Question 1

How many instances can be created for an abstract Java class?

Accepted Answer

0

Answer

1

Answer

∞

Answer

2

Question 2

What is the output of the following Java code?

Accepted Answer

4.0

Answer

5.0

Answer

4.5

Answer

4

Question 3

Choose the incorrect Java code statement below.

Accepted Answer

char c = "b";

Answer

char c = 'a';

Answer

char c = 255;

Answer

char c = ' ';

Question 4

What is the output of the below Java code?

Accepted Answer

65

Answer

A

Answer

66

Answer

67

Question 5

Does the below Java program compile with error?

Accepted Answer

Yes

Answer

No

Question 6

What is True about a Java String object?

Accepted Answer

All statements are True

Answer

A String object represents a string in the UTF-16 format

Answer

String objects are constant; their values cannot be changed after they are created

Answer

String objects are immutable

Question 7

What is the output of the Java program below?

Accepted Answer

false,true

Answer

true,false

Answer

false,false

Answer

true,true

Question 8

What is the output of the Java program below?

Accepted Answer

Compilation Error

Answer

Runtime Error

Answer

Base::show() called

Answer

Derived::show() called

Question 9

What is the output of the Java program below?

Accepted Answer

Not same

Answer

Runtime Error

Answer

Same

Answer

Compilation Error

Question 10

What is the output of the Java program below?

Accepted Answer

2001,1002

Answer

2001,1001

Answer

2002,1002

Answer

2002,1003

Question 11

What is the output of the Java program below?

Accepted Answer

20,10

Answer

10,10

Answer

20,20

Answer

10,20

Question 12

What is True about the "final" keyword in Java?

Accepted Answer

All statements are True

Answer

When a method of a class is final, it can not be overridden in a subclass

Answer

When a variable is final, it can be assigned value only once

Answer

When a class is made final, it cannot be extended

Question 13

What is the output of the Java program below?

Accepted Answer

2

Answer

Compilation Error

Answer

3

Answer

4

Question 14

What is the output of the Java program below?

Accepted Answer

4321000112123

Answer

1234004321

Answer

4321001234

Answer

1234001121231234

Question 15

What is the output of the Java program below?

Accepted Answer

95

Answer

96

Answer

59

Answer

99

Question 16

What is the output of the Java program below?

Accepted Answer

3,1

Answer

14,0

Answer

14,4

Answer

3,0

Question 17

What is the output of the Java program below?

Accepted Answer

30302010

Answer

1020302010

Answer

303030

Answer

Compilation Error

Question 18

What is the output of the Java program below?

Accepted Answer

12345678910

Answer

109876543210

Answer

0123456789

Answer

Compilation Error

Question 19

What is the "infinite loop" in Java?

Accepted Answer

for ( ; true; );

Answer

for ( ; null; );

Answer

for ( ; false; );

Answer

for ( ; 1; );

Question 20

What is the output of the Java program below?

Accepted Answer

D

Answer

C

Answer

A

Answer

B

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