Java - Static Keyword
You want to count how many times a method is called across all objects of a class. Which approach is best?
You want to count how many times a method is called across all objects of a class. Which approach is best?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand counting across all objects
To count calls across all objects, the counter must be shared by all instances, so it must be static.Step 2: Evaluate other options
Instance variables count per object, local variables reset each call, and creating new objects won't track method calls properly.Final Answer:
Use a static variable incremented inside the method -> Option AQuick Check:
Shared counter needs static variable = C [OK]
Quick Trick: Use static variable to share count across all objects [OK]
Common Mistakes:
- Using instance variable which counts per object only
- Using local variable which resets every call
- Counting in constructor unrelated to method calls
Master "Static Keyword" in Java
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Java Quizzes