Java programming Questions & Answers (Compiled from UPSC, SSC ,PSC ,IBPS previous question papers)

Smallest individual unit in java program is known as
string
literal
token
operator

Main method parameter has which type of data type
int
char
string
double

javah stands for
java compiler
java interpreter
java dissasamebler
java header file

Hot java is
System software
Web browser
IDE
Java environment

Which keyword represents object of the present class
interface
package
this
static

Which keyword is used while using interface
extend
implements
throw
throws

Executable applet is
.applet file
.java html
.java file
.class file

Which driver is efficient and always preferable for using JDBC applications
Type-4 driver
Type-3 driver
Type-2 driver
Type-1 driver

In which we clone the object and their constituent parts
Shallow cloning
Deep cloning
Both of above
None of above

The inner class can access private members of the outer class
False
True

Which command disassembles a class file
javaamd
javacmd
java
javap

There is no default transaction attribute for an EJB
False
True

Which method of the Applet class displays the result of applet code on screen
run() method
paint() method
drawString() method
main() method

Applet always executed on
Client side
Server Side

Interfaces helps in which type of inheritance
Multiple inheritance
Multilevel inheritance
Hierarchical inheritance
None of above

____ allows java code to run in the JVM to call and be called by native applications
JFI
JNI
NJI
FJI

Which method of java is invoked by JVM to reclaim the inaccessible memory location
reclaim() method
final() method
finalize() method
both b and c

Which driver is called as thin-driver in JDBC
Type-1 driver
Type-2 driver
Type-3 driver
Type-4 driver

what is jdb
java compiler
java Interpreter
java Disassemble
java debugger

What do you mean by javap
java compiler
java Interpreter
java Disassemble
java debugger

Which of the following command is used to compile the Java program
java
javac
javap
none of these

What is meaning of jar
java archived
java array
java architecture
none of these

Which command is used for interpretation of java program
Java
javac
javap
none of above

Java intermediate code is known as
First code
Mid code
Byte code
None of above

Which is the predefined package
Lang package
io package
util package
All of above

Process of creating exact copy of the existing object is called
cloning
overloading
overriding
coping

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Java programming Question Answers, PSC, UPSC, IBPS, SSC Previous Papers