Helppp

Question about the task

Max constructors

Java Syntax, Level 5, Lesson 9

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helpppl!!!!!

package com.codegym.task.task05.task0522; /* Max constructors */ public class Circle { public double x; public double y; public double radius; //write your code here public void Circle(double x) { this.x = x; } public void Circle(double y) { this.y = y; } public void Circle(double radius) { this.radius = radius; } public void Circle(double x, double y) { this.x = x; this.y = y; } public void Circle() { this(4,4,4); this.y = y; this.x = x; this.radius = radius; } public static void main(String[] args) { } }

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Guadalupe Gagnon

Level 37 , Tampa, United States

24 September 2020, 19:08

Hello, #1 Constructors should not have a return value. Remove the keyword 'void' from each constructor. #2

Circle(double x) {}
Circle(double y) {}
Circle(double radius) {}

These three all have the same exact signature. The signature is the name and the arguments (the name 'circle' and a 'double' argument in this code). It is illegal to have more than one constructors (or method) with identical signatures. #3

public void Circle() {
   this(4, 4, 4);
   this.y = y;
   this.x = x;
   this.radius = radius;
}

There are no local variables x, y, and radius here. The lines 3, 4, and 5 would make no sense to the computer. Also line two wouldn't work because you don't have a constructor that accepts 3 numbers. *Tips* - In this task you can have a total of 4 constructors with unique sigantures, starting with 0 arguments up to three. - Practice using proper code styling to make your code easier to read. This is going to help in the long term with code maintenance when you, or other programmers, don't need to first sort out the code. An example, though by all means not the only way, of clean styling would be this:

public class Circle {
    public double x;
    public double y;
    public double radius;

    public void Circle(double x) {
        this.x = x;
    }

    public void Circle(double y) {
        this.y = y;
    }

    public void Circle(double radius) {
        this.radius = radius;
    }

    public void Circle(double x, double y) {
        this.x = x;
        this.y = y;
    }

    public void Circle() {
        this(4, 4, 4);
        this.y = y;
        this.x = x;
        this.radius = radius;
    }

    public static void main(String[] args) {
    }
}