Thread: A thread is a light weight process. It represents execution of statements. Threads are called light weight because they utilize minimum resources of the system.
How to create a Thread:
Threads can be created in two ways.
1. By inheriting from thread class
2. By using runnable interface
1.By inheriting from thread class:
class Mythread extends Thread
{
public void run()
{ for(int i=0;i<1000;i++)
{
System.out.println((i);
}
}
}
class demo
{
public static void main(String args[])
{
Mythread obj=new Mythread();
Thread t=new Thread(obj);
t.start();
}
}
In the above example, Thread is created using Thread object_name=new Thread(class_object) statement. After creating a thread, we invoke thread by calling start() method. Then run() method starts execution when start() method is called. A thread is terminated when it comes out of run() method.
2. By using runnable interface:
class Mythread implements Runnable
{
public void run()
{ for(int i=0;i<1000;i++)
{
System.out.println((i);
}
}
}
class demo
{
public static void main(String args[])
{
Mythread obj=new Mythread();
Thread t=new Thread(obj);
t.start();
}
}
