How does this piece of code work?

Question

Java

I created the variable Man(variable type) man(Variable name) = new Man()(Type of the Created Object).
How does this code work?

public static void main(String[] args) {
        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;
    }

Explain more precisely how
woman.husband = man;
man.wife = woman;
with classes Man and Woman.

Answer 1

woman stores a reference to man, from the woman class you can access the fields of the man class.
For the man class, the same is true.