Referencing errors

Question

I am getting numerous referencing errors for this class. If anyone can help to shed some light on why I am getting these errors and how I can fix them, it would be greatly appreciated.
Reptile.java:44: calculateAge() in Reptile cannot be applied to (Date)
int currentAge = calculateAge(yearOfBirth);
^
Reptile.java:46: setFoodQty() in Reptile cannot be applied to (Food)
setFoodQty(quantity);
^
Reptile.java:97: non-static method getDay() cannot be referenced from a static context
dayOfBirth = Date.getDay();
^
Reptile.java:97: incompatible types
found : int
required: Date
dayOfBirth = Date.getDay();
^
Reptile.java:104: non-static method getMonth() cannot be referenced from a static context
monthOfBirth = Date.getMonth();
^
Reptile.java:104: incompatible types
found : int
required: Date
monthOfBirth = Date.getMonth();
^
Reptile.java:111: non-static method getYear() cannot be referenced from a static context
YOB = Date.getYear();
^
Reptile.java:111: incompatible types
found : int
required: Date
YOB = Date.getYear();
^
Reptile.java:119: non-static method getDay() cannot be referenced from a static context
arrivalDay = Date.getDay();
^
Reptile.java:119: incompatible types
found : int
required: Date
arrivalDay = Date.getDay();
^
Reptile.java:126: non-static method getMonth() cannot be referenced from a static context
arrivalMonth = Date.getMonth();
^
Reptile.java:126: incompatible types
found : int
required: Date
arrivalMonth = Date.getMonth();
^
Reptile.java:133: non-static method getYear() cannot be referenced from a static context
arrivalYear = Date.getYear();
^
Reptile.java:133: incompatible types
found : int
required: Date
arrivalYear = Date.getYear();
^
Reptile.java:141: non-static method getFoodType() cannot be referenced from a static context
preferredFood = Food.getFoodType();
^
Reptile.java:141: incompatible types
found : Food.FoodType
required: Food
preferredFood = Food.getFoodType();
^
Reptile.java:149: cannot find symbol
symbol : variable foodQuantity
location: class Reptile
foodQuantity = Food.getDosage();
^
Reptile.java:149: non-static method getDosage() cannot be referenced from a static context
foodQuantity = Food.getDosage();
^
Reptile.java:197: incompatible types
found : Date
required: int
return arrivalDay;
^
Reptile.java:203: incompatible types
found : Date
required: int
return arrivalMonth;
^
Reptile.java:209: incompatible types
found : Date
required: int
return arrivalYear;
^
Reptile.java:221: incompatible types
found : Food
required: int
return foodQTY;
^
Reptile.java:235: operator - cannot be applied to int,Date
currentAge = currentYear - YOB; //calculate age
^
Reptile.java:240: cannot find symbol
symbol : variable FoodType
location: class Reptile
Food testReptile = new Reptile("Larry", ReptileType.Lizard, 2000, 10, 10, 2008, FoodType.ButterflyWings, 10);
^
Reptile.java:240: internal error; cannot instantiate Reptile.<init> at Reptile to ()
Food testReptile = new Reptile("Larry", ReptileType.Lizard, 2000, 10, 10, 2008, FoodType.ButterflyWings, 10);
^
Reptile.java:242: cannot find symbol
symbol : method getReptileID()
location: class Food
System.out.println(testReptile.getReptileID());
^
Reptile.java:244: cannot find symbol
symbol : method getReptileName()
location: class Food
System.out.println(testReptile.getReptileName());
^
Reptile.java:249: cannot find symbol
symbol : method getReptileType()
location: class Food
System.out.println(testReptile.getReptileType());
^
Reptile.java:251: cannot find symbol
symbol : method getReptileAge()
location: class Food
System.out.println(testReptile.getReptileAge());
^
Reptile.java:253: cannot find symbol
symbol : method getArrivalDay()
location: class Food
System.out.println(testReptile.getArrivalDay() + "/" testReptile.getArrivalMonth() "/"
^
Reptile.java:253: cannot find symbol
symbol : method getArrivalMonth()
location: class Food
System.out.println(testReptile.getArrivalDay() + "/" testReptile.getArrivalMonth() "/"
^
Reptile.java:254: cannot find symbol
symbol : method getArrivalYear()
location: class Food
+ testReptile.getArrivalYear());
^
Reptile.java:256: cannot find symbol
symbol : method getFood()
location: class Food
System.out.println(testReptile.getFood());
^
Reptile.java:258: cannot find symbol
symbol : method getFoodQTY()
location: class Food
System.out.println(testReptile.getFoodQTY() + "g");
import java.util.Scanner;
import java.util.Random;
import java.util.Calendar;
public class Reptile {
     private int reptileID;                                        //unique reptile ID
     private String reptileName;                                   //name of reptile
     public enum ReptileType {Snake, Lizard, Crocodile};     //enumerated list for different animal types
     private ReptileType reptileType;                         //reptile type
     private Date dayOfBirth;                                   //Reptile's year of birth
     private Date monthOfBirth;                                   //Reptile's year of birth
