Java MCQ Quiz (Part - 1) | infoStud blogs

Following quiz provides Multiple Choice Questions (MCQs) related to Core Java. You will have to read all the given answers and click over the correct answer. Correct answer will be highleted with green colour and wrong answer will be highleted with red colour.

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

1. Finalize
2. static
3. void
4. Private

2. What is the size of double variable? −

1. 8 bit
2. 16 bit
3. 64 bit
4. 32 bit

3. What is the default value of String variable?

1. null
2. "
3. ""
4. Not defined

4. What is the default value of Object variable?−

1. Undefined
2. Not defined
3. Null
4. 0

5. Which of the following is not a keyword in java?

1. emun
2. Transient
3. strictfp
4. instanceof

6. What is class variable? −

1. Applet is a standalone java program.
2. Applet is a tool.
3. An applet is a Java program that runs in a Web browser.
4. Applet is a run time environment.

7. What is true about a final class?

1. All the options are correct
2. It can't be inherited.
3. Final classes are created so the methods implemented by that class cannot be overridden.
4. class declard final is a final class.

8. Does garbage collection guarantee that a program will not run out of memory? −

2. True.
3. False.

9. Is it necessary that each try block must be followed by a catch block?

1. False
2. True.

10. What is a marker interface? −

1. marker interface is an interface with single method, marker().
2. marker interface is an interface with single method, mark().
3. marker interface is an interface with no method.
4. none of the above.

Also Attempt

• Java MCQ Quiz (Part - 2)
• Java MCQ Quiz (Part - 3)
• Java MCQ Quiz (Part - 4)
• Java MCQ Quiz (Part - 5)
• Java MCQ Quiz (Part - 6)
• Java MCQ Quiz (Part - 7)
• Java MCQ Quiz (Part - 8)
• Java MCQ Quiz (Part - 9)