Answer / madhusudhan

use of thread:1.concurrent execution of thread.
2.Program security.
Thread can be create in 2 ways
1.using Thread class
2.using Runnable interface
Example:
//first way of creating thread
class Thread1 extends Thread
{
public void run()
{
for(int i=0;i<1000;i++)
{
System.out.println(hashcode()+":"+i);
}
}
}
//second way of creating thread
class Thread2 implements Runnable
{
public void run()
{
for(int i=1000;i<2000;i++)
{
System.out.println(hashcode()+":"+i);
}
}
}
public class M
{
public static void main(String args[])
{
Thread1 t1=new Thread1();
t1.start();
Thread2 t2=new Thread2();
Thread t=new Thread(t2);
t.start();
}
}

Answer / subash chandra bose l

there are many uses of threads and the main use is to
execute several process at once.

there are two ways of creating a thread and

1. extending a Thread class
2. implementing Runnable interface

Answer / poorna chandar rao.yerrabothu

thread is light whight processes its take low memory and low
proceesing time
there are two types thereds creatd
extending the thered class
implementing the runnable interface

when to use ArrayList and when to use HashMap in webApplication.

1 Answers  

---

Can we create a class inside a class in java?

0 Answers  

---

Why all programming languages have main as a execution starting point?

4 Answers  

---

List some important characteristics on jre

0 Answers  

---

Where pragma is used?

0 Answers  

---

Is overriding possible in java?

0 Answers  

---

What is default constructors?

0 Answers  

---

Can we add default constructor to Servlet?

1 Answers   Fidelity,

---

How is it possible in java programming for two string objects with identical values not to be equal under the == operator?

0 Answers  

---

Can we iterate through collection using for loop?

2 Answers   Rolta,

---

Are primitives objects?

0 Answers  

---

How core java/j2ee project performance can be measured ?

1 Answers  

---