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Construct an element with initial values.
Array(1, 2, 3)res0: Array[Int] = Array(1, 2, 3)new Array[String](3)res1: Array[String] = Array(null, null, null)Construct an array of given size with all zeros.
Array.fill(3){0}res2: Array[Int] = Array(0, 0, 0)new Array[Int](3)res3: Array[Int] = Array(0, 0, 0)