Answer / Vikram Singh Vimal

A TreeSet is an implementation of the Set interface in Java, which maintains its elements in sorted order. A TreeSet can store unique elements and provides operations for inserting, deleting, and searching elements.

What is the use of anonymous inner classes ?

12 Answers   DELL, HCL,

---

Implement a stack with push (), pop() and min() in O(1) time.

1 Answers   Amazon,

---

Is 0 a prime number?

1 Answers  

---

"we cannot create an object of interface but we can create a variable of it".diacuss the statement with the help of an example.

2 Answers  

---

What is the difference between reader/writer and inputstream/output stream?

1 Answers  

---

Why pass by reference is not possible in java?

1 Answers  

---

How to print nodes of a Binary tree?

1 Answers  

---

What is the use of ?this??

4 Answers  

---

how many ways we can serialize the java object?

2 Answers   Satyam,

---

Can multiple catch statements be used in exceptions ?

6 Answers   Wipro,

---

Can a class be declared as protected?

1 Answers  

---

What is variable declaration and definition?

1 Answers  

---