Answer Posted / aditi

Final method cannot be overridden by subclasses. This is
used to prevent unexpected behavior from a subclass
altering a method.

Example:

public class MyClass {
public final void myFinalMethod() {...}

Final Variable, it can only be assigned to once and only in
the constructor of class if variable is not a reference to
pther object.

Example:

public class Sphere {

public static final double PI = 3.141592653589793; //
this might as well be a constant
public final double radius;
public final double xpos;
public final double ypos;
public final double zpos;

Sphere(double x, double y, double z, double r) {
radius = r;
xpos = x;
ypos = y;
zpos = z;
}

How do you differentiate abstract class from interface?

913

---

Explain restrictions for using anonymous inner classes?

1036

---

who can i handle multiple client in RMI

1834

---

What is meant by string is immutable?

1000

---

How do you sort arraylist in descending order?

980

---

What are packages in java?

1460

---

Can main() method in java can return any data?

1110

---

What is widening and narrowing in java? Discuss with an example.

984

---

Explain inheritance in java?

928

---

What are the types of casting?

1006

---

What is the purpose of using the java bean?

998

---

Explain hashset and its features?

1079

---

Is java a pure object oriented language?

911

---

What are three advantages of using functions?

955

---

What are annotations in java?

1036

---