import java.util.Scanner; public class Cat { private String name; private Breed breed; private double weight; public Cat(String name, Breed breed, double weigth) { this.name = name; this.breed = breed; this.weight = weight; } public Breed getBreed() { return breed; } public double getWeight() { return weight; } //other accessors and mutators ...... } public class Breed { private String name; private double averageWgt; public Breed(String name,double averageWgt) { this.name = name; this.averageWgt= averageWgt; } public double getWeight() { return averageWgt; } //other accessors and mutators ...... } (1).Identify each line as being either valid or Invalid statemnet and TELL WHY its invalid in the follwing main(). public class Q1Main { 1.Breed persian = new Breed("Persian",10.0); _____ 2.Cat chacha = new Cat("Cha Cha",persian,12.0);____ 3.Cat bombom = new Cat("Bom Bom" , "mix", 10.0);_____ 4.Cat puffpuff = new Cat("Puff Puff",chacha,9.0);___________ 5.double diff = chacha.getWeight()-persian.getWeight();_________ 6.System.out.println(puffpuff.getBreed().getWeight());________ } (2).Given the Cat and Breed classes on p.1,what will be the output of the follwing code?????? public class Q2Main { public void main (String[]args) { Cat MyCat = new Cat("winky", new Breed("mix",10.5),9.5); System.out.println(myCat.getweight()); System.out.println(myCat.getBreed().getWeigth()); } }
1.Breed persian = new Breed("Persian",10.0); --->Valid
//_____ 2. Cat chacha = new Cat("Cha Cha",persian,12.0);--->valid
//3. Cat bombom = new Cat("Bom Bom" , "mix", 10.0);--->Invalid because there is no such constructors
//4.Cat puffpuff = new Cat("Puff Puff",chacha,9.0);--->Invalid because there is no such constructors defined
//5.
double diff = chacha.getWeight()-persian.getWeight();---> Valid
//6.
System.out.println(puffpuff.getBreed().getWeight());-->Valid
Output is 0.0 and 10.5
See The Output
See the Image
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import java.util.Scanner; public class Cat { private String name; private Breed breed; private double weight; public...
4. Command pattern //class Stock public class Stock { private String name; private double price; public Product(String name, double price) { this.name = name; this.price = price; } public void buy(int quantity){ System.out.println(“BOUGHT: “ + quantity + “x “ + this); } public void sell(int quantity){ System.out.println(“SOLD: “ + quantity + “x “ + this); } public String toString() { return “Product [name=” + name + “, price=” + price + “]”; } } a. Create two command classes that...
import java.util.Scanner; public class StudentClient { public static void main(String[] args) { Student s1 = new Student(); Student s2 = new Student("Smith", "123-45-6789", 3.2); Student s3 = new Student("Jones", "987-65-4321", 3.7); System.out.println("The name of student #1 is "); System.out.println("The social security number of student #1 is " + s1.toString()); System.out.println("Student #2 is " + s2); System.out.println("the name of student #3 is " + s3.getName()); System.out.println("The social security number...
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GIVEN CODES
*****Boat.java*****
import java.util.HashSet;
import java.util.Set;
public class Boat {
private String name; //private instance variable name of type String
private String boatClass; //private instance variable boatClass of type String
private int regNum; //private instance variable regNum of type int
private Set<String> crew = new HashSet<String>();
public void setName(String name) {
this.name = name;
}
public void setBoastClass(String boatClass) {
this.boatClass = boatClass;
}
public void setRegNum(int regNum) {
this.regNum = regNum;
}
public String getName() {
return name;...
Assignment (to be done in Java):
Person Class:
public class Person extends Passenger{
private int numOffspring;
public Person() {
this.numOffspring = 0;
}
public Person (int numOffspring) {
this.numOffspring = numOffspring;
}
public Person(String name, int birthYear, double weight, double
height, char gender, int numCarryOn, int numOffspring)
{
super(name, birthYear, weight, height, gender,
numCarryOn);
if(numOffspring < 0) {
this.numOffspring = 0;
}
this.numOffspring = numOffspring;
}
public int getNumOffspring() {
...
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public class Pet { //Declaring instance variables private String name; private String species; private String parent; private String birthday; //Zero argumented constructor public Pet() { } //Parameterized constructor public Pet(String name, String species, String parent, String birthday) { this.name = name; this.species = species; this.parent = parent; this.birthday = birthday; } // getters and setters public String getName() { return name; ...