Question 1

Can constructors be declared static?

technology programming languages

True
False

Answer

Correct Option: B

Question 2

Are static methods allowed to access instance variables using "this"

technology programming languages

No
Yes
Can be in special cases
None

Answer

Correct Option: A

Question 3

class C{ int i; public static void main (String[] args) { int i; //1 private int a = 1; //2 protected int b = 1; //3 public int c = 1; //4 System.out.println(a+b+c); //5 }}

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Compile error at 2,3,4,5
Compile error at 1,2,3,4,5
prints 3
none of the above

Answer

Correct Option: A

Question 4

class C { public static void main(String[] args) { int i1=1; switch(i1){ case 1: System.out.println("one"); case 2: System.out.println("two"); case 3: System.out.println("three"); }}} What is the result of attempting to compile and run the program?

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Prints one, two , three
prints one
compile time error
Run time Exception

Answer

Correct Option: A

Question 5

Which of these below are java key words?

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new
break
default
goto

Answer

Correct Option: A,B,C

Question 6

select which of these are correct

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int = 32-bit signed
float = 32-bit IEEE 754 floating point
long = 64-bit signed
short = 18-bit signed

Answer

Correct Option: A,B,C

Question 7

A top level class can be marked as

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public
synchronise
private
transient

Answer

Correct Option: A

Question 8

" ?: " is a

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Conditional operator
assignment operator
bitwise operator
none

Answer

Correct Option: A

Question 9

Which of the following are bit wise operators in java?

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~
<
>>
&&

Answer

Correct Option: A,B,C

Question 10

The expression to the switch must be of a type

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byte/int,
short,
char,
float

Answer

Correct Option: A,B,C

Question 11

All classes extend from

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java.lang.object
java.lang
none
java.lang.string

Answer

Correct Option: A

Question 12

abstract keyword is used

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When a class is not to be instantiated,
declare a method without providing the implementation
cannot use a field declared abstract
none

Answer

Correct Option: A,B

Question 13

Which is not a part of java

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final
finally
finalize
finalised

Answer

Correct Option: D

Question 14

Using super keywork how many levels up we can go

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one level
two levels
multiple levels
none

Answer

Correct Option: A

Question 15

Can a private method of a super class be declared in a sub class?

technology programming languages

yes
no
cannot say
none

Answer

Correct Option: A

Question 16

assuming all the variables are declared and initialied properly , will the below line compile? for (i=3,j=76;i>589;j++,i++){}

technology programming languages

Yes will compile
no doesnot compile
changes have to be made in checking the variables
none

Answer

Correct Option: A

Question 17

Using the "Super" keyword we can go one level up (T/F)

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True
False

Answer

Correct Option: A

Question 18

" ?: " is a conditional Operator (T/F)

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True
False

Answer

Correct Option: A

Question 19

Can final method be overridden?

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True
False

Answer

Correct Option: B

Question 20

Can you automatically convert long value into int , if the long value is small enough to fit into an int.

technology programming languages

True
False

Answer

Correct Option: A

Description: programming languages Online Quiz - 33
Number of Questions: 20
Created by: Aliensbrain Bot
Tags: programming languages

programming languages Online Quiz - 33

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