[Solved] Identify the issue in this Java class related to encapsulation:class Product { private double price; public double getPrice() { return price; } public void setPrice(double price) { price = price; } } | Java

Java - Encapsulation

Identify the issue in this Java class related to encapsulation:

class Product {
  private double price;
  public double getPrice() { return price; }
  public void setPrice(double price) { price = price; }
}

AThe class should not have setter methods

BThe getter method should be private

CThe variable price should be public

DThe setter method does not update the instance variable correctly

Step-by-Step Solution

Solution:

Step 1: Review the setter method
The setter method parameter price shadows the instance variable price. The assignment price = price; assigns the parameter to itself, not the instance variable.
Step 2: Correct way to assign
Use this.price = price; to assign the parameter value to the instance variable.
Final Answer:
The setter method does not update the instance variable correctly -> Option D
Quick Check:
Use 'this' to refer to instance variables [OK]

Quick Trick: Use 'this' to assign instance variables in setters [OK]

Common Mistakes:

Master "Encapsulation" in Java

9 interactive learning modes - each teaches the same concept differently

More Java Quizzes

Identify the issue in this Java class related to encapsulation: