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@ -37,7 +37,7 @@ println("Hello world!")
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print("Hello world")
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// Declaring values is done using either var or val
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// val declarations are immutable, whereas var's are mutable. Immutablility is
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// val declarations are immutable, whereas var's are mutable. Immutability is
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// a good thing.
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val x = 10 // x is now 10
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x = 20 // error: reassignment to val
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