using System;
public class Program
{
public static void Main()
contapoupanca contaP = new contapoupanca();
contaP.deposita (100);
Console.WriteLine("Hello World");
}
class conta{
double saldo;
public void saca (double valor) {
this.saldo = valor;
public void deposita (double valor){
this.saldo += valor;
class contapoupanca