What am i doing wrong?

Question about the task

Family relations

Java Syntax, Level 2, Lesson 2

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Ive tried it all! What am I doing wrong?

In the main method, create a Man object and save a reference to it in the variable man.
Also, create a Woman object and save a reference to it in the variable woman.

Hint: Use the following construct to create a Woman object and assign a reference to that object to the variable woman:
VariableType variableName = new TypeOfObjectBeingCreated();
Save a reference to the previously created Woman object in man.wife.
Save a reference to the previously created Man object in woman.husband (Hint: woman.husband = man).

Requirements:

In the main method, create a Man object and save a reference to it in the variable man.
In the main method, create a Woman object and save a reference to it in the variable woman.
In the main method, store a reference to the previously created Woman object in man.wife.
In the main method, store a reference to the previously created Man object in woman.husband.
The Man class must have 3 variables.
The Woman class must have 3 variables.

package com.codegym.task.task02.task0204; /* Family relations */ public class Solution { public static void main(String[] args) { Man man = new Man(); Woman Woman = new Woman(); woman.husband = Woman; man.Wife = Man; } public static class Man { public int age; public int height; public Woman wife; } public static class Woman { public int age; public int height; public Man husband; } }

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horst

Level 26 , Not in list

17 February 2020, 15:26

Don't worry, I know this whole Classes-and-Objects-thing can be confusing at first, but you will get there. Here are some hints: 1. Always try to distinguish between the Data Type and the variable name: The syntax of the whole thing is not too different from "normal variables" like int, double, String, etc. Your classes "Man" and "Woman" are spelled with a capital letter and they can be treated as the "Data Type". Each object of this type has a unique variable name, just as with normal, primitive types:

int number;
//int is your data type, number is your variable name
Man adam;
// Man is your data type, adam is your variable name

With that in mind, look at line 10 again (It's not a strict error, its just against convention and bad for the overview). 2. To get a better overview, use different variable names for your first code-draft: If you do something like this, it adds clarity to the whole procedure:

Man adam = new Man();
Woman eve = new Woman();
adam.wife = eve;  // Adam's wife is not some arbitrary Woman-class, neither it's adam himself
eve.husband = adam; // The same with eve's husband: not some Man-class, but a very concrete adam.

Notice that this won't be accepted by the Checker, since you will have to call your man "man" and your woman "woman" - it is just helping with getting the references right.

Samantha

Level 4 , Crofton, United States

19 February 2020, 18:39

Thanks! I think I get the whole object data type, variable thing now.

hidden #10608434

Level 8

24 April 2020, 21:10

That helped me a lot thank you! Feels so good to get it ;)