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Editorial Team
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Asked: 2026-06-04T17:06:43+00:00

scala> Array.fill(3){ math.random } <console>:6: error: value fill is not a member of object

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scala> Array.fill(3){ math.random }
<console>:6: error: value fill is not a member of object Array
       Array.fill(3){ math.random }

Am I missing something here? I can’t get any of my book’s examples or even the examples write out of the scala source code to work.

Welcome to Scala version 2.7.7final (OpenJDK Server VM, Java 1.6.0_20)
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1 Answer

  1. Editorial Team

    Because Array doesn’t have a fill method in Scala 2.7.7… that’s pretty old. You should probably just upgrade to a more recent version. Here’s my output for the exact same code… note the version:

    Welcome to Scala version 2.9.0.1 (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_21).
Type in expressions to have them evaluated.
Type :help for more information.

scala> Array.fill(3){ math.random }
res0: Array[Double] = Array(0.1074472419841086, 0.06627471316010758, 0.08994384621689899)
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