JAVA LANGUAGE
MULITPLE CHOICE
QUESTION SET-1
1. The year in which java
developed?
1990
1991
1993
1996
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2. Java is a ------?
Markup language
Object oriented
language
Structured language
None of these
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3. In its early days java is known
as?
Oct
Oak
J language
None of above
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4. Java doesn't support:
Multithreading
Reflection
Operator Overloading
Garbage Collection
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5. Range of byte data type in java
is ----32768 to 32767
-2147483648 to
2147483647
-128 to 127
None of the mentioned
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6. performing more than one task
at a time is called?
Multiprogramming
Multithreading
Multitasking
Multiprocessing
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7. Java doesn’t support
Multiprogramming
Operator overloading
Inheritance
Garbage collection
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8. JDK stands for-------.
Java Data Kit
Java Definition Kit
Java Development Kit
Java Design Kit
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9. All the classes in java are -----.
Private
Public
Final
Protected
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10. Abbreviation of AWT is
Abstract Window
Toolkit
Application with types
A Web Toolkit
Absolutely Wonderful
Kit
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11. After compilation source code
is converted into ?
Output
Byte code
Error
None of above
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12. procedure of converting typed
code to machine code?
Compilation
Inheritance
Polymorphism
None
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13. In java, if a variable has no
value before using, ---------.
It will contain a rubbish
value
It will initialized with
zero
Compiler will give an
error
None of above
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14. Which among the following is
the essential section of java
program?
package Statement
import Statement
Documentation
section
Class declaration
section
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15. sharing of common
information is achieved by the
concept of?
polymorphism
inheritance
encapsulation
none of above
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16. ------- consist a data and
methods?
Variable
Class
Vectors
None of these
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18. -------is software that
interprets Java byte code.
Compiler
Interpreter
Java Virtual Machine
none of above
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19. Which of the following
command is fit to run a Java
application in ByteCode.class?
java ByteCode
javac ByteCode.java
java ByteCode.class
javac ByteCode
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19. Java is also known as -----stage language
One
Two
Three
Four
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20. In java, if you do not give a
value to a variable before using it
,---------.
It will contain a
garbage value
It will initialized with
zero
Compiler will give an
error
None of above
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21. Which command typed to
interpret java code:
Java
Javac
Javap
None of the above
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22. Identify the list which has only
java keywords?
class, if, void, long, Int,
continue
goto, instanceof,
native, finally, default,
throws
try, virtual, throw, final,
volatile, transient
strictfp, constant,
super, implements, do
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23. JAVAP means :
java compiler
java interpreter
java disassemble
java debugger
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24. Hot java is a:
web browser
system software
IDE
None of above
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25. How many types of variables
exist in java?
2
3
4
5
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26. Local variable declare:
Inside the method
Both side
Outside the method
None of above
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27. Instance variable declare:
Inside the method
Outside the method
Inside the class but
outside the method
Outside the class
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28. Scope of static variable is:
Local
Global
Both
None
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29. How many bytes a Boolean
has?
1
2
3
4
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30. Long has ----- bytes.
8
16
4
2
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31. Float data-type deals with:
Integer
Fraction
Decimal point
None of above
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32. Int data type has:
2 bytes
3 bytes
4 bytes
5 bytes
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33. Default value for char data
type is:
‘\u0000’
‘/u0000’
‘u0000’
‘\0000’
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34. Which package contains
String?
Java.util
Java.rmi
Java.lang
None
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35. Which of the following is true
about String?
String is mutable.
String is immutable.
String is a data type.
None of the above.
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36. What is the default value of
byte variable?
0
0.0
null
Not defined
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37. What is instance variable?
Instance variables are
static variables within a
class but outside any
method.
Instance variables are
variables within a class
but outside any method.
Instance variables are
variables defined inside
methods, constructors or
blocks.
None of the above
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38. What kind of variables a class
can consist of?
class variables,
instance variables
class variables, local
variables, instance
variables
class variables
class variables, local
variables
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39. If result= 2+3*5, what is the
value and type of ‘result’ variable?
17, bytes
25, bytes
17,int
25, int
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40. Which of the following is the
smallest integer data type ?
Into
long
byte
short
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41. Which of the following is not a
primitive data type?
byte
short
enum
Int
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42. Which value cannot store
character data type.
Digit
String
Special character
Letter
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43. Range of byte data type is?
-128 to 255
-128 to 256
-128 to 127
-127 to 128
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44. In order to fetch stream of data
from network or file, following
data type used?
double
char
Into
byte
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45. 64 bits are stored by:
double
Into
long
float
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46. What is the default value for
“double” data type?
0
0.0
null
0.0d
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47. What is the range of data type
short in Java?
-128 to 127
-32768 to 32767
-2147483648 to
2147483647
None of the mentioned
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48. Which one of this value
contains float data type?
1.7e-308
1.7e+308
3.4e-038
3.4e-050
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49. Default value for Boolean data
type is:
True
False
0
1
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50. ----- is a reference data type:
int
short
double
array
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