Object-oriented programming · interview question

In the following code, what does 'this.price' refer to? public class Product { private double price; public Product(double price) { this.price = price; } }?

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java

public class Product {
  private double price;
  public Product(double price) {
    this.price = price;
  }
}

The class field 'price'.A static field of the class.A local variable inside the constructor.The parameter 'price'.

Answer and explanation

Correct answer

A. The class field 'price'.

'this.price' refers to the class field 'price'. It is used to distinguish the class field from the constructor parameter with the same name.

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