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Questions and Answers
Which term refers to a mechanism that allows a class to inherit properties and behaviors from another class?
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What is the process of simplifying complex systems by modeling classes based on essential properties and behaviors they possess?
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What is a blueprint or template for creating objects?
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Which term refers to the ability of objects of different types to be treated as objects of a common type?
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What restricts access to some components, preventing accidental modification of data?
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Which promotes code reuse and establishes a relationship between classes?
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What is a collection of abstract methods that defines a contract for classes that implement it?
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Which involves having multiple methods with the same name in a class, but with different parameter types or a different number of parameters?
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What represents an instance of a class and encapsulates data and behavior?
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What is the purpose of the finally block in a try-catch construct?
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Which class is the root for all exceptions and errors in Java?
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What is the purpose of the throws clause in a method signature?
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Which type of exception is derived from the Exception class but is not checked at compile-time?
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What is the process by which an exception is thrown from one method to another or from one part of the program to another called?
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Which exception is thrown when trying to access a file that does not exist?
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What is the category of exceptions that are not meant to be caught or handled by the application?
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Which exception is thrown when an arithmetic operation results in an exceptional condition, such as division by zero?
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What is method overriding in Java?
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What is an abstract class in Java?
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What are getter and setter methods used for in Java?
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What is the purpose of a constructor in Java?
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What do static variables and methods belong to in Java?
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What does the method signature of a method in Java consist of?
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What is the purpose of method overloading in Java?
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What are instance variables in Java?
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What do access modifiers control in Java?
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What does the Java Collections framework provide?
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What is the technical term for Java stopping and generating an error message?
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What is the purpose of the try statement in Java?
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What does the catch statement in Java allow you to do?
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What is the purpose of the finally statement in Java?
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What does the throw statement in Java allow you to do?
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Which keyword is used to create a custom error in Java?
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What is the purpose of the try-catch block in Java?
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What is the purpose of the catch block in Java?
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What is the key difference between a built-in array and an ArrayList in Java?
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How is an element accessed in an ArrayList in Java?
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What method is used to remove all elements from an ArrayList in Java?
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What type of elements can be stored in an ArrayList in Java?
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How is the size of an ArrayList obtained in Java?
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What is the purpose of the clear() method in a HashSet in Java?
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What is the equivalent wrapper class for int in Java?
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Which method is used to add items to a HashSet in Java?
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What does the contains() method do in a HashSet in Java?
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What is the type of items that can be stored in a HashSet in Java?
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What is the key advantage of Object-Oriented Programming (OOP) over procedural programming?
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What is the purpose of polymorphism in Object-Oriented Programming?
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What is the relationship between a class and an object in Object-Oriented Programming?
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What is the primary focus of procedural programming?
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What does the term 'DRY' stand for in the context of Object-Oriented Programming?
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