Java mcq questions with answer – Set 5

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• Total Number Of Questions : 10
• Passing Marks : 7
• Each Question Carry 1 Mark, No Negative Marking.
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#1. The jdb is used to

Create a jar archive

Create a jar archive

Debug a java program

Debug a java program

Create C header file

Create C header file

Generate java documentation

Generate java documentation

#2. What would happen if “String[]args” is not included as an argument in the main method?

No error

No error

Compilation error

Compilation error

The program won’t run

The program won’t run

Program exit

Program exit

#3. Which method will a web browser call on a new applet?

main method

main method

destroy method

destroy method

execute method

execute method

init method

init method

#4. Which of the following is not mandatory in a variable declaration?

a semicolon

a semicolon

an identifier

an identifier

an assignment

an assignment

a data type

a data type

#5. Which of the following methods belong to the string class?

length( )

length( )

compare to ( )

compare to ( )

equals ( )

equals ( )

All of them

All of them

#6. Which of the following control expressions are valid for an if statement?

An integer expression

An integer expression

A Boolean expression

A Boolean expression

Either A or B

Either A or B

Neither A nor B

Neither A nor B

#7. Which of the following do not represent legal flow control statements?

break;

break;

return;

return;

exit();

exit();

continue outer;

continue outer;

#8. Using which keyword we can access value of the instance and class variables of that class inside the method of that class itself?

super

super

final

final

this

this

either super or this

either super or this

#9. If one or more abstract methods are not implemented in an abstract class, then the subclass is also abstract.

Not necessarily

Not necessarily

False

False

True

True

None of the above

None of the above

#10. Which of the following is not subclass of “writer” stream?

FileWriter

FileWriter

LineWriter

LineWriter

BufferedWriter

BufferedWriter

PrintWriter

PrintWriter

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