Draw a simple class diagram showing only relationships between the classes. Kid.java

Draw a simple class diagram showing only relationships between the classes.

Kid.java

public class Kid {
  
private static int idStatic=0;
private int id;
private String name;
private int age;
private char gender;
  
public Kid(String name, int age, char gender) {
super();
this.id = idStatic++;
this.name = name;
this.age = age;
this.gender = gender;
}

public static int getIdStatic() {
return idStatic;
}

public int getId() {
return id;
}

public String getName() {
return name;
}

public int getAge() {
return age;
}

public char getGender() {
return gender;
}

@Override
public String toString() {
return "Kid [id=" + id + ", name=" + name + ", age=" + age + ", gender=" + gender + "]";
}
}
Trainer.java

public class Trainer {
private static int idStatic = 0;
private int id;
private String name;
private int age;
private char gender;
private double salary;

public Trainer(String name, int age, char gender, double salary) {
super();
this.id = idStatic++;
;
this.name = name;
this.age = age;
this.gender = gender;
this.salary = salary;
}

public static int getIdStatic() {
return idStatic;
}

public int getId() {
return id;
}

public String getName() {
return name;
}

public int getAge() {
return age;
}

public char getGender() {
return gender;
}

public double getSalary() {
return salary;
}

@Override
public String toString() {
return "Trainer [id=" + id + ", name=" + name + ", age=" + age + ", gender=" + gender + ", salary=" + salary
+ "]";
}
}
Group.java

import java.util.ArrayList;

public class Group {

private static int staticNumber = 0;
private int groupNumber;
private Trainer trainer;
private String sportName;
private ArrayList<Kid> kids;
private final static int MAX_LIMIT = 10;

public Group(Trainer t, String sport) {
groupNumber = staticNumber++;
this.trainer = t;
this.sportName = sport;
kids = new ArrayList<>();
}

public static int getStaticNumber() {
return staticNumber;
}

public int getGroupNumber() {
return groupNumber;
}

public Trainer getTrainer() {
return trainer;
}

public String getSportName() {
return sportName;
}

public ArrayList<Kid> getKids() {
return kids;
}

public boolean addKid(Kid k) {
if (kids.size() < MAX_LIMIT) {
kids.add(k);
return true;
} else {
return false;
}
}

public boolean removeKid(Kid k) {
return kids.remove(k);
}

}

Kid.java

public class Kid {
  
private static int idStatic=0;
private int id;
private String name;
private int age;
private char gender;
  
public Kid(String name, int age, char gender) {
super();
this.id = idStatic++;
this.name = name;
this.age = age;
this.gender = gender;
}

public static int getIdStatic() {
return idStatic;
}

public int getId() {
return id;
}

public String getName() {
return name;
}

public int getAge() {
return age;
}

public char getGender() {
return gender;
}

@Override
public String toString() {
return "Kid [id=" + id + ", name=" + name + ", age=" + age + ", gender=" + gender + "]";
}
}
Trainer.java

public class Trainer {
private static int idStatic = 0;
private int id;
private String name;
private int age;
private char gender;
private double salary;

public Trainer(String name, int age, char gender, double salary) {
super();
this.id = idStatic++;
;
this.name = name;
this.age = age;
this.gender = gender;
this.salary = salary;
}

public static int getIdStatic() {
return idStatic;
}

public int getId() {
return id;
}

public String getName() {
return name;
}

public int getAge() {
return age;
}

public char getGender() {
return gender;
}

public double getSalary() {
return salary;
}

@Override
public String toString() {
return "Trainer [id=" + id + ", name=" + name + ", age=" + age + ", gender=" + gender + ", salary=" + salary
+ "]";
}
}
Group.java

import java.util.ArrayList;

public class Group {

private static int staticNumber = 0;
private int groupNumber;
private Trainer trainer;
private String sportName;
private ArrayList<Kid> kids;
private final static int MAX_LIMIT = 10;

public Group(Trainer t, String sport) {
groupNumber = staticNumber++;
this.trainer = t;
this.sportName = sport;
kids = new ArrayList<>();
}

public static int getStaticNumber() {
return staticNumber;
}

public int getGroupNumber() {
return groupNumber;
}

public Trainer getTrainer() {
return trainer;
}

public String getSportName() {
return sportName;
}

public ArrayList<Kid> getKids() {
return kids;
}

public boolean addKid(Kid k) {
if (kids.size() < MAX_LIMIT) {
kids.add(k);
return true;
} else {
return false;
}
}

public boolean removeKid(Kid k) {
return kids.remove(k);
}

}