Practice Lifetime Of Class Variables (8.5.3) - Statements and Scope

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6 sample questions

Question 1.
What is a class variable?
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Think about shared data among objects.
Question 2.
When is a class variable created?
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Consider the class lifecycle.
3Question 3.
What happens to class variables when a class is loaded?
- They are created
- They are destroyed
- They are set to null
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Think about the class loading process.
4Question 4.
Class variables can be accessed only through instances of the class.
- True
- False
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Remember how static access works.
Question 5.
Create a Java class with a static variable and multiple objects modifying it. Show the output of the modifications.
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Think about how a static field is modified across different instances.
Question 6.
Discuss the impact of static variables in a multi-threaded environment. How would you ensure thread safety?
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Consider how threads may access shared data and where issues might arise.

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