[Solved] In Java, what is the effect of declaring a class variable as private? — Ans: It restricts access to the variable only within the class it is declared. | Java

Java - Encapsulation

In Java, what is the effect of declaring a class variable as private?

AIt makes the variable globally accessible.

BIt allows the variable to be accessed by any class in the same package.

CIt makes the variable accessible only to subclasses.

DIt restricts access to the variable only within the class it is declared.

Step-by-Step Solution

Solution:

Step 1: Understand access modifiers
Private variables are accessible only within the class they are declared in.
Step 2: Compare with other access levels
Package-private, protected, and public allow broader access, but private is the most restrictive.
Final Answer:
It restricts access to the variable only within the class it is declared. -> Option D
Quick Check:
Private means class-only access [OK]

Quick Trick: Private means accessible only inside the class [OK]

Common Mistakes:

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In Java, what is the effect of declaring a class variable as private?