2.10: Chapter Summary
- Page ID
- 37596
\( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\)
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.
- Categories are groups of related classes.
- A new class is created by sending a message to its superclass.
- Protocols are groups of related methods.
- A new method is created or modified by editing its definition in the browser and then accepting the changes.
- The inspector offers a simple, general-purpose GUI for inspecting and interacting with arbitrary objects.
- The system browser detects usage of undeclared methods and variables, and offers possible corrections.
- The
initialize
method is automatically executed after an object is created in Squeak. You can put any initialization code there. - The debugger provides a high-level GUI to inspect and modify the state of a running program.
- You can share source code filing out a category.
- A better way to share code is to use Monticello to manage an external repository, for example defined as a SqueakSource project.