     private Date YOB;                                             //Reptile's year of birth (used to calculate reptile's age)
     private int currentAge;                                        //the reptile's age
     private int currentYear = 2008;                              //the default current year
     private Date arrivalDay;                                   //Day of reptile's arrivial in enclosure
     private Date arrivalMonth;                                   //Month of reptile's arrivial in enclosure
     private Date arrivalYear;                                   //Year of reptile's arrivial in enclosure
     private Food preferredFood;                                   //Reptile's food type
     private Food foodQTY;                                        //Reptile's daily food dosage
    //Default Reptile constructor
    public Reptile() {}
    //Reptile constructor
    public Reptile(String name, ReptileType type, Date yearOfBirth, Date entryDay, Date entryMonth,
         Date entryYear, Food food, Food  quantity)
         int reptileID = createID();
         setReptileName(name);
         setReptileType(type);
         setYOB(yearOfBirth);
         setArrivalMonth(entryMonth);
         setArrivalYear(entryYear);
         setArrivalDay(entryDay);
         int currentAge = calculateAge(yearOfBirth);
         setFood(food);
         setFoodQty(quantity);     
    // Mutator method to set the reptile name
        public void setReptileName(String name)
         Scanner scan = new Scanner(System.in);                         //get user input for reptile name
             System.out.println("\nEnter the Reptile's Name...");
         reptileName = scan.nextLine();
    // Mutator method to set the reptile type
    public void setReptileType(ReptileType type)
         String newReptileType = "A";
         while (!((newReptileType.equals("S")) || (newReptileType.equals("L")) || (newReptileType.equals("C"))))
              Scanner scan = new Scanner(System.in);                    //get user input for reptile type
                  System.out.println("\nEnter the Reptile Type...");
              System.out.println("(S) for Snake");
              System.out.println("(L) for Lizard");
              System.out.println("(C) for Crocodile");
              System.out.print("Reptile Type: ");
              newReptileType = scan.nextLine();
              //assign reptile types to the letters representing them, eg. S = Snake
              if (newReptileType.equals("S"))                              
                   reptileType = ReptileType.Snake;
                   else
                        if (newReptileType.equals("L"))
                             reptileType = ReptileType.Lizard;
                             else
                                  if (newReptileType.equals("C"))
                                       reptileType = ReptileType.Crocodile;
                                       else
                                            System.out.println("Error. Input is not valid.");
    // Mutator method to set the reptile's day of birth
    public void setDayOfBirth(Date day)
         Scanner scan = new Scanner(System.in);
         System.out.println("You are required to enter the date the reptile was born. ");
         dayOfBirth = Date.getDay();
    // Mutator method to set the reptile's month of birth
    public void setMonthOfBirth(Date month)
         Scanner scan = new Scanner(System.in);
         monthOfBirth = Date.getMonth();
    // Mutator method to set the reptile's year of birth
    public void setYOB(Date year)
         Scanner scan = new Scanner(System.in);
         YOB = Date.getYear();
    // Mutator method to set the reptile's day of arrival
    public void setArrivalDay(Date day)
         Scanner scan = new Scanner(System.in);
         System.out.println("You are required to enter the date the reptile entered the enclosure. ");
         arrivalDay = Date.getDay();
    // Mutator method to set the reptile's month of arrival
    public void setArrivalMonth(Date month)
         Scanner scan = new Scanner(System.in);
         arrivalMonth = Date.getMonth();
    // Mutator method to set the reptile's year of arrival
    public void setArrivalYear(Date year)
         Scanner scan = new Scanner(System.in);
         arrivalYear = Date.getYear();
    // Mutator method to set the reptile's preferred food
    public void setFood(Food food)
         Scanner scan = new Scanner(System.in);
         System.out.println("You are required to enter the reptile's preferred food. ");
         preferredFood = Food.getFoodType();
    // Mutator method to set the reptile's daily food quantity
    public void setFood()
         Scanner scan = new Scanner(System.in);
         System.out.println("You are required to enter daily food quantity for the reptile. ");
         foodQuantity = Food.getDosage();
    // ReptileID accessor.
    public int getReptileID()
         return reptileID;
    // ReptileName accessor.
