Question#1
Java was created in the mid-1990s by _____ at Sun Microsystems.
a) Bjarne Stroustrup
b) Dennis Ritchie
c) James Gosling ✅- Answer
d) Ken Thompson

Question#2
The _____ allows Java programs to run on any platform with the appropriate software installed.
a) Java Runtime Environment (JRE)
b) Java Development Kit (JDK)
c) Java Virtual Machine (JVM) ✅- Answer
d) Integrated Development Environment (IDE)

Question#3
In Java, the source code is first compiled into platform-independent _____ before execution.
a) assembly
b) object file
c) bytecode ✅- Answer
d) machine code

Question#4
The feature of Java that allows developers to 'write once, run anywhere' is known as _____.
a) platform independence ✅- Answer
b) encapsulation
c) dynamic loading
d) inheritance

Question#5
Programs in Java can be written and debugged using an IDE, such as Eclipse, IntelliJ IDEA, or _____.
a) NetBeans ✅- Answer
b) Visual Studio
c) Xcode
d) PyCharm

Question#6
Java supports multiple forms of behavior for an object, a concept known as _____.
a) polymorphism ✅- Answer
b) abstraction
c) encapsulation
d) inheritance

Question#7
The principle of combining data and methods into a single unit in Java is called _____.
a) encapsulation ✅- Answer
b) inheritance
c) abstraction
d) modularity

Question#8
A Java program’s execution starts from the _____ method.
a) start
b) main ✅- Answer
c) init
d) run

Question#9
The smallest integer data type in Java is _____.
a) long
b) short
c) byte ✅- Answer
d) int

Question#10
Java’s _____ ensures automatic memory management through garbage collection.
a) API
b) JVM ✅- Answer
c) JDK
d) Compiler

Question#11
Classes in Java are blueprints for creating _____.
a) methods
b) variables
c) objects ✅- Answer
d) generics

Question#12
A collection of elements of the same data type in Java stored in contiguous memory is called an _____.
a) enum
b) object
c) array ✅- Answer
d) interface

Question#13
To define a contract of methods a class must implement, Java uses _____.
a) generics
b) superclasses
c) constructors
d) interfaces ✅- Answer

Question#14
The operator used for logical AND operations in Java is _____.
a) && ✅- Answer
b) ||
c) &
d) ^

Question#15
Java primitive data type used to represent true/false values is _____.
a) char
b) byte
c) boolean ✅- Answer
d) int

Question#16
The built-in method to print output to the console in Java is _____.
a) write()
b) PrintWriter.print()
c) System.out.println() ✅- Answer
d) Console.log()

Question#17
In Java, the '%' operator is used for _____.
a) modulus (remainder) ✅- Answer
b) exponentiation
c) bitwise and
d) division

Question#18
The 'public' keyword before a class or method in Java specifies an _____.
a) annotation
b) operator
c) access modifier ✅- Answer
d) exception handler

Question#19
Java supports _____, allowing programs to execute multiple threads concurrently.
a) multiprocessing
b) multiuser
c) multithreading ✅- Answer
d) multidimensionality

Question#20
To specify a floating-point number in Java, the literal must end with the letter _____ for a float.
a) l
b) d
c) f ✅- Answer
d) b