Like creation of a single thread, You can also create more than one thread (multithreads) in a program using class Thread or implementing interface Runnable.
Example -1
In this example multiple threads are created by multiple object of same class.
In this example multiple threads are created by multiple object of same class.
class NewThread implements Runnable
{
String name; // name of thread
Thread t;
NewThread(String threadname)
{
name = threadname;
t = new Thread(this, name);
System.out.println("New thread: " + t);
t.start(); // Start the thread
}
// This is the entry point for thread.
public void run()
{
try
{
for(int i = 5; i > 0; i--)
{
System.out.println(name + " : " + i);
Thread.sleep(500);
}
}
catch (InterruptedException e)
{
System.out.println(name + "Interrupted");
}
System.out.println(name + " exiting.");
}
}
class MultiThread
{
public static void main(String args[])
{
new NewThread("Thread One"); // start threads
new NewThread("Thread Two");
new NewThread("Thread Three");
try
{
Thread.sleep(10000);
}
catch (InterruptedException e)
{
System.out.println("Main thread Interrupted");
}
System.out.println("Main thread exiting.");
}
}
Example- 2
In this example multiple threads are created by using multiple class.
class A extends Thread
{
public void run()
{
display();
}
void display()
{
System.out.println("Thread A");
for(int i=0;i<5;i++)
{
System.out.println("Thread A -> No = " +i);
}
System.out.println("Exit from class A ");
}
}
class B extends Thread
{
public void run()
{
display();
}
void display()
{
System.out.println("Thread B");
for(int i=0;i<5;i++)
{
System.out.println("Thread B ->No = " +i);
}
System.out.println("Exit from class B ");
}
}
class C extends Thread
{
public void run()
{
display();
}
void display()
{
System.out.println("Thread C");
for(int i=0;i<5;i++)
{
System.out.println("Thread C ->No = " +i);
}
System.out.println("Exit from class C ");
}
}
class MultiThread1
{
public static void main(String args[])
{
A obja=new A();
obja.start();
B objb=new B();
objb.start();
C objc=new C();
objc.start();
}
}
Posted by :Ruchita Pandya
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