C#

Brian_TheLion wrote:

a lot of them are aimed at console programming

using System;

namespace HelloWorld
    {
    class Program
        {
        static void Main(string[] args)
            {
            Console.WriteLine("Hello World!");
            }
        }
    }

using System;
using System.Windows.Forms;

namespace HelloWorldForms
    {
    /// <summary>
    /// Main form for application
    /// </summary>
    public partial class FrmMain : Form
        {
        #region Constants
        #endregion

        #region Fields
        #region Internal
        #endregion

        #region Property bases
        #endregion
        #endregion

        #region Properties
        #endregion

        #region Regular Expressions
        #endregion

        #region Enums
        #endregion

        #region Constructors
        /// <summary>
        /// Default constructor
        /// </summary>
        public FrmMain() => InitializeComponent();
        #endregion

        #region Events
        #region Event Constructors
        #endregion

        #region Event Handlers
        #region Form
        /// <summary>
        /// Restore size and location (if the user doesn't
        /// override it)
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void FrmMain_Load(object sender, EventArgs e)
            {
            if ((ModifierKeys & Keys.Shift) == 0)
                {
                this.LoadLocation();
                }
            }
        /// <summary>
        /// Save the size and location (if the used doesn't
        /// override it)
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void FrmMain_FormClosing(object sender, FormClosingEventArgs e)
            {
            if ((ModifierKeys & Keys.Shift) == 0)
                {
                this.SaveLocation();
                }
            }
        /// <summary>
        /// Called once when form displayed for first time
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void FrmMain_Shown(object sender, EventArgs e)
            {
            }
        #endregion
        /// <summary>
        /// He pressed the button!
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void butPressMe_Click(object sender, EventArgs e)
            {
            labBanner.Text = "Hello World!";
            }
        #endregion
        #endregion

        #region Threads
        #endregion

        #region Public Methods
        #endregion

        #region Overrides
        #endregion

        #region Private Methods
        #endregion
        }
    }

namespace HelloWorldForms
    {
    partial class FrmMain
        {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
            {
            if (disposing && (components != null))
                {
                components.Dispose();
                }
            base.Dispose(disposing);
            }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
            {
            this.labBanner = new System.Windows.Forms.Label();
            this.butPressMe = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // labBanner
            // 
            this.labBanner.Location = new System.Drawing.Point(13, 113);
            this.labBanner.Name = "labBanner";
            this.labBanner.Size = new System.Drawing.Size(259, 23);
            this.labBanner.TabIndex = 0;
            this.labBanner.Text = "Press the button!";
            this.labBanner.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
            // 
            // butPressMe
            // 
            this.butPressMe.Location = new System.Drawing.Point(12, 158);
            this.butPressMe.Name = "butPressMe";
            this.butPressMe.Size = new System.Drawing.Size(260, 23);
            this.butPressMe.TabIndex = 1;
            this.butPressMe.Text = "Press here!";
            this.butPressMe.UseVisualStyleBackColor = true;
            this.butPressMe.Click += new System.EventHandler(this.butPressMe_Click);
            // 
            // FrmMain
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(284, 261);
            this.Controls.Add(this.butPressMe);
            this.Controls.Add(this.labBanner);
            this.Name = "FrmMain";
            this.Text = "One off jobs";
            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.FrmMain_FormClosing);
            this.Load += new System.EventHandler(this.FrmMain_Load);
            this.Shown += new System.EventHandler(this.FrmMain_Shown);
            this.ResumeLayout(false);

            }

        #endregion
        private System.Windows.Forms.Label labBanner;
        private System.Windows.Forms.Button butPressMe;
        }
    }

using System.Windows;

namespace Hello {

  public partial class MainWindow : Window {
    public MainWindow() {
      InitializeComponent();
    }

    public void Terminate(object sender, RoutedEventArgs evtArg) {
      Application.Current.Shutdown();
    }
  }
}

public void Terminate(object sender, RoutedEventArgs evtArg) {
  Application.Current.Shutdown();
}

<Window x:Class="Hello.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        mc:Ignorable="d"
        Title="Hello" Height="100" Width="120">
  <StackPanel HorizontalAlignment="Left">
    <TextBlock x:Name="textBlock" Text="Hello World"/>
    <Button x:Name="button" Content="OK" Click="Terminate"/>
  </StackPanel>
</Window>

<StackPanel HorizontalAlignment="Left">
  <TextBlock x:Name="textBlock" Text="Hello World"/>
  <Button x:Name="button" Content="OK" Click="Terminate"/>
</StackPanel>

#include <iostream>

int main() {
    std::cout << "Hello World!";
    return 0;
}

Quote:

Is Windows Forms a requirement? A major part of C# GUI programming today is done with WPF, Windows Presentation Foundation.

private static int FactorialRecursive(int x)
    {
    return (x > 1 ? x * FactorialRecursive(x - 1) : 1);
    }
private static int FactorialIterative(int x)
    {
    int f = 1;
    while (x > 1)
        {
        f *= x--;
        }
    return f;
    }