CS 101 - 9/15/2011

Pictures Selection/Opening

We really don't waant to "hard code" the name
 of a file into a program, because such a name
 depends on the overall folder structure of that
 particular computer

We want to have the user of the program to select
 the file when the program runs.

To do this we use the pickAFile () method from the
  FileChooser class.

  String filename;
  filename = FileChooser.pickAFile ();
  Picture p;
  p = new Picture (filename);


Methods

  Subprogram inside of a class of a program


  public static <returnType> <methodName> ( <paramList> )
    {
        <statement(s)>
    }


Example: Write a method to draw a square with a turtle


  public static void drawSquare ( Turtle tParam )
    {

    }

Each method is invokes by a method call statement.

When calling a public static method from the current
 class, we can just use the method name in the 
 call statement.

  Turtle t; . . .

  drawSquare ( t );