Explain briefly how generics make ArrayList more flexible
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Explain briefly how generics make ArrayList more flexible.
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- You are familiar with ArrayList and have used it in different capacities. The most prominent feature of ArrayList is that it expands automatically as elements are added to it. It can be traversed using a for loop, for each loop and iterator( which you have implemented in Lab 2).In this lab you are going to implement your own ArrayList and its functionalities.Task 1.1: Create a class Generic ArrayList with attributes.Task 1.2: Implement a constructor for your ArrayList class.Task 1.3: Implement add() method for adding elements to ArrayList. Remember, ArrayList adds elements dynamically. It doesn't depend on user defined size.Task 1.4: Implement remove() method for removing an element from a specific index. Remember, ArrayList stores elements in a consecutive sequence. If an element is removed from middle you have to re-adjust the elements in the correct sequence. Note: Break down your implementation by defining helper methods for different tasks, rather than implementing your logic in a…Besides the ArrayList class in Java, do you think there are other classes that are implemented with an array. Name those predefined Java classes, if any.What are wrapper classes and why are they useful for ArrayLists? Include examples of autoboxing and unboxing.
- Explain the use of generics in conjunction with the Comparable interface in Java. How does it enhance type safety when sorting collections?How can one evaluate the state of an ArrayList to assess how effectively it is functioning?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?