If a method given an ArrayList as a parameter calls a second method giving it the same ArrayList, and that second method deletes one of the elements, this will: (produce a non-deterministic result? trigger an error? have an effect? have no effect?) on the first ArrayList. Java uses: (pass by reference? pass by value?) So when an object is passed to a method, what is actually passed is just : (the name of the object? a pointer to the object? the index of the object?) . Select the correct answer

Rename the show method to people Override the show method in student and in the other class you created (this will be the polymorphic method) In main program, create an array of 3 objects of class people Instantiate each array position with a different object (people, student, other) With a loop, display all the objects in the array.

5. How to find all the leaders in an integer array in java? An element is leader if it is greater than all the elements to its right side. And the rightmost element is always a leader. For example int the array {16, 17, 4, 3, 5, 2}, leaders are 17, 5 and 2..

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 statements that use a for each loop to cycle through all the elements in an ArrayList of doubles named grades.

In JAVA Please. Complete the calcAverage() method that has an integer array parameter and returns the average value of the elements in the array as a double. Ex: If the input array is: 1 2 3 4 5 then the returned average will be: 3.0 import java.util.*;public class Numbers {// calcAverage() takes in an int array and returns the average value of elements in the array as a double.public double calcAverage(int[] nums) {/* Type your code here. */ }public static void main(String[] args) {Numbers numObject = new Numbers();int [] nums = {1,2,3,4,5};System.out.println(numObject.calcAverage(nums)); }}

Task 2: Write a static method which takes an ArrayList of Strings and an integer and changes the ArrayList destructively to remove all Strings whose length is less than the integer argument. So if the integer argument is 4 and the ArrayList is: tomato cheese chips fruit butter tea buns pie The output tomato cheese chips fruit butter is:

Provide a different implementation of ChoiceQuestion. Instead of storing the choices in an array list, the addChoice method should add the choice to the question text. For this purpose, an addLine method has been added to the Question class. Use the following files: Question.java /** A question with a text and an answer.*/public class Question{ private String text; private String answer; /** Constructs a question with empty text and empty answer. */ public Question() { text = ""; answer = ""; } /** Sets the answer for this question. @param correctResponse the answer */ public void setAnswer(String correctResponse) { answer = correctResponse; } /** Checks a given response for correctness. @param response the response to check @return true if the response was correct, false otherwise */ public boolean checkAnswer(String response) { return response.equals(answer); } /** Add a line of text to...

Write the Java method averageOfDoubles that is passed an array of double values, and returns the average of the array values.You can assume the array length is a positive integer.

Intellij - Java Write a program which does the following: Create a class with the main() method. Take a string array input from the user in main() method. Note: Do not hardcode the string array in code. After the String array input loop, the array should be: words[] = {"today", "is", "a", "lovely", "spring","day", "not", "too", "hot", "not", "too", "cold"}; Print the contents of this array using Arrays.toString() method. Write a method called handleString() that performs the following: Takes a String[] array as method parameter (similar to main method). Loop through the array passed as parameter, and for each word in the array: If the length of the word is even, get the index of the last letter & print that index. Use length() and indexOf() String object methods. If the string length is odd, get the character at the 1st position in the string & print that letter. Use length() and charAt() String object methods.

JAVA you guys returned the question and said that it is a writing assignment but it is not. It is a java question, multiple-choice no coding. Please help me with this.

Write a call to Arrays static method equals with arguments arrayl and array2.

Write the following method that returns the sum of all numbersin an ArrayList:public static double sum(ArrayList<Double> list)Write a test program that prompts the user to enter five numbers, stores them inan array list, and displays their sum.