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You are here : Home » Java » Objective Questions And Answers

Java Objective Questions (MCQs) - 218 Questions

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Question: 1

(A) 10
(B) 11
(C) 12
(D) Compilation Error

Expert datatype[Posted by: Admin | Chicago, USA]



Question: 2

(A) 11
(B) 12
(C) 13
(D) Compilation Error

Practitioner operators[Posted by: Admin | Chicago, USA]



Question: 3

(A) 10
(B) 11
(C) 12
(D) 13

Beginner operators[Posted by: Admin | Chicago, USA]



Question: 4

(A) 100
(B) 110
(C) 121
(D) Compilation Error

Beginner operators[Posted by: Admin | Chicago, USA]



Question: 5

(A) 100
(B) 110
(C) 121
(D) 144

Beginner variables[Posted by: Admin | Chicago, USA]



Question: 6

(A) 121
(B) 132
(C) 144
(D) 100

Beginner operators[Posted by: Admin | Chicago, USA]



Question: 7

(A) 121
(B) 144
(C) 132
(D) 100

Beginner operators[Posted by: Admin | Chicago, USA]



Question: 8

(A) 100
(B) 90
(C) 81
(D) 80

Beginner operators[Posted by: Admin | Chicago, USA]



Question: 9

(A) 100
(B) 90
(C) 99
(D) 72

Beginner variables[Posted by: Admin | Chicago, USA]



Question: 10

(A) 138
(B) 264
(C) 41
(D) 25

Beginner operators[Posted by: Admin | Chicago, USA]



Question: 11

(A) -
(B) +
(C) *

Beginner operators[Posted by: Admin | Chicago, USA]



Question: 12

(A) |
(B) ^
(C) ~
(D) <->

Beginner operators[Posted by: Admin | Chicago, USA]



Question: 13

(A) Left Shift Operator
(B) Right Shift Operator
(C) Zero Fill Right Shift
(D) Zero Fill Left Shift

Expert operators[Posted by: Admin | Chicago, USA]



Question: 14

(A) ()
(B) ++
(C) *
(D) >=

Beginner operators[Posted by: Admin | Chicago, USA]



Question: 15

(A) ()
(B) *
(C) +
(D) ++

Beginner operators[Posted by: Admin | Chicago, USA]



Question: 16

(A) >=
(B) <=
(C) !=
(D) +=

Beginner operators[Posted by: Admin | Chicago, USA]



Question: 17

(A) Local variables are declared in methods, constructors, or blocks
(B) Local variables are created when the method, constructor or block is entered
(C) the variable will be destroyed once it exits the method, constructor, or block
(D) We can't create reference variables of Local variables

Beginner variables[Posted by: Admin | Chicago, USA]



Question: 18

(A) Windows
(B) Mac OS
(C) UNIX
(D) All of these

Beginner other[Posted by: Admin | Chicago, USA]



Question: 19

(A) True
(B) False

Beginner variables[Posted by: Admin | Chicago, USA]



Question: 20

(A) True
(B) False

Beginner methods[Posted by: Admin | Chicago, USA]



Question: 21

(A) default
(B) public
(C) protected
(D) All of these

Practitioner other[Posted by: Admin | Chicago, USA]



Question: 22

(A) True
(B) False

Beginner methods[Posted by: Admin | Chicago, USA]



Question: 23

(A) byte
(B) short
(C) long
(D) class

Beginner datatype[Posted by: Admin | Chicago, USA]



Question: 24

(A) 5
(B) 4
(C) 1
(D) 0

Beginner loops[Posted by: Admin | Chicago, USA]



Question: 25

(A) 5
(B) 4
(C) 3
(D) 2

Beginner loops[Posted by: Admin | Chicago, USA]



Question: 26

(A) 5
(B) 4
(C) 3
(D) 2

Practitioner loops[Posted by: Admin | Chicago, USA]



Question: 27

(A) 1
(B) 2
(C) 3
(D) 4

Practitioner loops[Posted by: Admin | Chicago, USA]



