Understanding Constructors vs. Methods in Java

In Java, aconstructormustnot have a return type.

The followingis NOT a constructorbut aregular method:

java

void Versailles() { // This is NOT a constructor!

Correct way to define a constructor:

java

public Versailles() { // Constructor must not have a return type

Since there isno constructor explicitly defined,Java provides a default no-argument constructor, which does nothing.

Why Does Compilation Fail?

void Versailles() is interpreted as amethod,not a constructor.

This means the default constructor (which does nothing) is called.

Since the method Versailles() is never called, the object fields remain uninitialized.

If the constructor were correctly defined, the output would be:

nginx

Hall of Mirrors has 17 mirrors.

The gardens cover 800 hectares.

How to Fix It

java

public Versailles() { // Corrected constructor

this.mirrorsCount = 17;

this.gardensHectares = 800;

System.out.println("Hall of Mirrors has " + mirrorsCount + " mirrors.");

System.out.println("The gardens cover " + gardensHectares + " hectares.");

}

Thus, the correct answer is:Compilation fails at line n1.

References:

Java SE 21 - Constructors

Java SE 21 - Methods vs. Constructors