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Java Quiz
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Welcome to the Java Quiz! Let's test your knowledge.
Quiz Questions
What is the size of an int data type in Java?
8 bits
16 bits
32 bits
64 bits
Which of these is not a Java keyword?
class
interface
extends
implements
unsigned
To define project dependencies
Which company originally developed Java?
Apple
Google
Sun Microsystems
Microsoft
Which method is used to start a thread in Java?
start()
begin()
Which of these is a valid way to create an array in Java?
int[] arr = new int[5];
int arr[] = new int(5);
int arr[5] = new int[];
int[] arr = int[5];
Use the `quarkus-kubernetes` extension
Which of these exceptions is thrown when a division by zero occurs?
NullPointerException
NumberFormatException
ArithmeticException
ArrayIndexOutOfBoundsException
Which of the following is a marker interface?
Serializable
Comparable
Runnable
Cloneable
Which of these is not a feature of OOP in Java?
Inheritance
Encapsulation
Polymorphism
Multithreading
Which of the following is not a primitive data type in Java?
int
float
boolean
String
What is the default value of a boolean variable in Java?
true
false
0
null
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