Question: 28

(A) 0
(B) 1
(C) 2
(D) 3

Practitioner loops[Posted by: Admin | Chicago, USA]



Question: 29

(A) 0
(B) 1
(C) 2
(D) Infinite times

Practitioner loops[Posted by: Admin | Chicago, USA]



Question: 30

(A) 5
(B) 4
(C) 3
(D) 0

Practitioner loops[Posted by: Admin | Chicago, USA]



Question: 31

(A) 5
(B) 4
(C) 2
(D) 1

Practitioner loops[Posted by: Admin | Chicago, USA]



Question: 32

(A) 5
(B) 10
(C) 0
(D) Compilation Error

Beginner conditional[Posted by: Admin | Chicago, USA]



Question: 33

(A) 5
(B) 10
(C) 510
(D) Compilation Error

Practitioner conditional[Posted by: Admin | Chicago, USA]



Question: 34

(A) 5
(B) 510
(C) 5100
(D) Compilation Error

Expert conditional[Posted by: Admin | Chicago, USA]



Question: 35

(A) 5
(B) 510
(C) 5100
(D) 100

Expert conditional[Posted by: Admin | Chicago, USA]



Question: 36

(A) 5
(B) 10
(C) 100
(D) 0

Practitioner conditional[Posted by: Admin | Chicago, USA]



Question: 37

(A) 10
(B) 510
(C) 5100
(D) 100

Expert conditional[Posted by: Admin | Chicago, USA]



Question: 38

(A) Compilation Error
(B) 10-even-
(C) 10-even-0
(D) 10-odd

Expert conditional[Posted by: Admin | Chicago, USA]



Question: 39

(A) Compilation Error
(B) 10-even-
(C) 10-odd-
(D) 10-even-0

Expert conditional[Posted by: Admin | Chicago, USA]



Question: 40

(A) Compilation Error
(B) Length is 5-10
(C) Length not in 5-10
(D) nothing is printed

Practitioner conditional[Posted by: Admin | Chicago, USA]



Question: 41

(A) "cpp''buzz"
(B) "cpp''buzz"
(C) cpp''buzz
(D) "cpp' 'buzz"

Expert other[Posted by: Admin | Chicago, USA]



Question: 42

(A) 10"10"
(B) Compilation Error
(C) 20
(D) 1010

Practitioner variables[Posted by: Admin | Chicago, USA]



Question: 43

(A) 10-10
(B) 0
(C) 1010
(D) Compilation Error

Practitioner variables[Posted by: Admin | Chicago, USA]



Question: 44

(A) 10+10
(B) 1010
(C) Compilation Error
(D) Undefined

Practitioner variables[Posted by: Admin | Chicago, USA]



Question: 45

(A) 0
(B) 10"-10"
(C) 10-10
(D) Compilation Error

Expert variables[Posted by: Admin | Chicago, USA]



Question: 46

(A) 30
(B) 1020
(C) 10+10+10
(D) 1010+10

Expert variables[Posted by: Admin | Chicago, USA]



Question: 47

(A) Compiler
(B) Class Loader
(C) Byte Code Verifier
(D) Java Virtual Machine

Beginner other[Posted by: Admin | Chicago, USA]



Question: 48

(A) Editing -> Compilation -> Class Loader -> Bytecode Verifier -> Execution
(B) Editing -> Bytecode Verifier -> Compilation -> Class Loader -> Execution
(C) Editing -> Compilation -> Bytecode Verifier -> Class Loader -> Execution
(D) None of the above

Beginner other[Posted by: Admin | Chicago, USA]



Question: 49

(A) friends
(B) friend
(C) fr
(D) compilation Error

Beginner loops[Posted by: ASISH ARAVIND | Des Moines USA]



Question: 50

(A) True
(B) False

Beginner other[Posted by: Admin | Chicago, USA]



Question: 51

(A) True
(B) False

Beginner other[Posted by: Admin | Chicago, USA]



