MCQ of Java - 2 [Solved PDF]

The JDBC-ODBC bridge allows ……….. to be used as ………..
A) JDBC drivers, ODBC drivers
B) Drivers, Application
C) ODBC drivers, JDBC drivers
D) Application, drivers
 
Which of the following is true about Java.
A) Java does not support overloading.
B) Java has replaced the destructor function of C++
C) There are no header files in Java.
D) All of the above.
 
……………. are not machine instructions and therefore, Java interpreter generates machine code that can be directly executed by the machine that is running the Java program.
A) Compiled Instructions
B) Compiled code
C) byte code
D) Java mid code
 
The command javac
A) Converts a java program into binary code
B) Converts a java program into bytecode
C) Converts a java program into machine language
D) None of the above.
 
Which of the following is not the java primitive type
A) Byte
B) Float
C) Character
D) Long double
 
Command to execute compiled java program is
A) java
B) javac
C) run
D) javaw
 
Java Servlet
i) is key component of server side java development
ii) is a small pluggable extension to a server that enhances functionality
iii) runs only in Windows Operating System
iv) allows developers to customize any java enabled server
A) i, ii & iii are ture
B) i, iii & iv are true
C) ii, iii & iv are true
D) i, ii & iv are true
 
Inner classes are
A) anonymous classes
B) nested classes
C) sub classes
D) derived classes
 
How many times does the following code segment execute
int x=1, y=10, z=1;
do{y-; x++; y-=2; y=z; z++} while (y>1 && z<10);
A) 1
B) 10
C) 5
D) infinite
 
State weather the following statement is true or false for EJB.
EJB exists in the middle-tier
EJB specifies an execution environment
EJB supports transaction processing
A) 1-true, 2. true, 3. true
B) 1- true, 2. false, 3. true
C) 1- false, 2- false, 3- false
D) 1-true, 2-true, 3-false
 
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