coding mengitung luas & keliling persegi panjang microsoft visual studio

Ini ada Bantuan coding buat kalian yang pusing akan coding codingan ..



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 menghitung_luas_dan_keliling_persegi_panjang

{

    public partial class fHitung : Form

    {

        String pilih ;

        Decimal hasil;

        public fHitung()

        {

            InitializeComponent();

        }

        private void fHitung_Load(object sender, EventArgs e)

        {

       

        }           

        private void rdKeliling_CheckedChanged(object sender, EventArgs e)

        {

            if (this.rdKeliling.Checked == true)

            {

                rdLuas.Checked= false;

                pilih = "Keliling";

            }

        }

        private void rdLuas_CheckedChanged(object sender, EventArgs e)

        {

            if (this.rdLuas.Checked == true)

            {

                rdKeliling.Checked = false;

                pilih = "Luas";

            }           

        }

        private void cmdBatal_Click(object sender, EventArgs e)

        {

            txtLebar.Clear();

            txtPanjang.Clear();

            rdLuas.Checked = false;

            rdKeliling.Checked = false;

            txtPanjang.Focus();

            Application.Exit();

        }

        private void cmdProses_Click(object sender, EventArgs e)

        {

            decimal panjang, lebar;

            panjang = Decimal.Parse(this.txtPanjang.Text);           

            lebar = Decimal.Parse(this.txtLebar.Text);

                if (pilih == "Luas")

                {

                    hasil = panjang * panjang;

                }

                else if (pilih == "Keliling")

                {

                    hasil = ((2 * panjang) + (2 * lebar));

                }

              

             MessageBox.Show("Jadi " + pilih +" adalah " + hasil, "Informasi", MessageBoxButtons.OK, MessageBoxIcon.Information);

               

        }

               

    }

}

Tugas membuat Program Copy Paste

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;

using System.IO;

namespace Copas

{

    public partial class FCopier : Form

    {

        public FCopier()

        {

            InitializeComponent();

        }

        private void btnBrows1_Click(object sender, EventArgs e)

        {

            string cari = "";

            openFileDialog1.Filter = "All Files(*.*)|*.*";

            openFileDialog1.ShowDialog();

            cari = openFileDialog1.FileName;

            textBox1.Text = (cari);

        }

        private void btnbrows2_Click(object sender, EventArgs e)

        {

            string simpan = "";

            saveFileDialog1.Filter = "All Files(*.*)|*.*";

            saveFileDialog1.ShowDialog();

            simpan = saveFileDialog1.FileName;

            textBox2.Text = (simpan);

        }

        private void btnCopy_Click(object sender, EventArgs e)

        {

            MessageBox.Show("Apa anda yakin ingin mengopy");

            File.Copy(textBox1.Text, textBox2.Text);

        }

        private void btnMove_Click(object sender, EventArgs e)

        {

            MessageBox.Show("Apa anda yakin ingin memindah");

            File.Move(textBox1.Text, textBox2.Text);

        }

        private void btnDelete_Click(object sender, EventArgs e)

        {

            MessageBox.Show("Apa anda yakin ingin menghapus");

            File.Delete(textBox1.Text);

        }

    }

}