An array is a basic data structure to store a collection of elements sequentially. Each element in the array can be accessed by index. An array has a fixed capacity and we need to specify the size of ...

But we can use the Java classes Integer and Boolean instead. We can still add numbers and truth-values to the ArrayLists (for example 17 or false) and we can read the elements from the ArrayList () ...

To reset ArrayList we have two options, one is to use clear() method and another is to use removeAll(). We dont need to worry if size of the ArrayList is small i.e. 10 to 100. But if ArrayList size ...