IT1712 Object-Oriented Programming Concepts Quiz
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Questions and Answers

What is an object's state determined by?

  • The Java package it belongs to
  • Its behaviors
  • The values of its attributes (correct)
  • The methods it inherits

    • How are objects of the same kind defined in object-oriented programming?

  • With different data types
  • By sharing the same class (correct)
  • By implementing methods
  • Through interfaces

    • What is the purpose of inheritance in Java classes?

  • To avoid repetition of programming instructions (correct)
  • To restrict access to class attributes
  • To prevent the use of methods
  • To create unrelated classes

    • What is an interface in Java?

    <p>A component that defines behaviors</p> Signup and view all the answers

    How are related classes and interfaces grouped together in Java?

    <p>Into a package</p> Signup and view all the answers

    What is the purpose of an import statement in Java?

    <p>To include classes from a package in a program or class definition</p> Signup and view all the answers

    In Java, where should each class in a package be placed?

    <p>In a separate file whose name begins with the name of the class</p> Signup and view all the answers

    Why is it not necessary for a class to be in the same folder as other classes in the package to use them?

    <p>Due to the use of import statements in Java</p> Signup and view all the answers

    Which syntax is used to import all classes from a package in Java?

    <p>import java.util.*;</p> Signup and view all the answers

    What does the file name for a Java class in a package usually begin with?

    <p>The name of the class</p> Signup and view all the answers

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