What is wrong? ?

Question about the task

Family relations

Java Syntax, Level 2, Lesson 2

Under discussion

What is 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) { //write your code here Man man = new Man(); Woman woman = new Woman(); Woman.husband = man; Man.wife = woman; } 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; } }

Comments (5)

Popular
New
Old

You must be signed in to leave a comment

horst

Level 26 , Not in list

1 January 2020, 11:39

Due to the similarity of naming those classes and objects I completely understand why this can be confusing. Just remember that - the name of your concrete object/instance is a variable and starts with a small letter, just like any standard variable (int number); - the name of your class is a data type and starts with a capital letter, just like other complex data types (String text;) (For your own work, you can always assign a different name to those objects to avoid confusion, e.g. Man adam = new Man(); Woman eve = new Woman(); But be aware that this might not fulfill testing conditions here on CodeGym. If they ask for an instance called "woman", then "eve" is likely to be considered wrong.)

Alban

Level 14 , Kukes, Albania

2 January 2020, 21:01

but I don't understand where's the mistake in my code?

horst

Level 26 , Not in list

3 January 2020, 14:43

Have a look at lines 12 and 13 of your code and try to figure out which one of the words there stands for a general Datatype (i.e. the Class of a whole set of individual objects) and which one is a variable name (i.e. the identifier of a specific object). Think about whether you have to assign a husband to a specific individual woman or to a whole Class of Women. (As stated above: In your head you can give the individual instance of a Man an individual variable name like "adam" to distinguish between class and object.)

Alban

Level 14 , Kukes, Albania

6 January 2020, 14:37

I get the choose I mistake at line 12-13. My mistake , was I had to minimize the first character of Woman and Man (woman.husband = ,,, man.wife =,,,)

Nyerges Ferenc

Level 26 , Bükkábrány, Hungary

30 December 2019, 20:50

You should set the variable of the object you created - doublecheck the assignment.