4/14/24 Rigel

README.md

@@ -11,13 +11,14 @@
 
 ```java
 class Student{
+// class name
     private String name;
     private int rollNo;
-
-    Student(String s, int r)
-    {
-   	    name = s;
-   	    rollNo = r;
+   //instance variables name (String) and rollNo (int) 
+    Student(String s, int r)     //constructor Student
+    { //parameters
+   	    name = s; //instance variable 1 (s)
+   	    rollNo = r; //instance variable 2 (r)
     }
 
     void methodForDisplay()
@@ -26,16 +27,14 @@ class Student{
     }
 
     public static void main(String[] args) {
-        Student obj1=new Student("Rambo",21);
+        Student obj1=new Student("Rambo",21);// Object 1 created, values set
         obj1.methodForDisplay();
     }
 }
 ```
-
-## Part 2 - Public VS Static
-
-* Read the W3Schools page on class methods: [W3Schools Java Class Methods](https://www.w3schools.com/java/java_class_methods.asp)
-* In your own words, write a few sentences below explaining the difference between static and public methods in relation to a class.
+Static can be called directly using the class name, without creating an object of the class. On the other hand, a public method is a method that can be accessed from anywhere,
+regardless of whether it's called from within the class or from outside the class. This can be useful or detrimental to your project, depending on how you use it.
+You must also create an object.
 
 ## Part 3 - Dogs
 

src/Dog.java

@@ -0,0 +1,47 @@
+import java.util.Scanner;
+
+public class Dog {
+
+    private String name;
+    private int age;
+    private String breed;
+    private String size;
+    private String color;
+
+    public Dog(String name, int age, String breed, String size, String color) {
+        this.name = name;
+        this.age = age;
+        this.breed = breed;
+        this.size = size;
+        this.color = color;
+    }
+
+    // method to change the dog's name
+    public void changeName() {
+        Scanner scanner = new Scanner(System.in);
+        System.out.print("Enter the new name for the dog: ");
+        name = scanner.nextLine();
+        System.out.println("The dog's name has been changed to " + name);
+    }
+
+    public void eat(Food food) {
+        if (food.getWeight() >= 5) {
+            food.decreaseWeight(5);
+            System.out.println(name + " ate 5 pounds of food. The remaining weight of the food is " + food.getWeight() + " pounds.");
+        } else {
+            System.out.println("There is not enough food for " + name + " to eat.");
+        }
+    }
+
+    public static void main(String[] args) {
+        Dog dog1 = new Dog("Buddy", 3, "Golden Retriever", "Large", "Golden");
+        Dog dog2 = new Dog("Max", 5, "German Shepherd", "Medium", "Black and Tan");
+        Dog dog3 = new Dog("Charlie", 2, "Labrador", "Small", "Black");
+
+        Food food = new Food(100);
+
+        dog1.eat(food);
+
+        System.out.println("The remaining weight of the food is " + food.getWeight() + " pounds.");
+    }
+}

src/Food.java

@@ -0,0 +1,15 @@
+public class Food {
+
+    private int weight;
+
+    public Food(int weight) {
+        this.weight = weight;
+    }
+
+    public int getWeight() {
+        return weight;
+    }
+
+    public void decreaseWeight(int amount) {
+        weight -= amount;
+    }}