10 Questions
What is the main purpose of encapsulation in object-oriented programming?
To combine data and actions into a single unit
Which method should be used in Java for comparing two objects of a class type?
equals() method
What does a private method in a class prevent from happening within the class?
Invoking methods in other classes
In Java, what is stored in a variable of a class type?
Memory address of the object
What are class types in Java considered as?
Reference types whose variables hold memory addresses
What is the purpose of using the void keyword in a method declaration?
To specify that the method does not return a value
What is the difference between a parameter and an argument in a method?
A parameter is the actual value passed when the method is invoked; an argument is a list of variables in a method declaration.
Why must the data type of the return value match the declared return type in a method?
To maintain data type consistency in the program
What do local variables refer to in Java programming?
Variables declared within a method definition and only visible within it
Why is information hiding important in object-oriented programming?
To simplify use and understanding of object components
This quiz covers the concepts of classes, methods, and definitions in IT1712. It includes topics like the void keyword, parameters vs arguments, and the importance of matching the return value data type with the declared return type. Instance variables are also discussed in this quiz.
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