Hi Friends, I am new to java. Can u explain about thread concept.How i know one thread is locked, and how can i force or acquire another thread for lock . Finally how to know thread is released from lock. Explain types of lock(like method level and block level) in thread.

1 Answers  

---

Can a class extend abstract class or interface? why

4 Answers   Wipro,

---

what is Portal(web based online portal)?

2 Answers   AIG,

---

Can an interface extend a class?

0 Answers  

---

Is main a keyword in java?

0 Answers  

---

---

What is the dot operator?

0 Answers  

---

how exactly garbage collection take place?

4 Answers  

---

What is string intern in java?

0 Answers  

---

Can I uninstall java?

0 Answers  

---

Which class represents the socket that both the client and server use to communicate with each other?

0 Answers  

---

Write POJO class as a key to hashmap???

2 Answers  

---

Is char * a string?

0 Answers  

---