HOA4

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace HOA4
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void TextBox1_TextChanged(object sender, EventArgs e)
        {

        }

        private void Button1_Click(object sender, EventArgs e)
        {
            double weight, height, bmi;
            weight = int.Parse(textBox1.Text);
            height = int.Parse(textBox4.Text);

            bmi = (weight * 0.45) / ((height * 0.025) * (height * 0.025));
            label8.Text = ("BMI: " + bmi);
        }

        private void Label8_Click(object sender, EventArgs e)
        {


        }

        private void Button2_Click(object sender, EventArgs e)
        {
            double start, end, sum;

            start = double.Parse(textBox3.Text);
            end = double.Parse(textBox2.Text);
            sum = end * ((start + end) / 2);
            label7.Text = ("Sum: " + sum);
        }

        private void TextBox3_TextChanged(object sender, EventArgs e)
        {

        }

        private void Label7_Click(object sender, EventArgs e)
        {

        }
    }
}