Tugas 2 - Pemrograman Orientasi Objek

Nama: Donny Fitrado
NRP : 05111740000171
Kelas: A

Berikut ini adalah source codenya:
1. myMain:

 import static java.lang.Math.sqrt;  
 import java.awt.*;  
 /**  
  * Write a description of class Main here.  
  *  
  * Donny Fitrado  
  * 10-9-2018  
  */  
 public class myMain  
 {  
   public static void main(String args[])  
   {  
     //Circle  
     Circle aCircle;  
     aCircle = new Circle();  
     aCircle.SetRadius(3.0);  
     aCircle.SetCenter(2.0,2.0);  
     double LuasLingkaran = aCircle.Area();  
     double KelilingLingkaran = aCircle.Circumference();  
     System.out.println("Luas lingkaran adalah " + LuasLingkaran + " cm^2");  
     System.out.println("Keliling lingkaran adalah " + KelilingLingkaran + " cm");  
     //Square  
     Square aSquare;  
     aSquare = new Square();  
     aSquare.SetSide(4.0);  
     aSquare.SetCenter(2.0,2.0);  
     double LuasPersegi = aSquare.Area();  
     double KelilingPersegi = aSquare.Circumference();  
     System.out.println("Luas persegi adalah " + LuasPersegi + " cm^2");  
     System.out.println("Keliling persegi adalah " + KelilingPersegi + " cm");  
     //Rectangle  
     Rectangle aRectangle;  
     aRectangle = new Rectangle();  
     aRectangle.SetSide(4.0,3.0);  
     aRectangle.SetCenter(2.0,2.0);  
     double LuasPersegiPanjang = aRectangle.Area();  
     double KelilingPersegiPanjang = aRectangle.Circumference();  
     System.out.println("Luas persegi-panjang adalah " + LuasPersegiPanjang + " cm^2");  
     System.out.println("Keliling persegi-panjang adalah " + KelilingPersegiPanjang + " cm");  
     //Triangle  
     Triangle aTriangle;  
     aTriangle = new Triangle();  
     aTriangle.SetBottom(4.0);  
     aTriangle.SetCenter(2.0,2.0);  
     double LuasSegitiga = aTriangle.Area();  
     double KelilingSegitiga = aTriangle.Circumference();  
     System.out.println("Luas segitiga adalah " + LuasSegitiga + " cm^2");  
     System.out.println("Keliling segitiga adalah " + KelilingSegitiga + " cm");  
     //Rhombus  
     Rhombus aRhombus;  
     aRhombus = new Rhombus();  
     aRhombus.SetDiagonal(2.0,1.5);  
     aRhombus.SetCenter(2.0,2.0);  
     double LuasBelahKetupat = aRhombus.Area();  
     double KelilingBelahKetupat = aRhombus.Circumference();  
     System.out.println("Luas belah-ketupat adalah " + LuasBelahKetupat + " cm^2");  
     System.out.println("Keliling belah-ketupat adalah " + KelilingBelahKetupat + " cm");  
     //Parallelogram  
     Parallelogram aParallelogram;  
     aParallelogram = new Parallelogram();  
     aParallelogram.SetLongSide(4.0);  
     aParallelogram.SetHeight(2.0);  
     aParallelogram.SetHypo(3.0);  
     double LuasJajarGenjang = aParallelogram.Area();  
     double KelilingJajarGenjang = aParallelogram.Circumference();  
      System.out.println("Luas lingkaran adalah " + LuasJajarGenjang + " cm^2");  
     System.out.println("Keliling lingkaran adalah " + KelilingJajarGenjang + " cm");  
   }  
 }  

2. Circle:

 /**  
  * Write a description of class Circle here.  
  *  
  * Donny Fitrado  
  * 10-9-2018  
  */  
 public class Circle  
 {  
   private double radius;  
   private double centerx;  
   private double centery;  
   public Circle()  
   {  
     radius = 1;  
     centerx = 0;  
     centery = 0;  
   }  
   public void SetRadius(double r)  
   {  
     radius = r;  
   }  
   public void SetCenter(double x, double y)  
   {  
     centerx = x;  
     centery = y;  
   }  
   public double Circumference()  
   {  
     return 2*3.14*radius;  
   }  
   public double Area()  
   {  
     return 3.14*radius*radius;  
   }  
 }  

