Say we are about to build an ArrayList. Your ArrayList should guarantee that the array capacity is at most four times the number of elements. What would you like to do to maintain such a limit on the capacity? What is the benefit of using iterators? Can you describe your first experience of GUIs? And could you describe what is the advantage of using GUIs over Command-Line Interface (CLI) operations?

Array list which simply refers as the one that it can be used to store the dynamic arrays, Iterators which are helpful in the simplification of the code and also use the code in general form. GUI states graphical user interface, CLI states command line interface.1, Say we are about to build an ArrayList. Your ArrayList should guarantee that the array capacity is at most four times the number of elements. What would you like to do to maintain such a limit on the capacity? Array List which are used to store the dynamic means of storage memory, in the programming languages array list are used to do the manipulations so that the size and the capacity are not mentioned in particular because it can used to store the very large of size as well as the capacity. The Size of an array can be resizable. The insertion and Deletion is same as array and array list unless in the array list not able to create a new array for manipulations. The elements can be easily added or appended or to be removed without the creation of a new array. The Array list should guarantee that the array capacity is at most four times the number of the elements which is specified. If we want to change the size, we need to create a new array of the desired size, and then copy elements from the old array to the new array, and use the new array. In our example, arr can only hold int values. Arrays can hold primitive values, unlike ArrayList, which can only hold object values. Yes it is not very helpful in order to maintain such a limit on the capacity because when we use the unlimited capacity there exists the arrays flexibility in the doing of the higher and complex manipulations. 2, What is the benefit of using iterators? An iterator which refers to the one it is an abstraction over how a collection is implemented. It also lets you go over the whole collection and also it is one item at a time, and optionally with the removing items. Use of an iterator which are really simplifies the code and also use to makes it general. Benefits of using this iterator in the API include: The Iterators which treats variables of all types, sizes, and shapes uniformly, whether they are fit in memory or not, even if it is a single row won't fit in memory It also makes recursion unnecessary in handling arrays of arbitrary dimensionality It also used to accesses data efficiently, using largest blocks that will fit in memory buffer of designated size It also used to takes care of pesky leftovers, when smaller pieces are needed at the end of a loop to finish what's left works for either netCDF-3 or netCDF-4 enabled libraries It takes an advantage of the chunking when it is present, reading a chunk-at-a-time rather than which it is along dimension axes It also supports iterating over with the multiple variables concurrently, because of an each variable's iteration state and it is maintained in its own iterator structure. 3, Can you describe your first experience of GUIs? And could you describe what is the advantage of using GUIs over Command-Line Interface (CLI) operations? A graphical user interface (GUI) which it is a layer of technology with which that a user engages and allows them to visually interact through things like icons, menus, and other graphics. For e.g., that the program on the device which continuously checks the screen to find the location and the movements of the pointing devices on the screen. It also used to monitors the frequency and timing of the movement, determines what the user intended, and then takes these actions. The First experience of the GUIs are that includes the computer monitors, smartphones, tablets, gaming systems etc. Advantages of GUI over CLI One can in easy at the editing of the configuration manually. One can memorize tasks easily as in CLI and also it is one which has to type commands the terminal, which may be difficult for most of the beginners. It also enables the average computer users to interact with the computer. ... The main feature of any software it is its ease of use. It is very easy to communicate. Visual representation of data and it is recognized faster than text Thus all the given section of the questions which contains the information of Array list, iterators and advantage of GUI over CLI are clearly explained.