What am I missing about passing values to an object during instantiation?

Question

I'm in my first few weeks of java and I understand the relationships between these concepts, but I'm trying to pass values to a child object during instantiation and I'm missing something about how the pieces fit together. Why am I getting errors and how do I structure my code/what syntax am I missing to be able to create an instance of child and then print that object's values?

package child;

import static child.Gender.FEMALE;
import static child.Gender.MALE;
public class Child {

    private String name;
    private int age;
    private Gender Gender;

    public void eat(){}

    public void sleep(){}

    public void cry(){}

    public Child main(String name, int age, Gender gender) {
        this.name = name;
        this.age = age;
        this.Gender = Gender;
        return null;
    }


    Child childOne = new Child(String "tom", int 3, Gender MALE);

    System.out.println(childOne);
    //Child childTwo = new Child();
    //Child childThree = new Child("Tammy",1,FEMALE);

}

Answer 1

You are confusing a constructor and the main method.

public class Child {
    private String name;
    private int age;
    private Gender gender;

    public void eat(){}

    public void sleep(){}

    public void cry(){}

    public Child (String name, int age, Gender gender) {
        this.name = name;
        this.age = age;
        this.gender = gender;
    }

    public void main(String[] args) {
        Child childOne = new Child("tom", 3, Gender.MALE);
        System.out.println(childOne);    
    }
}

Also, when calling a function, don't add the type of the argument you are passing.