Java Multiple choice questions

Which of the following features supports multiple constructors in a Java class?

Select one:

a. Overriding

b. Overloading

c. Inheritance

d. None of the other answers

Which of the following is a primitive data type in Java?

Select one:

a. float

b. char

c. boolean

d. All of the other answers

import abc.xyz.OurPackage; Given the above statement, which of the following is correct?

Select one:

a. abc.xyz is a package.

b. None of the other answers

c. OurPackage is a package.

d. xyz is a package.

Which of the following is related to reference type in Java, instead of primitive type?

Select one:

a. All of the other answers

b. double [] rain123;

c. ArrayList ourAL;

d. ActionListener ourAL;

What is the mechanism of de-allocating memory of unreferenced objects in Java?

Select one:

a. Garbage Collection

b. free

c. None of the other answers

d. Constructor