Home » Interview » Technology

What is autoboxing and unboxing ?

Correct Answer: Autoboxing is the automatic conversion that the Java compiler makes between the primitive types and their corresponding object wrapper classes For example, converting an int to an Integer, a double to a Double, and so on If the conversion goes the other way, this is called unboxing

← Previous Question Next Question→

More Questions from Technology

Can you access non static variable in static context ?
What is the difference between an Interface and an Abstract class ?
Which of the following statements are equal for a variable declared in the interface ? 1. int X=10 2. public int X=10 3. public static final int X=10
Inside an interface when should the variables be initialized?
Which of the following method declarations are allowed inside interface?
Why interface method is always public?
Which among the following is a scope resolution operator?
Which kind of inheritance is not supported directly through classes in java?
public class Threads2 implements Runnable { public void run() { System.out.println("run."); throw new RuntimeException("Problem"); Which among the following is true? } public static void main(String[] args) { Thread t = new Thread(new Threads2()); t.start(); System.out.println("End of method."); } }
public abstract class Shape { private int x; private int y; public abstract void draw(); public void setAnchor(int x, int y) { this.x = x; this.y = y; } } Which two classes use the Shape class correctly?

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion