What is the covariant return type?

0 Answers  

---

How does marker interface provides functionality to the implemented class ? or How dose maker interface gets the functionalities as serialization or cloning.

4 Answers   Cap Gemini,

---

Difference between a process and a program?

0 Answers   Infosys,

---

Can a class be protected in java?

0 Answers  

---

Which is the best way to use for String concatenation in Java?

7 Answers   HCL,

---

Why static functions are used?

0 Answers  

---

how can you take care of mutual exclusion using java threads? : Java thread

0 Answers  

---

Explain the difference between throw and throws in java?

0 Answers  

---

what is the difference between static class and singleton class? can we create static class?

2 Answers   L&T, Octazen, Vamsi Labs,

---

When you say String is immutable, what do you mean by that? Say I have String s = "Ness" s= s+"Technologies"; What will happen? If the value gets appended, then what is the meaning of immutable here?

5 Answers   Ness Technologies,

---

primitive data types in Java ?

3 Answers  

---

What are E and PI?

1 Answers  

---