Compound Interest in C# Using Windows Form

  A program that will compute the compound interest of a loan using C# programming language which uses Windows Form as its user interface.

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Program Listing

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 Simple_Interest

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

     

        private void button1_Click(object sender, EventArgs e)

        {

            double amount, interest;

            double time;

            double compound_interest;

                        

            amount = Convert.ToDouble(textBox1.Text);

            interest = Convert.ToDouble(textBox2.Text);

            time = Convert.ToDouble(textBox3.Text);

            compound_interest = amount * (Math.Pow((1 + interest / 100), time)); 

            textBox4.Text = compound_interest.ToString("0.00");

        }

        private void button2_Click(object sender, EventArgs e)

        {

            textBox1.Text = "";

            textBox2.Text = "";

            textBox3.Text = "";

            textBox4.Text = "";

            textBox1.Focus();

        }

        private void button3_Click(object sender, EventArgs e)

        {

            this.Close();

        }

    }

}