What am I doing wrong?

Question about the task

Under discussion

I have tried a couple of different things, but I am at a loss. Perhaps I am misinterpreting the requirements? A hint would be appreciated.

Imagine yourself as a car manufacturer and find a solution that get the factory working again. To do this, you need to add the initialization of fields in the constructors with the corresponding parameters. If a parameter is absent, then you need to initialize the field with the default value. For the year field, this is the current year (4321), and for the color field, it is Orange.

Requirements:

The CarConcern class must have four private final fields.
The CarConcern class must have a public constructor that has three parameters and initializes the corresponding fields.
The CarConcern class must have a public constructor that has two parameters and initializes the corresponding fields.
The CarConcern class must have a public constructor that has one parameter and initializes the corresponding fields.

package en.codegym.task.pro.task10.task1004; /* Need for speed */ public class CarConcern { private final String manufacturer = "Lamborghini"; private final String model; private final int year; private final String color; public CarConcern(String model, int year, String color) { this.model = model; this.year = 4321; this.color = "Orange"; } public CarConcern(String model, int year) { this.model = model; this.year = 4321; this.color = "Orange"; } public CarConcern(String model) { this.model = model; this.year = 4321; this.color = "Orange"; } }

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Thomas

Level 41 , Bayreuth, Germany

15 May, 17:42

useful

To my understanding you're just supposed to use these 'default values' if a value is not provided. The first constructor in line 13 eg. provides all these values as parameters. Means you should not use any of those defaults. In the second constructor just the color is missing. So you use the color default (Orange). Only the third constructor is missing color and year and you use both of these default values. btw., you can make use of the first constructor from inside the second and third constructors. Just call it like (for the third one):

public CarConcern(String model) {
    this(model, 4321, "Orange");
}

Bob

Level 10 , United States of America, United States

16 May, 00:19

Thank you! That was helpful for completing the task. I am still unsure how one is supposed to conclude that, so I will have to review the differnce between field and parameter. Thank you again!