Question: 52

(A) 12345
(B) 123
(C) 124
(D) 135

Beginner arrays[Posted by: Admin | Chicago, USA]



Question: 53

(A) 12345
(B) Nothing is printed
(C) 1
(D) Infinite times

Beginner arrays[Posted by: Admin | Chicago, USA]



Question: 54

(A) 3
(B) 2
(C) 1
(D) 0

Beginner arrays[Posted by: Admin | Chicago, USA]



Question: 55

(A) 12345
(B) 135
(C) 22222
(D) 14385

Beginner arrays[Posted by: Admin | Chicago, USA]



Question: 56

(A) a b c d e
(B) abcde
(C) 97 98 99 100 101
(D) 65 66 67 68 69

Expert arrays[Posted by: Admin | Chicago, USA]



Question: 57

(A) a b c d e
(B) 96 97 98 99 101
(C) 65 66 67 68 69
(D) None of the above

Expert arrays[Posted by: Admin | Chicago, USA]



Question: 58

(A) abcde
(B) 6566676869
(C) Compilation Error
(D) Some Garbage Value

Beginner arrays[Posted by: Admin | Chicago, USA]



Question: 59

(A) 0
(B) Compilation Error
(C) -10
(D) Garbage Value

Beginner classesAndobjects[Posted by: Admin | Chicago, USA]



Question: 60

(A) -10
(B) Undefined
(C) Compilation Error
(D) 0

Practitioner classesAndobjects[Posted by: Admin | Chicago, USA]



Question: 61

(A) Garbage Value
(B) Code has compilation error
(C) null
(D) 0

Beginner variables[Posted by: Admin | Chicago, USA]



Question: 62

(A) Garbage Value
(B) 0
(C) Undefind
(D) Compilation Error

Beginner variables[Posted by: Admin | Chicago, USA]



Question: 63

(A) 0
(B) 10
(C) -10
(D) Compilation Error

Beginner classesAndobjects[Posted by: Admin | Chicago, USA]



Question: 64

(A) 5
(B) 10
(C) Error: Can't assign a value to final variable a
(D) None of the above

Beginner variables[Posted by: Admin | Chicago, USA]



Question: 65

(A) 0
(B) 10
(C) Undefind
(D) Error: Can't modify final variable a

Beginner variables[Posted by: Admin | Chicago, USA]



Question: 66

(A) 5
(B) 10
(C) 0
(D) Error: variable a might already have been assigned

Beginner variables[Posted by: Admin | Chicago, USA]



Question: 67

(A) 1
(B) 2
(C) Compilation Error
(D) Infinite times

Beginner loops[Posted by: Admin | Chicago, USA]



Question: 68

(A) 0
(B) 1
(C) Infinite Times
(D) Error: Unreachable Statement

Beginner loops[Posted by: Admin | Chicago, USA]



Question: 69

(A) Infinite times
(B) 0 times
(C) 1 time
(D) error: unreachable statement

Beginner loops[Posted by: Admin | Chicago, USA]



Question: 70

(A) Infinite times
(B) 0
(C) 1
(D) error: unreachable statement

Beginner loops[Posted by: Admin | Chicago, USA]



Question: 71

(A) 0
(B) 1
(C) Infinite Times
(D) Compilation Error

Beginner loops[Posted by: Admin | Chicago, USA]



Question: 72

(A) 00
(B) 0-1
(C) 0-2
(D) -2

Beginner methods[Posted by: Admin | Chicago, USA]



Question: 73

(A) -2
(B) 0-1
(C) 0-2
(D) error: non-static method can't be called

Practitioner methods[Posted by: Admin | Chicago, USA]



Question: 74

(A) Compilation Error
(B) 3
(C) 5
(D) 6

Practitioner methods[Posted by: Admin | Chicago, USA]



Question: 75

(A) 63321
(B) 36
(C) 33
(D) 12336

Expert methods[Posted by: Admin | Chicago, USA]



Question: 76

(A) 32136
(B) 33126
(C) 12336
(D) 63321

Beginner methods[Posted by: Admin | Chicago, USA]