3. Square

 /**  
  * Write a description of class Square here.  
  *  
  * Donny Fitrado  
  * 10-9-2018  
  */  
 public class Square  
 {  
   private double side;  
   private double centerx;  
   private double centery;  
   public Square()  
   {  
     side = 1;  
     centerx = 0;  
     centery = 0;  
   }  
   public void SetSide(double s)  
   {  
     side = s;  
   }  
   public void SetCenter(double x, double y)  
   {  
     centerx = x;  
     centery = y;  
   }  
   public double Circumference()  
   {  
     return 4 * side;  
   }  
   public double Area()  
   {  
     return side * side;  
   }  
 }  

4. Rectangle

 import java.awt.*;  
 import java.awt.Canvas;  
 /**  
  * Write a description of class Rectangle here.  
  *  
  * Donny Fitrado  
  * 10-9-2018  
  */  
 public class Rectangle  
 {  
   private double aside;  
   private double bside;  
   private double centerx;  
   private double centery;  
   private boolean isVisible;  
   private String color;  
   public Rectangle()  
   {  
     aside = 2;  
     bside = 1;  
     centerx = 0;  
     centery = 0;  
     isVisible = true;  
     color = "black";  
   }  
   public void SetSide(double l, double s)  
   {  
     aside = l;  
     bside = s;  
   }  
   public void SetCenter(double x, double y)  
   {  
     centerx = x;  
     centery = y;  
   }  
   public double Circumference()  
   {  
     return 2*aside + 2*bside;  
   }  
   public double Area()  
   {  
     return aside * bside;  
   }  
 }  

5. Triangle

 import static java.lang.Math.sqrt;  
 /**  
  * Write a description of class Triangle here.  
  *  
  * Donny Fitrado  
  * 10-9-2018  
  */  
 public class Triangle  
 {  
   private double bottom;  
   private double height;  
   private double hypo;  
   private double centerx;  
   private double centery;  
   public Triangle()  
   {  
     bottom = 1;  
     height = 1;  
     centerx = 0;  
     centery = 0;  
   }  
   public void SetBottom(double s)  
   {  
     bottom = s;  
   }  
   public void SetHeight(double h)  
   {  
     height = h;  
   }  
   public void SetCenter(double x, double y)  
   {  
     centerx = x;  
     centery = y;  
   }  
   public double Circumference()  
   {  
     hypo = Math.sqrt(0.5*bottom*0.5*bottom + height*height);  
     return 2*hypo + bottom;  
   }  
   public double Area()  
   {  
     return 0.5 * bottom * height;  
   }  
 }  

6. Rhombus

 import static java.lang.Math.sqrt;  
 /**  
  * Write a description of class Rhombus here.  
  *  
  * Donny Fitrado  
  * 10-9-2018  
  */  
 public class Rhombus  
 {  
   private double FirstDiagonal;  
   private double SecondDiagonal;  
   private double side;  
   private double centerx;  
   private double centery;  
   public Rhombus()  
   {  
     FirstDiagonal = 1;  
     SecondDiagonal = 1;  
     centerx = 0;  
     centery = 0;  
   }  
   public void SetDiagonal(double d1, double d2)  
   {  
     FirstDiagonal = d1;  
     SecondDiagonal = d2;  
   }  
   public void SetCenter(double x, double y)  
   {  
     centerx = x;  
     centery = y;  
   }  
   public double Circumference()  
   {  
     side = Math.sqrt(0.5 * FirstDiagonal * 0.5 * FirstDiagonal + 0.5 * SecondDiagonal * 0.5 * SecondDiagonal);  
     return 4 * side;  
   }  
   public double Area()  
   {  
     return 0.5 * FirstDiagonal * SecondDiagonal;  
   }  
 }  

7. Paralellogram

 /**  
  * Write a description of class Parallelogram here.  
  *  
  * Donny Fitrado  
  * 10-9-2018  
  */  
 public class Parallelogram  
 {  
   private double LongSide;  
   private double height;  
   private double hypo;  
   private double centerx;  
   private double centery;  
   public Parallelogram()  
   {  
     LongSide = 6;  
     height = 4;  
     hypo = 5;  
     centerx = 0;  
     centery = 0;  
   }  
   public void SetLongSide(double l)  
   {  
     LongSide = l;  
   }  
   public void SetHeight(double h)  
   {  
     height = h;  
   }  
   public void SetHypo(double hy)  
   {  
     hypo = hy;  
   }  
   public void SetCenter(double x, double y)  
   {  
     centerx = x;  
     centery = y;  
   }  
   public double Circumference()  
   {  
     return 2 * LongSide + 2 * hypo;  
   }  
   public double Area()  
   {  
     return 0.5 * LongSide * height;  
   }  
 }  

Berikut ini adalah gambar dari strukturnya: