17 lines
819 B
Markdown
17 lines
819 B
Markdown
## Property Delegation Tools (#2)
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The starter code defines a `data class` called `Flag` containing a `Boolean`
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called `b` with a default value of `false`. In `main()`, create three `var`s:
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`d` of type `Double`, `s` of type `String` and `f` of type `Flag`, all delegated
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to `notNull()`. For `d` and `f`, use explicit type declarations but for `s` use
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a type parameter for `notNull()`.
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Using `capture` from `atomictest`, try reading from `d`, `s` and `f` before
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they are initialized and validate the output using `atomictest.eq`. Then set
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`d` to `1.1`, `s` to `"yes"` and `f` to `Flag(true)` and use `eq` to verify
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that they all take on the new values.
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<sub> This task doesn't contain automatic tests,
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so it's always marked as "Correct" when you run "Check".
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Please compare your solution with the one provided! </sub>
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