L-1 Grade 9 Objective questions

_____________ is a Java program that can be executed as a single program and does not require any browser.

• Java Application

• Java Applet

• Java Virtual Machine

• JDK

In 1995, Java was first launched by ______________

• Sun Microsystems

• Oracle

• Netscape Navigator Internet browser

It is a software that converts Bytecode to machine code

• JVM

• Compiler

• Loader

• JIT (Just in time) compiler

BlueJ is an IDE(Integrated Development Kit) which includes

• Compiler

• Editor

• Debugger

• Project Manager

• Syntax Highlighting

WORA (Write Once Run Anywhere) concept is followed by one of the feature of Java

• Robust

• Case sensitive

• Portable / Platform Independent

• Object Oriented

• Simple & secure

_________ is the controlling method of a Java program

• main( )

• Main( )

• class

• object

Given the situation, Identify the OOP concept

Although Sonu Nigam is a singer, he is also a very good mimicry artist

• Data Abstraction

• Encapsulation

• Inheritance

• Polymorphism

The communication between objects of a class (through functions) is called __________

• Data communication

• Message passing/Intercommunication

• Function passing

• Object communication

____________ contains Packages (in-built functions) which can be imported in our program.

• JRE (Java Runtime Environment)

• JCL (Java Class Library)

• BlueJ

• Java Applets

____________ includes tools like Compiler, Interpreter, Java libraries, etc.

• JDK

• BlueJ

• JRE

• Java Application