ariestamirra

persegi4

May 13th, 2014
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Java 0.57 KB | None | 0 0
  1. package mirra.ariesta.soalGanjil;
  2.  
  3. public class Persegi4 extends Titik {
  4.  
  5.     private double lebar, panjang;
  6.  
  7.     public Persegi4() {
  8.  
  9.     }
  10.  
  11.     private void init() {
  12.         lebar = getY2() - getY1();
  13.         panjang = getX3() - getX2();
  14.     }
  15.  
  16.     @Override
  17.     public void setTitik(Titik titik) {
  18.         super.setTitik(titik);
  19.         init();
  20.     }
  21.  
  22.     public double getLebar() {
  23.         return lebar;
  24.     }
  25.  
  26.     public double getPanjang() {
  27.         return panjang;
  28.     }
  29.  
  30.     public double luas() {
  31.         return lebar * panjang;
  32.     }
  33.  
  34. }
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