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This chapter has examples which need a place to hold the objects they create. The following line creates such a place; for now, treat it as magic. At the end of the chapter we will revisit it with an explanation. Type in:
Smalltalk at: #x put: 0 !
Now let's create some new objects.
4.2.1 An array in Smalltalk 4.2.2 A set in Smalltalk 4.2.3 Dictionaries Getting more sophisticated, eh? 4.2.4 Smalltalk dictionary A very important dictionary, really 4.2.5 Closing thoughts There always ought to be some closing thoughts
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