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380: Mainline

Instead of using new: and at:put:, you can create and initialize small arrays, with one to four elements, by using one of four methods: with:, with:with:, with:with:with: or with:with:with:with:. In the following, for example, a with:with:with:with: message creates and initializes a four-element Array instance:

Array with: 570 with: 720 with: 640 with: 720