Answer Posted / vijay, hangar17

Auto boxing is introduced in jdk1.5
Automatic conversion from int to Integer is Auto boxing and
automatic conversion back from Integer to int is auto unboxing.

For example

int i;
Integer a

//Manual conversion

i = a.intValue();
a = new Integer(i);

By Auto boxing

i=a;
a=i;

What are encapsulation, inheritance and polymorphism?

521

---

Difference between start() and run() method of thread class?

582

---

What do you mean by static variable?

564

---

Is java platform independent?

561

---

What is java in layman terms?

521

---

---

What is the structure of java?

500

---

What is the use of parseint in java?

527

---

What is boolean false?

516

---

What is class variable java?

578

---

Why local variables are stored in stack?

486

---

What is a default method?

511

---

What are the 4 types of characters?

535

---

What are the 2 types of java programs?

558

---

How to use string tokenizer class.

610

---

What if I write static public void instead of public static void in java?

572

---