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- package prueba;
- import java.util.Random;
- class Ejer2 {
- double ventas[] = new double[7];
- String dias[] = new String[7];
- double total;
- public void llenar() {
- Random random = new Random();
- for(int i = 0; i<ventas.length;i++) {
- ventas[i]= 100 * random.nextDouble();
- }
- dias[0]="lunes";
- dias[1]="martes";
- dias[2]="miercoles";
- dias[3]="jueves";
- dias[4]="viernes";
- dias[5]="sabado";
- dias[6]="domingo";
- }
- public double promedio() {
- return total/dias.length;
- }
- public double total() {
- for(int i=0;i<dias.length;i++) {
- this.total += ventas[i];
- }
- return this.total;
- }
- public String mayorDia() {
- double mayor=ventas[0];
- int indice=0;
- for(int i = 1; i<dias.length;i++) {
- if(ventas[i]>mayor) {
- mayor = ventas[i];
- indice=i;
- }
- }
- return dias[indice];
- }
- public String menorDia() {
- double menor=ventas[0];
- int indice=0;
- for(int i = 1; i<dias.length;i++) {
- if(ventas[i]<menor) {
- menor = ventas[i];
- indice=i;
- }
- }
- return dias[indice];
- }
- public void mostrarVentas() {
- System.out.println("\t\t---Ventas de la semana---");
- for(int i=0;i<ventas.length; i++) {
- System.out.printf("Dia ["+dias[i]+"]:\t"+"%.2f",ventas[i]);
- System.out.println();
- }
- System.out.println();
- }
- public static void main(String args[]) {
- Ejer2 ejec = new Ejer2();
- ejec.llenar();
- ejec.mostrarVentas();
- System.out.printf("Total de ventas:"+"%.2f",ejec.total());
- System.out.println();
- System.out.printf("Promedio de ventas:"+"%.2f",ejec.promedio());
- System.out.println();
- System.out.println("Mayor dia de venta:"+ejec.mayorDia());
- System.out.println("Menor dia de venta:"+ejec.menorDia());
- }
- }
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