Java Programming Mid - I, September - 2014

1.A class contains
  • Variables
  • Methods
  • Variables & Methods
  • Members
Answer: C
2.Expand API
  • Application port interface
  • Advanced programming input
  • Application Programming Interface
  • Applied port interface
Answer: C
3._______ is the collection of classes.
  • Package
  • Interface
  • Classes
  • Objects
Answer: A
4.Which type of inheritance is not allowed in JAVA?
  • Multi Level
  • Single
  • Multiple
  • none
Answer: C
5.Implicit type conversion carried out by
  • Programmer
  • Compiler
  • Type Casting
  • All
Answer: B
6.The default package imported into all java programs is ____________
  • java.util
  • java.awt
  • java.lang
  • java.io
Answer: C
7.An interface contains methods
  • Un-implemented
  • Non-abstract
  • Implemented
  • Final
Answer: A
8.The smallest int data type in java is __________
  • int
  • short
  • byte
  • float
Answer: C
9._______________ are used in java to prevent naming conflicts.
  • packages
  • interfaces
  • classes
  • all
Answer: A
10.The methods that implements an interface must be declare as
  • private
  • public
  • static
  • protected
Answer: B
11.The mechanism of deriving a new class from an old one is _________________
Answer: Inheritance
12.Static members can be accessible without the help of _____________________
Answer: Object
13.An exception is caused by _____________________
Answer: Runtime Errors
14.Define an Object ________________________
Answer: Instance of a class
15.A constructor that accepts no parameter is called as ______________
Answer: Default Constructor
16.Inheritance defines ____________________ relationship.
Answer: is-a
17.The Object class defines in __________________ package.
Answer: java.lang
18.A Constructor is also known as ___________________ function.
Answer: Special Member
19.JVM stands for __________________________
Answer: Java Virtual Machine
20.Default value of float data type is ___________________
Answer: 0.0f