Java Programming II Questions

Homework 4-1

https://che.gg/2ILXRYA

Animal - height : double + Animal(String, int, double, double, char) //name, birthYear, weight, height, gender + getHeight() : double + setHeight(double) : void //if input value is negative set height to -1 + calculateBMI() : double //using pounds and inches BMI = weight / (height2) * 703 + printDetails() : void // prints Animal attributes in the following format: // "Name: %20s | Year of Birth: %4d | Weight: %10.2f | Height: %10.2f | Gender: %c " + toString() : String @Override //see Note1 for format + equals(Object) : boolean @Override //see Note2 for equality checks NOTE1: Format the data for the toString() method as "Name: %20s | Year of Birth: %4d | Weight: %10.2f | Height: %10.2f | Gender: %c " NOTE2: For the equals(Object) method, two Animal objects are considered equal if both have the same values for birthYear, gender, name and if their weight, height values are within .5 of the others weight, height values 

//ANIMAL.JAVA

public class Animal {

private String name;

private int birthYear ;

private double weight ;

private char gender;

private double height;

public Animal()

{

name="";

birthYear=1900;

weight=0.0;

height=0.0;

gender='u';

}

public Animal(String n, int b, double w,double h, char g)

{

name=n;

birthYear=b;

setWeight(w);

setGender(g);

setHeight(h);

// if(w >= 0) weight=w;

// else weight=0;

// if(g == 'm' || g == 'f')

// gender = g;

// else

// gender = 'u';

}

public String getName()

{

return name;

}

public void setName(String n)

{

name =n;

}

public int getBirthYear()

{

return birthYear;

}

public void setBirthYear(int birthYear)

{

this.birthYear = birthYear;

}

public double getWeight()

{

return weight;

}

public void setWeight(double w)

{

if(Double.compare(w, 0.0) < 0)

{ weight = -1.0;

return;

}

else{

weight = w ; }

}

public double getHeight()

{

return height;

}

public void setHeight(double h)

{

if(Double.compare(h, 0.0) < 0)

{

height = -1.0;

return;

}

else{

height = h ;

}

}

public char getGender()

{

return gender;

}

public void setGender(char g)

{

if(g == 'm' || g == 'f')

gender = g;

else

gender = 'u';

}

public double calculateBMI()

{

if(height < 0 || weight < 0)

return -1;

return(weight/(Math.pow(height,2)*703));

}

public int calculateAge(int currentYear)

{

if(currentYear < birthYear)

return -1;

return currentYear-birthYear;

}

public boolean isMale()

{

return gender=='m';

}

public boolean isFemale()

{

return gender=='f';

}

public void printDetails()

{

System.out.printf("Name: %20s | Year of Birth: %4d | Weight: %10.2f | Height: %10.2f | Gender: %c ",name,birthYear,weight,height,gender);

}

public void gainWeight()

{

weight+=1;

}

public void gainWeight(double amount)

{

if(amount <= 0 )

return;

weight+=amount;

}

public void loseWeight()

{

if(weight-1 > 0){

weight-=1;

}

}

public void loseWeight(double amount)

{

if(weight - amount >= 0 )

weight-=amount;

}

public String toString()

{

return String.format("Name: %20s | Year of Birth: %4d | Weight: %10.2f | Height: %10.2f | Gender: %c ",name,birthYear,weight,height,gender);

}

@Override

public boolean equals(Object obj)

{

if(obj instanceof Animal)

{

if((birthYear == ((Animal)obj).birthYear) && (gender == ((Animal)obj).gender) && (name.equals(((Animal)obj).name))

&& (Math.abs(height - ((Animal)obj).height) <= 0.5) && (Math.abs(weight - ((Animal)obj).weight) <= 0.5))

return true;

}

return false;

}

}

//END OF ANIMAL.JAVA

Multiple Errors!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!

overloading constructor

Compilation failed

zyLabsUnitTest.java:11: error: no suitable constructor found for Animal(String,int,double,char) Animal animal2 = new Animal("Tiger", 2008, 123.45, 'f'); constructor Animal.Animal() is not applicable (actual and formal argument lists differ in length) constructor Animal.Animal(String,int,double,double,char) is not applicable (actual and formal argument lists differ in length) 1 error

overloading constructor with invalid weight

Compilation failed

overloading constructor with invalid gender

Compilation failed

setName()

Compilation failed

setBirthYear()

Compilation failed

setGender() with invalid input

Compilation failed

setGender() with valid input

Compilation failed

calculateAge(int)

Compilation failed

calculateAge(int) with currentYear < birthYear

Compilation failed

isMale()

Compilation failed

isFemale()

Compilation failed

gainWeight()

Compilation failed

gainWeight(double)

Compilation failed

loseWeight()

Compilation failed

loseWeight(double)

Compilation failed

gainWeight(double) with weight decrease below 0

Compilation failed

loseWeight() with weight decrease below 0

Compilation failed

loseWeight(double) with weight decrease below 0

Compilation failed

calculateBMI() method in Animal class

Your output:

calculateAge(int) does not work properly with valid height and weight

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