);
            if(--countDown == 0)
                return;
        }
    }

    public static void main(String[]args){
        new SimplePriorities(Thread.MAX_PRIORITY);
        for(int i = 0; i<5; i++)
            new SimplePriorities(Thread.MIN_PRIORITY);
    }
}

The output of the above code is:

Thread[Thread-1,1,main]: 5
Thread[Thread-2,1,main]: 5
Thread[Thread-3,1,main]: 5
Thread[Thread-0,10,main]: 5
Thread[Thread-3,1,main]: 4
Thread[Thread-0,10,main]: 4
Thread[Thread-1,1,main]: 4
Thread[Thread-5,1,main]: 5
Thread[Thread-4,1,main]: 5
Thread[Thread-2,1,main]: 4
Thread[Thread-0,10,main]: 3
Thread[Thread-1,1,main]: 3
Thread[Thread-4,1,main]: 4
Thread[Thread-2,1,main]: 3
……

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