    public String getReptileName()
         return reptileName;
    // ReptileType accessor.
    public ReptileType getReptileType()
         return reptileType;
    // Reptile Day of Birth accessor.
    public Date getDayOfBirth()
         return dayOfBirth;
    // Reptile Month of Birth accessor.
    public Date getMonthOfBirth()
         return monthOfBirth;
    // Reptile Year of Birth accessor.
    public Date getYOB()
         return YOB;
    // Reptile currentAge accessor.
    public int getReptileAge()
         return currentAge;
     // Reptile arrival day accessor.
    public int getArrivalDay()
         return arrivalDay;
    // Reptile arrival month accessor.
    public int getArrivalMonth()
         return arrivalMonth;
    // Reptile arrival date accessor.
    public int getArrivalYear()
         return arrivalYear;
    // Reptile preferredFood accessor.
    public Food getFood()
         return preferredFood;
    // Reptile FoodQTY accessor.
    public int getFoodOTY()
         return foodQTY;
    //The createID() method produces a random reptile ID number between 0 and 100.
    public int createID()
         Random generator = new Random();
         reptileID = generator.nextInt(100) + 1;
    // The calculateAge() method calculates the reptile's current age
    public int calculateAge()
         //currentYear = Calendar.get(Calendar.YEAR) - 1900          //use a built-in Java function to calculate current year
         currentAge = currentYear - yearOfBirth;                         //calculate age
    public static void main(String args[])                               //driver Program to test class
         Food testReptile = new Reptile("Larry", ReptileType.Lizard, 2000, 10, 10, 2008, ButterflyWings, 10);
         System.out.print("Actual reptileID returned: ");
         System.out.println(testReptile.getReptileID());
         System.out.print("Actual reptile Name returned: ");
         System.out.println(testReptile.getReptileName());
         System.out.println("\nFor user input 'S', Expected reptile: Snake");
         System.out.println("For user input 'L', Expected reptile: Lizard");
         System.out.println("For user input 'C', Expected reptile: Crocodile");
         System.out.print("\nActual reptile type returned: ");
         System.out.println(testReptile.getReptileType());
         System.out.print("Actual reptile age returned: ");
         System.out.println(testReptile.getReptileAge());
         System.out.print("Actual arrival date returned: ");
         System.out.println(testReptile.getArrivalDay() + "/" +testReptile.getArrivalMonth() + "/"
              + testReptile.getArrivalYear());
         System.out.print("Actual preferred food type returned: ");
         System.out.println(testReptile.getFood());
         System.out.print("Actual daily food dosage returned: ");
         System.out.println(testReptile.getFoodQTY() + "g");
}

Answer 1

I have changed all types to int but still am getting the same error. Any suggestions for the non-static method getDay() cannot be referenced from a static context errors I am getting?
Reptile.java:44: calculateAge() in Reptile cannot be applied to (int)
int currentAge = calculateAge(yearOfBirth);
^
Reptile.java:46: setFoodQty() in Reptile cannot be applied to (Food)
setFoodQty(quantity);
^
Reptile.java:97: non-static method getDay() cannot be referenced from a static context
dayOfBirth = Date.getDay();
^
Reptile.java:104: non-static method getMonth() cannot be referenced from a static context
monthOfBirth = Date.getMonth();
^
Reptile.java:111: non-static method getYear() cannot be referenced from a static context
YOB = Date.getYear();
^
Reptile.java:119: non-static method getDay() cannot be referenced from a static context
arrivalDay = Date.getDay();
^
Reptile.java:126: non-static method getMonth() cannot be referenced from a static context
arrivalMonth = Date.getMonth();
^
Reptile.java:133: non-static method getYear() cannot be referenced from a static context
arrivalYear = Date.getYear();
^
Reptile.java:141: non-static method getFoodType() cannot be referenced from a static context
preferredFood = Food.getFoodType();
^
Reptile.java:149: non-static method getDosage() cannot be referenced from a static context
foodQTY = Food.getDosage();
^
Reptile.java:240: cannot find symbol
symbol : variable FoodType
location: class Reptile
Food testReptile = new Reptile("Larry", ReptileType.Lizard, 2000, 10, 10, 2008, FoodType.WormSoup, 10);
^
Reptile.java:240: internal error; cannot instantiate Reptile.<init> at Reptile to ()
Food testReptile = new Reptile("Larry", ReptileType.Lizard, 2000, 10, 10, 2008, FoodType.WormSoup, 10);
^
Reptile.java:242: cannot find symbol
symbol : method getReptileID()
location: class Food
System.out.println(testReptile.getReptileID());
^
Reptile.java:244: cannot find symbol
symbol : method getReptileName()
location: class Food
System.out.println(testReptile.getReptileName());
^
Reptile.java:249: cannot find symbol
symbol : method getReptileType()
location: class Food
System.out.println(testReptile.getReptileType());
