I'm sure in the bowls of Java ArrayLists are just arrays and they are doing all the work for you behind the scenes. You first need a library for ArrayLists. import java.util.ArrayList; If you are in ...

In Java, an array is a contiguous block of memory with an immutable length chosen at instantiation. Its elements are stored in place—primitives remain un-boxed—so indexed access (arr[i]) is a constant ...