Life Cycle of a Thread: JAVA

A thread goes through various stages in its life cycle. For example, a thread is born, started, runs, and then dies. Following diagram shows complete life cycle of a thread.

Above-mentioned stages are explained here:

• New: A new thread begins its life cycle in the new state. It remains in this state until the program starts the thread. It is also referred to as a born thread.
• Runnable: After a newly born thread is started, the thread becomes runnable. A thread in this state is considered to be executing its task.
• Waiting: Sometimes, a thread transitions to the waiting state while the thread waits for another thread to perform a task.A thread transitions back to the runnable state only when another thread signals the waiting thread to continue executing.
• Timed waiting: A runnable thread can enter the timed waiting state for a specified interval of time. A thread in this state transitions back to the runnable state when that time interval expires or when the event it is waiting for occurs.
• Terminated: A runnable thread enters the terminated state when it completes its task or otherwise terminates.

Below is a code for thread implementation :

/* Implementation Of Threads */

import java.io.*;
import java.util.*;

class AA extends Thread
{
int i;
public void run()
{
System.out.println("Thread A");
for(i=0;i<5;i++)
{
System.out.println("Thread A : "+i);
yield();
}
}
}
class B extends Thread
{
int i;
public void run()
{
System.out.println("Thread B");
for(i=0;i<5;i++)
{
System.out.println("Thread B : "+i);
yield();
}
}

}
class C extends Thread
{
int i;
public void run()
{
System.out.println("Thread C");
for(i=0;i<5;i++)
{
System.out.println("Thread C : "+i);
yield();
}
}
}
class ThreadLionel
{
public static void main(String []args)
{
AA a = new AA();
B b = new B();
C c = new C();
a.start();
b.start();
c.start();
}
}
/*
--------------------OUTPUT--------------------
Thread A
Thread A : 0
Thread A : 1
Thread B
Thread B : 0
Thread C
Thread C : 0
Thread A : 2
Thread B : 1
Thread C : 1
Thread A : 3
Thread B : 2
Thread C : 2
Thread A : 4
Thread B : 3
Thread C : 3
Thread B : 4
Thread C : 4
*/

SUPPORT- 

http://www.tutorialspoint.com/java/java_multithreading.htm

http://javapgms.blogspot.in/search/label/Core%20Java