Java - Packages and Access Control
You want to create a Java class with a public method that can be called from any other class, but the class itself should only be accessible within its package. Which of the following is correct?
You want to create a Java class with a public method that can be called from any other class, but the class itself should only be accessible within its package. Which of the following is correct?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand class access modifiers
Classes without public are package-private, so accessible only within the package.Step 2: Understand method access modifiers
Methods declared public inside a package-private class are accessible from other classes in the same package.Step 3: Analyze options
Declare the class without public and the method as public. matches the requirement: class package-private, method public. Declare both the class and method as public. makes class public (accessible everywhere). Declare the class as public and the method as private. hides method. Declare the class as private and the method as public. is invalid because classes cannot be private.Final Answer:
Declare the class without public and the method as public. -> Option DQuick Check:
Class package-private + public method = accessible in package [OK]
Quick Trick: Class without public is package-private; method public means accessible inside package [OK]
Common Mistakes:
- Thinking class can be private
- Assuming public class needed for public method
- Confusing method access with class access
Master "Packages and Access Control" in Java
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