JAVA Programming Questions with Answers
(100% Correct Answers)
object
Ans: capable of receiving messages, processing information or data, and sending messages
to another/a class created at runtime
Class
Ans: a blueprint which describes methods, functions, and constructors
Encapsulation
Ans: wrapping data in a single unit
Data Abstraction
Ans: hiding data; Hiding the irrelevant features and exposing only the needed features of a
particular object
Polymorphism
Ans: the same class name can have many different functions
Inheritance
Ans: transferring the properties of one class to another
Platform Independence
Ans: Java's power comes from the ability to compile code that can be read on any
computer that has the Java Virtual Machine installed.
Object-Oriented
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, Ans: Java is object-oriented, thus each program is built from objects and classes.
Compiler/Interpreter
Ans: The Java compiler translates the original code into bytecode so that any computer
with JVM installed can run the compiled code, regardless of platform or operating system.
Robust
Ans: Before executing a program, JVM conducts an overall checking of the program and
gives reports of any malfunction.Thus, JVM is a robust programming language.
Memory Management
Ans: Memory management is automatically handled by Java Virtual Machine, which means
the programmer does not need to write code to manage memory.
Performance
Ans: Properly written Java programs execute quickly and use little memory.
Networking
Ans: Java works on internet and intranet applications alike.
Javadoc
Ans: To avoid mistakes and problems later as the program becomes longer and complex,
you need to include comment statements in your program to identify the program or
section of code's purpose/this documentation of comments
Comment Opener
Ans: /*** [line for comment] ***/
operators
Ans: ...
iteration statements
© 2025 All rights reserved
(100% Correct Answers)
object
Ans: capable of receiving messages, processing information or data, and sending messages
to another/a class created at runtime
Class
Ans: a blueprint which describes methods, functions, and constructors
Encapsulation
Ans: wrapping data in a single unit
Data Abstraction
Ans: hiding data; Hiding the irrelevant features and exposing only the needed features of a
particular object
Polymorphism
Ans: the same class name can have many different functions
Inheritance
Ans: transferring the properties of one class to another
Platform Independence
Ans: Java's power comes from the ability to compile code that can be read on any
computer that has the Java Virtual Machine installed.
Object-Oriented
© 2025 All rights reserved
, Ans: Java is object-oriented, thus each program is built from objects and classes.
Compiler/Interpreter
Ans: The Java compiler translates the original code into bytecode so that any computer
with JVM installed can run the compiled code, regardless of platform or operating system.
Robust
Ans: Before executing a program, JVM conducts an overall checking of the program and
gives reports of any malfunction.Thus, JVM is a robust programming language.
Memory Management
Ans: Memory management is automatically handled by Java Virtual Machine, which means
the programmer does not need to write code to manage memory.
Performance
Ans: Properly written Java programs execute quickly and use little memory.
Networking
Ans: Java works on internet and intranet applications alike.
Javadoc
Ans: To avoid mistakes and problems later as the program becomes longer and complex,
you need to include comment statements in your program to identify the program or
section of code's purpose/this documentation of comments
Comment Opener
Ans: /*** [line for comment] ***/
operators
Ans: ...
iteration statements
© 2025 All rights reserved
