PROGRAM STOPWATCH 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.Diagnostics; namespace Pertemuan1 { public partial class Form1 : Form { private Stopwatch stopw = null; public Form1() { InitializeComponent(); this.StartPosition = FormStartPosition.CenterScreen; this.FormBorderStyle = FormBorderStyle.FixedSingle; this.MaximizeBox = false; } private void label1_Click(object sender, EventArgs e) { } private void Form1_Load(object ...