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learnIndexOf

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Author: Marty Stepp (on 2021/03/29)

Write a new method for the ArrayIntList class called learnIndexOf that returns the index of a particular value in the list. The method should return the index of the first occurrence of the target value in the list. If the value is not in the list, it should return -1. For example, if a variable called list stores the following values: 

[42, 7, -9, 14, 8, 39, 42, 8, 19, 0]

then the call list.learnIndexOf(8) should return 4 because the index of the first occurrence of the value 8 in the list is at index 4. Notice that we are using 0-based indexing. The call list.learnIndexOf(2) should return -1 because the value 2 is not in the list.

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This is a partial class problem. Submit code that will become part of an existing Java class as described. You do not need to write the complete class, just the portion described in the problem.

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