Question: 77

(A) 123456789
(B) 12345678
(C) 122
(D) None of the above

Expert methods[Posted by: Admin | Chicago, USA]



Question: 78

(A) 12
(B) 01
(C) 11
(D) 10

Beginner methods[Posted by: Admin | Chicago, USA]



Question: 79

(A) Yes
(B) No

Beginner methods[Posted by: Admin | Chicago, USA]



Question: 80

(A) 123
(B) 1234
(C) 12340
(D) Compilation Error

Beginner typecasting[Posted by: Admin | Chicago, USA]



Question: 81

(A) 1234.34
(B) 1234
(C) .1234.00
(D) NumberFormatException

Beginner typecasting[Posted by: Admin | Chicago, USA]



Question: 82

(A) 1234.00
(B) 1234.34
(C) 1234
(D) Exception

Expert typecasting[Posted by: Admin | Chicago, USA]



Question: 83

(A) Compilation Error
(B) Exception
(C) 10
(D) 1

Beginner typecasting[Posted by: Admin | Chicago, USA]



Question: 84

(A) 10.0
(B) 10
(C) error: loss precision
(D) Exception

Expert typecasting[Posted by: Admin | Chicago, USA]



Question: 85

(A) 10.0f
(B) 10.0
(C) 10
(D) error: no suitable method found for toString(float)

Practitioner typecasting[Posted by: Admin | Chicago, USA]



Question: 86

(A) 10.0f
(B) 10.0
(C) 10
(D) 10.00

Beginner typecasting[Posted by: Admin | Chicago, USA]



Question: 87

(A) 10.0f
(B) 10.0
(C) 10.00
(D) 10.0000

Practitioner typecasting[Posted by: Admin | Chicago, USA]



Question: 88

(A) 10.0000f
(B) 10.0000
(C) 10.00
(D) 10.0

Expert typecasting[Posted by: Admin | Chicago, USA]



Question: 89

(A) 0
(B) 10
(C) 100
(D) Exception

Practitioner typecasting[Posted by: Admin | Chicago, USA]



Question: 90

(A) 10
(B) 10.00
(C) 10.87
(D) NumberFormatException

Expert typecasting[Posted by: Admin | Chicago, USA]



Question: 91

(A) 10.87
(B) 10.00
(C) 10
(D) error:possible loss of precision

Expert typecasting[Posted by: Admin | Chicago, USA]



Question: 92

(A) 10.87
(B) 10.870000
(C) 10.8700
(D) 10.00

Expert typecasting[Posted by: Admin | Chicago, USA]



Question: 93

(A) SunMoon
(B) Sun
(C) Moon
(D) Compilation Error

Practitioner conditional[Posted by: Admin | Chicago, USA]



Question: 94

(A) Moon
(B) Sun
(C) SunMoon
(D) error: int can not be converted to boolean

Practitioner conditional[Posted by: Admin | Chicago, USA]



Question: 95

(A) Sun
(B) Moon
(C) SunMoon
(D) Compilation Error

Practitioner conditional[Posted by: Admin | Chicago, USA]



Question: 96

(A) Sun
(B) Nothing is printed
(C) Compilation Error
(D) Exception

Practitioner conditional[Posted by: Admin | Chicago, USA]



Question: 97

(A) Compilation Error
(B) Sun
(C) Nothing is printed
(D) error: unreachable statement

Practitioner conditional[Posted by: Admin | Chicago, USA]



Question: 98

(A) Compilation Error
(B) exception: unreachable code
(C) Sun
(D) SunMoon

Beginner conditional[Posted by: Admin | Chicago, USA]



Question: 99

(A) Sun
(B) SunMoon
(C) Nothing is printed
(D) Compilation Error

Practitioner conditional[Posted by: Admin | Chicago, USA]



Question: 100

(A) hi
(B) nothing is printed
(C) error: sum() has private access
(D) Exception

Beginner classesAndobjects[Posted by: Admin | Chicago, USA]


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