Java Basics
Test Your Java Knowledge
Welcome to the Java Basics Quiz! This quiz is designed to challenge your understanding of Java programming concepts. Whether you are a beginner or looking to brush up on your skills, this quiz is for you.
- 11 engaging questions
- Multiple choice and checkbox formats
- Find out if you're ready to code in Java!
Which of the following declarations does not compile?
Int num1, num2;
Double num1, int num2 = 0;
Int num1, num2 = 0;
Int num1 = 0, num2 = 0;
Which of the following statements are correct?
String is immutable
String Buffer is mutable
String Builder is mutable
String is mutable
How many objects will be created for the following codes:
A. String str1 = "Milestone";
String str2 = new String("Milestone");
B. String str1 = "Milestone";
String str2 = "Milestone";
C. String str1 = new String("Milestone");
String str2 = new String("Milestone");
A:2, B:1, C:2
A:3, B:1, C:2
A:2, B:1, C:3
A:2, B:2, C:2
Which of the following statements are incorrect?
Static method cannot access non-static methods and variables.
Static class can be inherited.
Static method can be overridden
Static variable can be accessed without object
Which option is false about the final keyword?
A final class cannot be extended.
A final method cannot be overridden in its subclasses.
A final method can be inherited.
A final class cannot extend other classes.
Which feature of OOPS derives the class from another class?
Inheritance
Data hiding
Encapsulation
Polymorphism
Which among the following cannot be used for the concept of polymorphism?
Static member function
Constructor Overloading
Member function overloading
Global member function
Java is pass by reference
True
False
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