有知道这个uml图怎么写代码的嘛？(语言-java)

有人知道这个uml图怎么看代码怎么写吗？JAVA的，来个人呗！！

class Person{
   String name;
   char sex;
   int age;
   
   public Person(String name, char sex, int age){
      this.name = name;
      this.sex= sex;
      this.age= age;
   }

  public void toString(){
      System.out.println("Person: [ name = " + this.name +  ", sex = " + this.sex + ", age = " + this.age + "]")
  }
  
}