“ The ArrayList is no better than an array since it can only store homogeneous data – that is all the data needs to be the same type.” Confirm or refute! Back up your position with code!
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“ The ArrayList is no better than an array since it can only store homogeneous data – that is all the data needs to be the same type.” Confirm or refute! Back up your position with code!
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- Compare and contrast the array and arrayList. Give at least one example that describe when to use arrayList compared to an array.java Write a program to do the following: Create an ArrayList of Student. Add 7 elements to the ArrayList. Use for each loop to print all the elements of an ArrayList. Remove an element from an ArrayList using the index number. Remove the element from an ArrayList using the content (element name).Create a Java array FirstArray, type int, length 10. Initialize it with the multiple of 2. Print the array using comma separators. (Hint: Use Arrays.toSring method. You need to import java.util.Arrays package) Print the array with vertical line (|) separator. DO NOT put the vertical line after last element.
- Write Java code for the following: Create an Arraylist that can hold Integer objects. Check and display whether the Arraylist is empty or not. Add an element 50 into the Arraylist. Add another element 60 in the position of 0 in the Arraylist. Replace the element to 70 in index 1.Execute the following statements over initially empty ArrayList myList one after another (cascade). Explain what was changed after each statement (what did it do?) myList.add("z"); ArrayList content: Your explanation (where this output came from): myList.add(0, "a"); ArrayList content: Your explanation (where this output came from): myList.add("t"); ArrayList content: Your explanation (where this output came from): myList.add(2,"w"); ArrayList content: Your explanation (where this output came from): myList.set(0,"b"); ArrayList content: Your explanation (where this output came from):Write Java code for the following: a. Create an Arraylist that can hold Integer objects. b. Check and display whether the Arraylist is empty or not. C. Add an element 50 into the Arraylist. d. Add another element 60 in the position of 0 in the Arraylist. e. Replace the element to 70 in index 1.
- Please keep the simulation neat and well organized. It is a request. NOTE: I AM ASKING FOR SIMULATION, NOT THE CODE. SO DON'T WRITE THE CODE. Perform QuickSort on the given array. You need to show the whole simulation. A = [10,3,9,18,21,26,30,8,15,6,17].need Urgent Requirement: There will one question related to ArrayList class similar to the following question. The following driver has created a an ArrayList of Point objects. write a method that moves all the points with the value of x greater than its value of y to the end of the list. .Write a program that do the following: Ask the user to input his/her first name and store it in a String variable. Create an ArrayList with the type String. Each letter of the inputted name should be stored in a separate element of the ArrayList. Print the ArrayLists
- What transpires when a parameter for an array is sent in with either the ref or out keyword, and the results are observed?Main difference between an array and an ArrayList is that an ArrayList can store more data types an ArrayList can store more elements an ArrayList executes faster for retrieval and insertion an ArrayList takes care of the memory management automatically an ArrayList uses positions and an array uses indices4. Now examine the ArrayList methods in the above table, a) Which method retrieves elements from the ArrayList? b) Which method replaces the value of an element that already exists in the ArrayList? c) Which two methods initializes the value of an element? d) How do the two methods in (c) differ? Which method(s) would be appropriate in the above Java program (after we convert it to work with ArrayLists)?