^
Reptile.java:251: cannot find symbol
symbol : method getReptileAge()
location: class Food
System.out.println(testReptile.getReptileAge());
^
Reptile.java:253: cannot find symbol
symbol : method getArrivalDay()
location: class Food
System.out.println(testReptile.getArrivalDay() + "/" testReptile.getArrivalMonth() "/"
^
Reptile.java:253: cannot find symbol
symbol : method getArrivalMonth()
location: class Food
System.out.println(testReptile.getArrivalDay() + "/" testReptile.getArrivalMonth() "/"
^
Reptile.java:254: cannot find symbol
symbol : method getArrivalYear()
location: class Food
+ testReptile.getArrivalYear());
^
Reptile.java:256: non-static method getDay() cannot be referenced from a static context
System.out.println(Date.getDay() + "/" + Date.getMonth() + "/" + Date.getYear());
^
Reptile.java:256: non-static method getMonth() cannot be referenced from a static context
System.out.println(Date.getDay() + "/" + Date.getMonth() + "/" + Date.getYear());
^
Reptile.java:256: non-static method getYear() cannot be referenced from a static context
System.out.println(Date.getDay() + "/" + Date.getMonth() + "/" + Date.getYear());
^
Reptile.java:258: cannot find symbol
symbol : method getFood()
location: class Food
System.out.println(testReptile.getFood());
^
Reptile.java:260: cannot find symbol
symbol : method getFoodQTY()
location: class Food
System.out.println(testReptile.getFoodQTY() + "g");
import java.util.Scanner;
import java.util.Random;
import java.util.Calendar;
public class Reptile {
     private int reptileID;                                        //unique reptile ID
     private String reptileName;                                   //name of reptile
     public enum ReptileType {Snake, Lizard, Crocodile};     //enumerated list for different animal types
     private ReptileType reptileType;                         //reptile type
     private int dayOfBirth;                                        //Reptile's year of birth
     private int monthOfBirth;                                   //Reptile's year of birth
     private int YOB;                                             //Reptile's year of birth (used to calculate reptile's age)
     private int currentAge;                                        //the reptile's age
     private int currentYear = 2008;                              //the default current year
     private int arrivalDay;                                        //Day of reptile's arrivial in enclosure
     private int arrivalMonth;                                   //Month of reptile's arrivial in enclosure
     private int arrivalYear;                                   //Year of reptile's arrivial in enclosure
     private Food.FoodType preferredFood;                    //Reptile's food type
     private double foodQTY;                                        //Reptile's daily food dosage
    //Default Reptile constructor
    public Reptile() {}
    //Reptile constructor
    public Reptile(String name, ReptileType type, int yearOfBirth, int entryDay, int entryMonth,
         int entryYear, Food.FoodType food, Food  quantity)
         int reptileID = createID();
         setReptileName(name);
         setReptileType(type);
         setYOB(yearOfBirth);
         setArrivalMonth(entryMonth);
         setArrivalYear(entryYear);
         setArrivalDay(entryDay);
         int currentAge = calculateAge(yearOfBirth);
         setFood(food);
         setFoodQty(quantity);     
    // Mutator method to set the reptile name
        public void setReptileName(String name)
         Scanner scan = new Scanner(System.in);                         //get user input for reptile name
             System.out.println("\nEnter the Reptile's Name...");
         reptileName = scan.nextLine();
    // Mutator method to set the reptile type
    public void setReptileType(ReptileType type)
         String newReptileType = "A";
         while (!((newReptileType.equals("S")) || (newReptileType.equals("L")) || (newReptileType.equals("C"))))
              Scanner scan = new Scanner(System.in);                    //get user input for reptile type
                  System.out.println("\nEnter the Reptile Type...");
              System.out.println("(S) for Snake");
              System.out.println("(L) for Lizard");
              System.out.println("(C) for Crocodile");
              System.out.print("Reptile Type: ");
              newReptileType = scan.nextLine();
              //assign reptile types to the letters representing them, eg. S = Snake
              if (newReptileType.equals("S"))                              
                   reptileType = ReptileType.Snake;
                   else
                        if (newReptileType.equals("L"))
                             reptileType = ReptileType.Lizard;
                             else
                                  if (newReptileType.equals("C"))
                                       reptileType = ReptileType.Crocodile;
                                       else
                                            System.out.println("Error. Input is not valid.");
