в чем проблема помогите

package com.javarush.task.task02.task0204; /* О семейных отношениях */ public class Solution { public static void main(String[] args) { Man man = new Man(); Woman woman = new Woman(); man.wife = Woman;). woman.husband = 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; } }