import static java.lang.System.out; import java.text.DecimalFormat; public class PaintCalculator { //Decimal formating to 2 places. //It's not really a constant. //but let's treat it that way for now. private final static double PAINT_PERFORMANCE = 10; public static void main(String[] args) { DecimalFormat df2 = new DecimalFormat(".##"); //High and Width in Centimeters double hight = 2.79; //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> double width = 5.44; //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> //Reference Variable for the CalculoPintura Object PaintCalculator surfaceDim = new PaintCalculator(); //Call the surface diameter calculator. double surDiameter = Double.parseDouble(df2.format(surfaceDim.CalSurface(hight,width))); surfaceDim.CantPintura(surDiameter); } // Calcular la superficie de una pared simple // Formula: Alto por Ancho public double CalSurface(double alto, double ancho){ int id = 1; DecimalFormat df2 = new DecimalFormat(".##"); double result_cms = Double.parseDouble(df2.format(alto * ancho)); ResultMsg(result_cms, id); return result_cms; } // -------------------------------------------- // Si hay aberturas (ventanas o puertas) // Formula: Alto por Ancho y se le resta al total de la pared //Not ready yet. public static void CalAccess(double alto, double ancho, double abertura){ int id = 2; //Preparar metodo para el calculo //de los accesos de la pared (ventanas y puertas) double result_cms = (alto * ancho) - abertura; ResultMsg(result_cms, id); } // -------------------------------------------- //Calcular Cantidad de Pintura por centimetro cuadrado public void CantPintura(double diameter){ int id = 3; double result_liters = diameter / PAINT_PERFORMANCE; ResultMsg(result_liters, id); } //Centimeters to Meters calculation repeated in every method public static double Cms2Mts(double centimeters){ return centimeters * 100; } //Result Message repeated in every paint calculator method public static void ResultMsg(double Calresult, int id){ out.println("PAINT CANS CALCULATOR PER SURFACE: "); switch(id){ case 1: out.println("+++++++++++++++++++++++++++++++++"); out.println("The diameter of the surface is " + Calresult + " meters."); out.println("or " + Cms2Mts(Calresult) + " centimeters."); out.println("+++++++++++++++++++++++++++++++++"); break; case 2: out.println("+++++++++++++++++++++++++++++++++"); out.println("The diameter of the surface"); out.println("consdiering the doors or windows is " + Calresult + "meters."); out.println("or " + Cms2Mts(Calresult) + "centimeters."); out.println("+++++++++++++++++++++++++++++++++"); break; case 3: out.println("+++++++++++++++++++++++++++++++++"); out.println("The Estimate of Paint required for this "); out.println("surface is " + Calresult + " gallons of paint." ); out.println("+++++++++++++++++++++++++++++++++"); out.println("There's 1 gallon of paint on a paint can"); out.println("or 5 gallons in 1 paint bucket."); out.println("For this job the user would need "); out.println("at least " + Calresult * 2 + " paint cans"); out.print("to cover 2 layers "); if(Calresult > 5){ out.println("or " + Calresult * 2 + " paint buckets "); } out.println("for this job."); out.println("+++++++++++++++++++++++++++++++++"); out.println("+++++++++++++++++++++++++++++++++"); break; } } }

PaintPerSurface