    // Mutator method to set the reptile's day of birth
    public void setDayOfBirth(int day)
         Scanner scan = new Scanner(System.in);
         System.out.println("You are required to enter the date the reptile was born. ");
         dayOfBirth = Date.getDay();
    // Mutator method to set the reptile's month of birth
    public void setMonthOfBirth(int month)
         Scanner scan = new Scanner(System.in);
         monthOfBirth = Date.getMonth();
    // Mutator method to set the reptile's year of birth
    public void setYOB(int year)
         Scanner scan = new Scanner(System.in);
         YOB = Date.getYear();
    // Mutator method to set the reptile's day of arrival
    public void setArrivalDay(int day)
         Scanner scan = new Scanner(System.in);
         System.out.println("You are required to enter the date the reptile entered the enclosure. ");
         arrivalDay = Date.getDay();
    // Mutator method to set the reptile's month of arrival
    public void setArrivalMonth(int month)
         Scanner scan = new Scanner(System.in);
         arrivalMonth = Date.getMonth();
    // Mutator method to set the reptile's year of arrival
    public void setArrivalYear(int year)
         Scanner scan = new Scanner(System.in);
         arrivalYear = Date.getYear();
    // Mutator method to set the reptile's preferred food
    public void setFood(Food.FoodType food)
         Scanner scan = new Scanner(System.in);
         System.out.println("You are required to enter the reptile's preferred food. ");
         preferredFood = Food.getFoodType();
    // Mutator method to set the reptile's daily food quantity
    public void setFoodQty()
         Scanner scan = new Scanner(System.in);
         System.out.println("You are required to enter daily food quantity for the reptile. ");
         foodQTY = Food.getDosage();
    // ReptileID accessor.
    public int getReptileID()
         return reptileID;
    // ReptileName accessor.
    public String getReptileName()
         return reptileName;
    // ReptileType accessor.
    public ReptileType getReptileType()
         return reptileType;
    // Reptile Day of Birth accessor.
    public int getDayOfBirth()
         return dayOfBirth;
    // Reptile Month of Birth accessor.
    public int getMonthOfBirth()
         return monthOfBirth;
    // Reptile Year of Birth accessor.
    public int getYOB()
         return YOB;
    // Reptile currentAge accessor.
    public int getReptileAge()
         return currentAge;
     // Reptile arrival day accessor.
    public int getArrivalDay()
         return arrivalDay;
    // Reptile arrival month accessor.
    public int getArrivalMonth()
         return arrivalMonth;
    // Reptile arrival date accessor.
    public int getArrivalYear()
         return arrivalYear;
    // Reptile preferredFood accessor.
    public Food.FoodType getFood()
         return preferredFood;
    // Reptile FoodQTY accessor.
    public double getFoodOTY()
         return foodQTY;
    //The createID() method produces a random reptile ID number between 0 and 100.
    public int createID()
         Random generator = new Random();
         reptileID = generator.nextInt(100) + 1;
    // The calculateAge() method calculates the reptile's current age
    public int calculateAge()
         //currentYear = Calendar.get(Calendar.YEAR) - 1900          //use a built-in Java function to calculate current year
         currentAge = currentYear - YOB;                                   //calculate age
    public static void main(String args[])                               //driver Program to test class
         Food testReptile = new Reptile("Larry", ReptileType.Lizard, 2000, 10, 10, 2008, FoodType.WormSoup, 10);
         System.out.print("Actual reptileID returned: ");
         System.out.println(testReptile.getReptileID());
         System.out.print("Actual reptile Name returned: ");
         System.out.println(testReptile.getReptileName());
         System.out.println("\nFor user input 'S', Expected reptile: Snake");
         System.out.println("For user input 'L', Expected reptile: Lizard");
         System.out.println("For user input 'C', Expected reptile: Crocodile");
         System.out.print("\nActual reptile type returned: ");
         System.out.println(testReptile.getReptileType());
         System.out.print("Actual reptile age returned: ");
         System.out.println(testReptile.getReptileAge());
         System.out.print("Actual arrival date returned: ");
         System.out.println(testReptile.getArrivalDay() + "/" +testReptile.getArrivalMonth() + "/"
              + testReptile.getArrivalYear());
         //System.out.print("Please enter the arrival date: ");
         System.out.println(Date.getDay() + "/" + Date.getMonth() + "/" + Date.getYear());
         System.out.print("Actual preferred food type returned: ");
         System.out.println(testReptile.getFood());
         System.out.print("Actual daily food dosage returned: ");
         System.out.println(testReptile.getFoodQTY() + "g");
}