Practica 7.2 Visual

PSEUDOCODIGO

float n, I, x = 0.0;

PRINT("Introduzca un numero");
READ(n)

if (n < 2)
{
PRINT("Introduzca valores mayores que 2");
}

else if (n > 2)
{
for (I = 2; I <= n; I = I + 2)
{

PRINT(I)
x = x + I;
}

PRINT("La suma de los numeros pares es: {0}", x);
{

}
}
final

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace WindowsFormsApplication4

{

public partial class Form1 : Form

{

double n, i, suma;

public Form1()

{

n= i;

suma = 0;

InitializeComponent();

}

private void button1_Click(object sender, EventArgs e)

{

n = double.Parse(textBox1.Text);

if (n<2)

{

textBox2.Text=("El valor es incorrecto");

}

for (i=2; i<=n; i=i+2)

{

suma=suma+i;

}

textBox2.Text = ("" + suma.ToString());

}

private void listBox1_SelectedIndexChanged(object sender, EventArgs e)

{

}

}

}