Конструкторы и списки

import java.util.Arrays;
 
public class App {
 
 
 
    public static void main(String[] args) {
            System.out.println("Fitness App");
 
 
            String[] muscleGroupChest = new String[0];
            String[] muscleGroupLegs = new String[0];
            String[] muscleGroupArms = new String[0];
            String[] muscleGroupBack = new String[0];
            String[] muscleGroupShoulders = new String[0];
            String[] muscleGroupAbs = new String[0];
 
            Equipment ellipse = new Equipment("Leg press", "Weight training", 60, 5,  muscleGroupBack);
                Equipment legpress = new Equipment("Ellipse", "Cardio", 500, 45, muscleGroupLegs);
 
                muscleGroupChest = new String[] {MuscleGroup.LOWERCHEST, MuscleGroup.MIDDLECHEST, MuscleGroup.UPPERCHEST};
                muscleGroupLegs = new String[]{MuscleGroup.QUADS, MuscleGroup.HAMSTRINGS, MuscleGroup.CALVES, MuscleGroup.HIPS};
                muscleGroupArms = new String[] {MuscleGroup.BICEPS, MuscleGroup.TRICEPS, MuscleGroup.FOREARMS};
                muscleGroupBack = new String[] {MuscleGroup.LOWERBACK, MuscleGroup.MIDDLEBACK, MuscleGroup.TRAPS};
                muscleGroupShoulders = new String[] {MuscleGroup.DELTS};
                muscleGroupAbs = new String[]{MuscleGroup.LOWERABS, MuscleGroup.UPPERABS};
 
                Training t1 = new Training(50, "13.04.2018", ellipse);
 
                Training t2 = new Training(5,"18.04.2018", legpress);
 
 
 
 
            System.out.println("First equipment : " + ellipse.getEquipname() +
                    " Equipment type: " + ellipse.getEquiptype() +
                    " Max training duration: " + ellipse.getMaxTrainingsDuration() +
                    " Ccal per hour: " + ellipse.getCcalprohour());
            System.out.println(" Trained muscle group: " + Arrays.toString( muscleGroupLegs) + " , "
                    + Arrays.toString(muscleGroupBack) + " , " + Arrays.toString( muscleGroupChest));
 
            System.out.println("Second equipment : " + legpress.getEquipname() +
                    " Equipment type:: "   + legpress.getEquiptype() +
                    " Max training duration:  " + legpress.getMaxTrainingsDuration() +
                    " Ccal per hour: " + legpress.getCcalprohour());
            System.out.println(" Trained muscle group: " + Arrays.toString( muscleGroupLegs));
 
        }
    }

public class Equipment {
        private String equipname;
        private String equiptype;
        private int maxTrainingsDuration;
        private int ccalprohour;
 
        private String [] MuscleGroup;
 
 
        public Equipment(String equipname, String equiptype, int maxTrainingsDuration, int ccalprohour, String[] MuscleGroup) {
            this.equipname = equipname;
            this.equiptype = equiptype;
            this.ccalprohour = ccalprohour;
            this.maxTrainingsDuration = maxTrainingsDuration;
            this.ccalprohour = ccalprohour;
            this.MuscleGroup = MuscleGroup;
        }
 
        public void setEquipname(String equipname) {
            this.equipname = equipname;
        }
 
        public void setEquiptype(String equiptype) {
            this.equiptype = equiptype;
        }
 
        public void setCcalprohour(int ccalprohour) {
            this.ccalprohour = ccalprohour;
        }
 
        public void setMaxTrainingsDuration(int setMaxTrainingsDuration) {
            this.maxTrainingsDuration = setMaxTrainingsDuration;
        }
 
        public void setMuskelgruppe(String[] muskelgruppe, String[] muskelgruppeLegs) {
            this.MuscleGroup = MuscleGroup;
        }
 
        public String getEquipname() {
            return equipname;
        }
 
        public String getEquiptype() {
            return equiptype;
        }
 
        public int getMaxTrainingsDuration() {
            return maxTrainingsDuration;
        }
 
        public int getCcalprohour() {
            return ccalprohour;
        }
 
        public String[] getMuscleGroup() {
            return MuscleGroup;
        }
 
        public int burnedCcalPerHour (int minutes){
 
        }
 
        public int burnedCcalPerHour (int minutes, int hours){
        }
 
         boolean supports (String muscle) {
      }
 
        boolean supports (MuscleGroup muscleGroup){
 
       }
 
       boolean electricityUse (){
 
       }
    }

public class Training {
    private int trainingduration;
    private  String date;
    private  Equipment equipment;
 
    public Training(Equipment equipment, int trainingduration, String date) {
            this.equipment = equipment;
            this.trainingduration = trainingduration;
            this.date = date;
        }
 
    public Training(int trainingduration,String date, Equipment equipment){
            setDate(date);
            setTrainingduration(trainingduration);
            setEquipment(equipment);
        }
 
        boolean goalAchieved (int goalCcal) {
        }
 
        int requiredTrainingTime (int goalCcal) {
         }
 
         void train() {
 
         }
 
         void train (int minutes) {
 
         }
 
     public String getDate() {
            return date;
        }
 
     public int getTrainingduration(){return  trainingduration;}
 
     public Equipment getEquipment() {
            return equipment;
        }
 
     public void setDate(String date) {
            this.date = date;
        }
 
     public void setEquipment(Equipment equipment) {
            this.equipment = equipment;
        }
 
     public void setTrainingduration(int trainingduration) {
            this.trainingduration = trainingduration;
        }
 
        public void traininglog () {
            System.out.println( "This workout lasts " + this.trainingduration + " minutes. Date and  start time : " + this.date + " Equipment used: " + this.equipment);
        }
 
    }

public class MuscleGroup {
 
    String musle;
 
    public final static String LOWERCHEST = "Lower chest";
    public final static String MIDDLECHEST = "Middle chest";
    public final static String UPPERCHEST = "Upper chest";
    public final static String QUADS = "Quadriceps";
    public final static String HAMSTRINGS = "Harmstrings";
    public final static String HIPS = "Hips";
    public final static String CALVES = "Calves";
    public final static String BICEPS = "Biceps";
    public final static String TRICEPS = "Triceps";
    public final static String FOREARMS = "Forearms";
    public final static String LOWERBACK = "Lower back";
    public final static String MIDDLEBACK = "Middle back";
    public final static String TRAPS = "Traps";
    public final static String DELTS = "Delts";
    public final static String LOWERABS = "Lower abs";
    public final static String UPPERABS = "Upper abs";
 
    boolean contains (String musle){
 
      }
 
}