MCQ of Java for Java Proficiency test [Solved PDF] – 3

All java classes are derived from
A) java.lang.Class
B) java.util.Name
C) java.lang.Object
D) java.awt.Window
 
The jdb is used to
A) Create a jar archive
B) Debug a java program
C) Create C header file
D) Generate java documentation
 
What would happen if “String[]args” is not included as argument in the main method.
A) No error
B) Compilation error
C) Program won’t run
D) Program exit
 
For execution of DELETE SQL query in JDBC, …………. method must be used.
A) executeQuery()
B) executeDeleteQuery()
C) executeUpdate()
D) executeDelete()
 
Which method will a web browser call on a new applet?
A) main method
B) destroy method
C) execute method
D) init method
 
Which of the following is not mandatory in variable declaration?
A) a semicolon
B) an identifier
C) an assignment
D) a data type
 
When a program class implements an interface, it must provide behavior for
A) two methods defined in that interface
B) any methods in a class
C) only certain methods in that interface
D) all methods defined in that interface
 
In order to  run JSP ………………..  is required.
A) Mail Server
B) Applet viewer
C) Java Web Server
D) Database connection
 
State true of false.
i) AWT is an extended version of swing
ii) Paint( ) of Applet class cannot be overridden
A) i-false, ii-false
B) i-false,ii-true
C) i-true, ii-false
D) i-true, ii-true
 
Prepared Statement object in JDBC used to execute……….. queries.
A) Executable
B) Simple
C) High level
D) Parameterized
 
Click here to download PDF MCQ of Java for Java Proficiency test – 3
Answers:

1.       C) java.lang.Object
2.       B) Debug a java program
3.       C) Program won’t run
4.       C) executeUpdate()
5.       D) init method
6.       C) an assignment
7.       D) all methods … interface
8.       C) Java Web Server
9.       A) i-false, ii-false
10.   D) Parameterized

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