In a Java application, how does encapsulation help in safeguarding sensitive information while still allowing controlled access?

hard📝 Application Q8 of 15

Java - Encapsulation

ABy using static variables instead of instance variables

BBy making all variables public so they can be accessed directly

CBy avoiding the use of methods to access variables

DBy declaring variables private and providing public getter and setter methods

Step-by-Step Solution

Solution:

Step 1: Understand encapsulation concept
Encapsulation restricts direct access to class variables by declaring them private.
Step 2: Controlled access via methods
Public getter and setter methods allow controlled reading and modification of private variables.
Step 3: Benefits
This approach protects sensitive data from unauthorized access and allows validation or logic in setters.
Final Answer:
By declaring variables private and providing public getter and setter methods -> Option D
Quick Check:
Private variables + public methods = encapsulation [OK]

Quick Trick: Use private variables with public getters/setters [OK]

Common Mistakes:

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