Q 1 - Which of the following is not a keyword in java?

A - static

B - Boolean

C - void

C - private

Q 2 - Can we have multiple classes in same java file?

A - True

B - False

Q 3 - What is the default value of long variable?

A - 0

B - 0.0

C - 0L

D - not defined

Q 4 - Which of the following is true about private access modifier?

A - Variables, methods and constructors which are declared private can be accessed only by the members of the same class.

B - Variables, methods and constructors which are declared private can be accessed by any class lying in same package.

C - Variables, methods and constructors which are declared private in the superclass can be accessed only by its child class.

D - None of the above.

Q 5 - What is an immutable object?

A - An immutable object can be changed once it is created.

B - An immutable object can't be changed once it is created.

C - An immutable object is an instance of an abstract class.

D - None of the above.

Q 6 - What is TreeSet Interface?

A - It is a Set implemented when we want elements in a tree based order.

B - It is a Set implemented when we want elements in a sorted order.

C - It is a Set implemented when we want elements in a binary tree format.

D - It is a Set implemented when we want elements in a hiearchical order.

Q 7 - When static binding occurs?

A - Static binding occurs during Compile time.

B - Static binding occurs during load time.

C - Static binding occurs during runtime.

D - None of the above.

Q 8 - What is Serialization?

A - Serialization is the process of writing the state of an object to another object.

B - Serialization is the process of writing the state of an object to a byte stream.

C - Both of the above.

D - None of the above.

Q 9 - Can try statements be nested?

A - True.

B - False.

Q 10 - Which of the following is a thread safe?

A - StringBuilder

B - StringBuffer

C - Both of the above

D - none of the above