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Questions and Answers
What is the purpose of the 'new' keyword in Java?
What is the purpose of the 'new' keyword in Java?
- To initialize a variable with a new value
- To declare a new class in the program
- To define a new method in a class
- To create a new object in memory (correct)
In Java, what is the default access modifier for instance variables?
In Java, what is the default access modifier for instance variables?
- Package-private (correct)
- Private
- Public
- Protected
What is the role of a constructor in Java?
What is the role of a constructor in Java?
- Returning a value from a method
- Controlling access to class variables
- Defining new methods in a class
- Initializing the state of an object (correct)
How is an object created in Java?
How is an object created in Java?
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What is the purpose of declaring a reference variable for an object in Java?
What is the purpose of declaring a reference variable for an object in Java?
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What is the purpose of the 'new' keyword in Java when creating an object?
What is the purpose of the 'new' keyword in Java when creating an object?
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What is the default access modifier for instance variables in the Person class?
What is the default access modifier for instance variables in the Person class?
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What does it mean to 'manipulate objects' in Java?
What does it mean to 'manipulate objects' in Java?
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What is the role of a constructor in Java?
What is the role of a constructor in Java?
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Why is it necessary to declare a reference variable for an object in Java?
Why is it necessary to declare a reference variable for an object in Java?
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