By Oscar Nierstrasz, Stéphane Ducasse, Damien Pollet
Black A.P. Ducasse S. Nierstrasz O. Pollet D. Squeak through instance (Square Bracket, 2008) (ISBN 9783952334102)
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Once you have selected a version, you can load it onto your image. Open the SBE--Quinto repository you have just saved. Monticello has many more capabilities, which will be discussed in depth in Chapter 6. ca/Monticello/. 10 Chapter summary In this chapter you have seen how to create categories, classes and methods. You have see how to use the system browser, the inspector, the debugger and the Monticello browser. 50 A first application • Categories are groups of related classes. • A new class is created by sending a message to its superclass.
Edit the code so that it reads as follows, and accept it. ) a BorderedMorph is a Morph with a border. We could also insert the names of the instance variables between the quotes on the second line, but for now, let’s just leave that list empty. Now let’s define an initialize method for SBEGame. 4: Initializing the game 1 2 3 4 5 6 7 8 9 initialize | sampleCell width height n | super initialize. n := self cellsPerSide. sampleCell := SBECell new. width := sampleCell width. height := sampleCell height.
Change the value of bounds to 0@0 corner: 50@50 and accept it. 6: The inspector used to examine a SBECell object. The bottom pane of the inspector is a mini-workspace. It’s useful because in this workspace the pseudo-variable self is bound to the object being inspected. Type the text self openInWorld in the bottom pane and do it . The cell should appear at the top left-hand corner of the screen, indeed, exactly where its bounds say that it should appear. Blue-click on the cell to bring up the morphic halo.
