Java-ClassMethod-Practice/Cup.java at main · JohnNguyenCS/Java-ClassMethod-Practice · GitHub

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/**
 @author John Nguyen
 Date: 08/30/2022

 Class CSCI
 Instructor
 Illustration of classes and methods

  //============================ To Do: ==================
  //1. default constructor
  //2. override the toString method
  //3. come up with your own application for these classes
  //======================================================
*/

import java.util.*;

interface Spillable{

   }

public class Cup{
   //attributes
   private double maxVol; //maximum volume
   private double actVol; //current volume


  //functionalities

  /** default constructor */
   public Cup(){
     this.maxVol = 32.0;
     this.actVol = 0.0;
  }


  /** .. */
   public Cup(double maxVol, double curVol){
     this.maxVol = maxVol;
     this.actVol = curVol;
  }
  // GETTER, allows the extended class to get maxVol
   public double getMaxVol() {
     return this.maxVol;
  }
  // GETTER, allows the extended class to get actVol
   public double getActVol() {
     return this.actVol;
  }

  /** Allows to display method as String*/
   public String toString(){
     return "Max volume: " + this.maxVol +
            "\nActual Volume: " + this.actVol;
  }
  /**driver*/
   public static void main(String[] args){
     Mug y = new Mug(5.0,6.5,3.5);
     System.out.println(y);

     System.out.println();

     Cup x = new Cup(6.5,3.5);
     System.out.println(x);
  }
}

//extending the class
/** .. */
class Mug extends Cup{
  //attribute
   private double dryWeight; //Weight of Mug


  //deafult constructor
   public Mug(){
     this.dryWeight = 10.0;
  }

  //
   public Mug(double weight, double maxVol, double actVol){
     super(maxVol, actVol);
     this.dryWeight = weight;
  }
  //Allows to display method as string
   public String toString(){
     return "Weight: " + this.dryWeight +
            "\nMax Volume: " + getMaxVol() +
            "\nActual Volume: " + getActVol();
  }
}