Practice The This Keyword (5.5) - Objects - ICSE 11 Computer Applications

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9 questions

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Exercise
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6 sample questions

Question 1.
What does the 'this' keyword refer to in a class?
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Think about how you identify a specific object from a class.
Question 2.
Why is 'this' useful when parameter names match instance variable names?
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Consider how variables might get mixed up.
3Question 3.
What does the 'this' keyword refer to?
- The class itself
- The current object
- A static variable
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Consider what 'this' indicates in a sentence.
4Question 4.
True or False: The 'this' keyword can only be used in constructors.
- True
- False
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Think about all the places within a class you can refer to 'this'.
Question 5.
Create a Java class that utilizes the 'this' keyword to implement a method that updates instance variables correctly, even when parameters share names. Write a detailed code snippet.
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Make sure to demonstrate how 'this' resolves the ambiguity.
Question 6.
Design a scenario in a Java application where neglecting to use the 'this' keyword creates an unexpected behavior. Describe the consequences.
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Think of how attributes get set in various methods.

5 more questions in this section. Enroll free to practise them all.