Answer Posted / rajender

i agree with 3,4,5,6,7 answers .hashmap is not syncronized

What are the restriction imposed on a static method or a static block of code?

1044

---

Explain how to force the garbage collection in java.

953

---

Is null an object in java?

1012

---

What is a singleton class in Java?

1040

---

What is compareto () in java?

956

---

What is the difference between sop and work instruction?

915

---

how to create constants in java?

1069

---

Can a main method be declared final?

1040

---

Why to use nested classes in java? (Or) what is the purpose of nested class in java?

1053

---

Is c better than java?

935

---

How to display arraylist values in java?

990

---

How are multiple inheritances done in Java?

1118

---

a thread is runnable, how does that work? : Java thread

988

---

can any body body expalin best definitions & best real time exaples for opps concepts.

2249

---

What is difference between string and stringbuffer?

1070

---