Suppose we want a list of Strings instead of a list of ints
In Java, String is a type defined in a package java.lang.
Strings are objects (int's are not objects).
The construction is nonetheless similar: we just store a String in the list cell rather than an int.
We name this type StringList in contrast to IntList.
To create StringList, given IntList, simply use a text editor:
Link to StringList.java which shows the result.
What is actually being stored is a reference to a String. This allows all such cells to have the same size.
Were we to instead store the characters of the string in the cell directly, each cell might have a different size. This is ok, but it would create additional management problems for us.
Since String is a standard type, it is simpler to pass off such management aspects to the String type itself.
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