C#

Do you want to know more?

Do you want to know more?

void StupidFunction( SomeObject * o )
{
   delete o;
   o = null;
}

SomeObject * obj = new SomeObject();
StupidFunction( obj );
if( obj )
{
   obj->Bronk();
   delete obj;
}

using System;
 
class Test
{
  static void Main()
  {
    string value = "Hello, world!";
    Console.WriteLine(value);
 
    value.Replace("Hello", "Guten tag");
    Console.WriteLine(value); // still prints "Hello, world!"
 
    Change(ref value);
    Console.WriteLine(value);
  }
 
  static void Change(ref string value)
  {
    value = "Tschuss!";
  }
}

using System;
using System.Drawing;
using System.Windows.Forms;
 
class Test : Form
{
  static void Main()
  {
    Application.Run(new Test());
  }
 
  Test()
  {
    FormBorderStyle = FormBorderStyle.None;
    Bounds = Screen.FromControl(this).Bounds;
 
    Button btn = new Button();
    Controls.Add(btn);
    btn.Location = new Point(8, 8);
    btn.Text = "Close";
    btn.Click += new EventHandler(Close);
  }
 
  private void Close(object sender, EventArgs e)
  {
    Close();
  }
}