Thread Priority in Java

1.	Thread Priority in Java
Answer» In multithreading, each thread is assigned a PRIORITY. The processor is assigned to the thread by the scheduler based on its priority i.e. the highest priority thread is assigned the processor FIRST and so on. The three STATIC values defined in the Thread class for the priority of a thread are given as follows: MAX_PRIORITY This is the maximum thread priority with value 10. NORM_PRIORITY This is the default thread priority with value 5. MIN_PRIORITY This is the minimum thread priority with value 1. A program that demonstrates thread priority in Java is given as follows: import java.lang.; public class ThreadPriorityDemo extends Thread { public static VOID main(String[]args) { ThreadPriorityDemo thread1 = new ThreadPriorityDemo(); ThreadPriorityDemo thread2 = new ThreadPriorityDemo(); ThreadPriorityDemo thread3 = new ThreadPriorityDemo(); System.out.println("Default thread priority of thread1: " + thread1.getPriority()); System.out.println("Default thread priority of thread2: " + thread2.getPriority()); System.out.println("Default thread priority of thread3: " + thread3.getPriority()); thread1.setPriority(8); thread2.setPriority(3); thread3.setPriority(6); System.out.println("New thread priority of thread1: " + thread1.getPriority()); System.out.println("New thread priority of thread2: " + thread2.getPriority()); System.out.println("New thread priority of thread3: " + thread3.getPriority()); } } The OUTPUT of the above program is as follows:* Default thread priority of thread1: 5 Default thread priority of thread2: 5 Default thread priority of thread3: 5 New thread priority of thread1: 8 New thread priority of thread2: 3 New thread priority of thread3: 6

Answer»

In multithreading, each thread is assigned a PRIORITY. The processor is assigned to the thread by the scheduler based on its priority i.e. the highest priority thread is assigned the processor FIRST and so on.

The three STATIC values defined in the Thread class for the priority of a thread are given as follows:

MAX_PRIORITY

This is the maximum thread priority with value 10.

NORM_PRIORITY

This is the default thread priority with value 5.

MIN_PRIORITY

This is the minimum thread priority with value 1.

A program that demonstrates thread priority in Java is given as follows:

import java.lang.*; public class ThreadPriorityDemo extends Thread { public static VOID main(String[]args) { ThreadPriorityDemo thread1 = new ThreadPriorityDemo(); ThreadPriorityDemo thread2 = new ThreadPriorityDemo(); ThreadPriorityDemo thread3 = new ThreadPriorityDemo(); System.out.println("Default thread priority of thread1: " + thread1.getPriority()); System.out.println("Default thread priority of thread2: " + thread2.getPriority()); System.out.println("Default thread priority of thread3: " + thread3.getPriority()); thread1.setPriority(8); thread2.setPriority(3); thread3.setPriority(6); System.out.println("New thread priority of thread1: " + thread1.getPriority()); System.out.println("New thread priority of thread2: " + thread2.getPriority()); System.out.println("New thread priority of thread3: " + thread3.getPriority()); } }

The OUTPUT of the above program is as follows:

Default thread priority of thread1: 5 Default thread priority of thread2: 5 Default thread priority of thread3: 5 New thread priority of thread1: 8 New thread priority of thread2: 3 New thread priority of thread3: 6

Thread Priority in Java

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