I don't understand the error I am getting.

Question about the task

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Can someone please explain this error? Based on what I understand of the code, it is correct. com/codegym/task/task07/task0724/Solution.java:10: error: constructor Human in class com.codegym.task.task07.task0724.Solution.Human cannot be applied to given types; Human GF1 = new Human ("Pops", true, 71); ^ required: no arguments found: java.lang.String,boolean,int reason: actual and formal argument lists differ in length

Create the Human class with String name, boolean sex, int age, Human father, and Human mother fields. Create and populate objects so that we end up with: Two grandfathers, two grandmothers, one father, one mother, and three children. Display the objects on the screen.

Note:
If you write your own String toString() method in the Human class, then it will be used to display the object on the screen.

Example output:
Name: Anna, sex: female, age: 21, father: Paul, mother: Kate Name: Kate, sex: female, age: 55 Name: Ben, sex: male, age: 2, father: Michael, mother: Anna …

Requirements:

The program must not read data from the keyboard.
Add the following fields to the Human class: String name, boolean sex, int age, Human father, and Human mother.
Add a constructor: public Human(String name, boolean sex, int age).
Add a constructor: public Human(String name, boolean sex, int age, Human father, Human mother).
Create 9 different Human objects (4 objects without a father and mother and 5 objects with them).
Display all the created objects on the screen.

package com.codegym.task.task07.task0724; /* Family census */ public class Solution { public static void main(String[] args) { Human GF1 = new Human ("Pops", true, 71); Human GF2 = new Human ("Gramps", true, 73); Human GM1 = new Human ("Ma", false, 74); Human GM2 = new Human ("Nana", false, 72); Human father = new Human ("David", true, 48, GF1, GM1); Human mother = new Human ("Mary", false, 46, GF2, GM2); Human kid1 = new Human ("Jake", true, 18, father, mother); Human kid2 = new Human ("Catherine", false, 16, father, mother); Human kid3 = new Human ("David Lee", true, 14, father, mother); GF1.toString(); GF2.toString(); GM1.toString(); GM2.toString(); father.toString(); mother.toString(); kid1.toString(); kid2.toString(); kid3.toString();// write your code here } public static class Human { String name; boolean sex; int age; Human father; Human mother;// write your code here public String toString() { String text = ""; text += "Name: " + this.name; text += ", sex: " + (this.sex ? "male" : "female"); text += ", age: " + this.age; if (this.father != null) text += ", father: " + this.father.name; if (this.mother != null) text += ", mother: " + this.mother.name; return text; } } }

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Sela

Level 20 , Poland

26 June 2020, 09:39

in addition to Brandon watch the return type and body of the method

toString()

this method does not print anything so you cannot just use the statement

GF1.toString();

to print to the console you have to use

System.out.println(GF1.toString());

or just

System.out.println(GF1);

after these changes your code will pass the test

Brandon

Level 9 , Toledo, United States

4 June 2020, 18:54

useful

You didn't make any constructors in your human class, so the code has no idea what to do with anything in the (). Read the requirements further, it gives an example of the constructors you need to add.