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