What is wrong with my code? Thank you!

Question about the task

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package com.codegym.task.task05.task0510; /* Initializing cats */ public class Cat { private String name; private int weight; private String color; private int age; private String address; public void initialize(String name) { this.name = name; } public void initialize(String name, int weight, int age) { this.name = name; this.weight = weight; this.age = age; } public void initialize(String name, String color) { this.name = name; this.color = color; } public void initialize(int weight, int age) { this.name = name; this.age = age; } public void initialize( int weight, String color, String address) { this.weight = weight; this.color = color; this.address = address; } public static void main(String[] args) { } }

Create a Cat class with five initializers:
- Name,
- Name, weight, age
- Name, age (standard weight)
- Weight, color (unknown name, address and age, i.e. a homeless cat)
- Weight, color, address (someone else's pet)

The initializer's job is to make the object valid.
For example, if the weight is unknown, then you need to specify some average weight.
A cat can't weigh nothing.
The same applies to age and color.
But there may or may not be a name (i.e. name might be null).
The same applies to the address (it might be null).

Requirements:

The program must not read data from the keyboard.
The Cat class must have a String variable name.
The Cat class must have an int variable age.
The Cat class must have an int variable weight.
The Cat class must have a String variable address.
The Cat class must have a String variable color.
The class must have an initialize method that takes a name as an argument, but initializes all variables except the address.
The class must have an initialize method that takes a name, weight, and age as arguments, but initializes all variables except the address.
The class must have an initialize method that takes a name and age as arguments, and initializes all variables except the address.
The class must have an initialize method that takes a weight and color as arguments, and initializes all variables except the name and address.
The class must have an initialize method that takes a weight, color, and address as arguments, but initializes all variables except the name.

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Bryce Lindley

Level 9 , Olympia, United States

13 September 2019, 02:53

When you initialize a variable to an object you assign it a value. Right now all of your instance values have NO value; they are either assigned a default value of 0 or null which does not make the code valid since weight cannot be 0 or address cannot be null. In your initialize method you are on the right page, however remember. the keyword THIS assigns the value of the Instance value. Instead assign the value INSIDE the method :) Let me know if that helps...

Cristian

Level 16 , Bucharest, Romania

13 September 2019, 06:25

public class Cat { private String name = null; private int weight; private String color; private int age; private String address = null; public void initialize(String name) { this.name = name; this.age = 43; this.weight = 90; color = "Purple"; } public void initialize(String name, int weight, int age) { this.name = name; this.weight = weight; this.age = age; color = "Black"; } public void initialize(String name, String color) { this.name = name; this.weight = weight; this.age = age; color = "Green"; } public void initialize(int weight, int age) { this.name = name; this.age = age; weight = 80; color = "Blue"; } public void initialize( int weight, String color, String address) { this.weight = weight; this.color = color; this.address = address; color = "Red"; age = 45; } public static void main(String[] args) { } } It's OKAY ? Thanks a lot!

Cristian

Level 16 , Bucharest, Romania

13 September 2019, 11:36

I did it! Thanks a lot! package com.codegym.task.task05.task0510; /* Initializing cats */ public class Cat { private String name = null; private int weight = 15; private String color; private int age; private String address = null; public void initialize(String name) { this.name = name; this.age = 43; this.weight = 90; color = "Purple"; } public void initialize(String name, int weight, int age) { this.name = name; this.weight = weight; this.age = age; color = "Black"; } public void initialize(String name, int age) { this.name = name; this.age = age; weight = 20; color = "Green"; } public void initialize(int weight, String color) { this.weight = weight; this.color = color; age = 50; } public void initialize( int weight, String color, String address) { this.weight = weight; this.color = color; this.address = address; color = "Red"; age = 45; } public static void main(String[] args) { } }

Bryce Lindley

Level 9 , Olympia, United States

14 September 2019, 04:57

Yay!

Cristian

Level 16 , Bucharest, Romania

14 September 2019, 19:20

Yay!