Task

Demonstrate how to achieve movement of the terminal cursor:

 how to move the cursor one position to the left
 how to move the cursor one position to the right
 how to move the cursor up one line (without affecting its horizontal position)
 how to move the cursor down one line (without affecting its horizontal position)
 how to move the cursor to the beginning of the line
 how to move the cursor to the end of the line
 how to move the cursor to the top left corner of the screen
 how to move the cursor to the bottom right corner of the screen


For the purpose of this task, it is not permitted to overwrite any characters or attributes on any part of the screen (so outputting a space is not a suitable solution to achieve a movement to the right).



Handling of out of bounds locomotion
This task has no specific requirements to trap or correct cursor movement beyond the terminal boundaries, so the implementer should decide what behavior fits best in terms of the chosen language.   Explanatory notes may be added to clarify how an out of bounds action would behave and the generation of error messages relating to an out of bounds cursor position is permitted.




static void Main(string[] args)
{
    //There will be a 3 second pause between each cursor movement.
    Console.Write("\n\n\n\n     Cursor is here -->   ");
    System.Threading.Thread.Sleep(3000);
    Console.CursorLeft = Console.CursorLeft - 1; //Console.CursorLeft += -1 is an alternative.
    System.Threading.Thread.Sleep(3000);
    Console.CursorLeft = Console.CursorLeft + 1;
    System.Threading.Thread.Sleep(3000);
    Console.CursorTop = Console.CursorTop - 1;
    System.Threading.Thread.Sleep(3000);
    Console.CursorTop = Console.CursorTop + 1;
    System.Threading.Thread.Sleep(3000);
    Console.CursorLeft = 0; //Move the cursor far left.
    System.Threading.Thread.Sleep(3000);
    Console.CursorLeft = Console.BufferWidth - 1;
    /* BufferWidth represents the number of characters wide the console area is.
        * The exact value may vary on different systems.
        * As the cursor position is a 0 based index we must subtract 1 from buffer width or we move the cursor out of bounds.
        * In some cases WindowWidth may be preferable (however in this demonstration window and buffer should be the same).
        */ 
    System.Threading.Thread.Sleep(3000);
    Console.SetCursorPosition(0,0); //I have used an alternative method for moving the cursor here which I feel is cleaner for the task at hand.
    System.Threading.Thread.Sleep(3000);
    Console.SetCursorPosition(Console.BufferWidth-1, Console.WindowHeight-1); //Buffer height is usually longer than the window so window has been used instead.
    System.Threading.Thread.Sleep(3000);
}
 