Write a Java method named average. The method should take an ArrayList of Integers as a parameter, compute the average of the elements in the ArrayList and return the average to the calling method.
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Write a Java method named average. The method should take an ArrayList of Integers as a parameter, compute the average of the elements in the ArrayList and return the average to the calling method.
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- JAVA: Below is a method intended to modify the input array by doubling each element and a main method that calls it. What does this code print out? If the method does not do what is intended, what needs to be modified?Description Write a Java program, called LinearSearch1 that contains a static method called findElement() that accepts a double array and a double as its parameters and return a boolean value if the double number entered is contained in the double array. In the main method you should use user input to take the element you wish to search for in the array. There is code there for your array, DO NOT CHANGE THIS CODE. Your program should call findElement() to check for the occurence of the double number entered in the array. You should print an appropriate message to the screen if the element is found. Output A message stating if the element is found. Sample Input 1 678.954 Sample Array 1 345.6 678.954 234.534 -89.23 Sample Output 1 678.954 was found in the array Sample Input 2 65.45 Sample Array 2 345.6 678.954 234.534 -89.23 Sample Output 2 65.45 was NOT found in the arrayIn java when an array is passed to a method, what does the method receive? A. The reference of the array B. A copy of the array C. Length of the array D. Copy of first element
- Java programming Write a method that takes an array of integers as a parameter. The method should return the occurrence of the even numbers in the passed arrayWrite 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.Java: Write a complete method to create an array of random integers. Method Specification The method takes in three integer parameters: the array size, the lower bound, and the upper bound. The method also takes in a boolean parameter. The method creates and returns an integer array of the specified size that contains random numbers between the lower and upper bound., using these rules: The lower bound is always inclusive. If the boolean parameter is true, the upper bound is also inclusive. If the boolean parameter is false, the upper bound is not inclusive (meaning it is exclusive). If any of the parameters are invalid, null is returned. Driver/Tester Program I have provided you with a driver/tester program that you can use to test your code before submitting. Paste your code into the placeholder at the top of the file. I strongly recommend running this program before you submit your homework. The program is designed to help you catch common errors and fix them before submitting.…
- Java Problem: Implementing a method to print a cell's neighbors on a 2D array. The method's header is provided. The main method (do not alter it)w ill read N numbers to create the 2D array and it will call the method for you. Do not go out of the bounds of the 2D array. I have attached what it should look like with the following input: 4 4 1 2 3 4 7 8 9 10 13 14 15 16 19 20 21 22 2 2 Code I have so far: import java.util.Arrays;import java.util.Scanner;public class Problem3 {public static void printNeighbours(int[][] data, int row, int col){}public static void main(String[] args) {Scanner kb = new Scanner(System.in);int[][] data = new int[kb.nextInt()][kb.nextInt()];for (int i = 0; i < data.length; i++) {for (int j = 0; j < data[0].length; j++) {data[i][j] = kb.nextInt();}}System.out.println("The 2D Array:");for (int[] cols : data) {System.out.println(Arrays.toString(cols));}int row = kb.nextInt();int col = kb.nextInt();System.out.printf("The centre point is: %d %d…Java: Write a complete method to create an array of random integers. Method Specification The method takes in three integer parameters: the array size, the lower bound, and the upper bound. The method also takes in a boolean parameter. The method creates and returns an integer array of the specified size that contains random numbers between the lower and upper bound., using these rules: The lower bound is always inclusive. If the boolean parameter is true, the upper bound is also inclusive. If the boolean parameter is false, the upper bound is not inclusive (meaning it is exclusive). If any of the parameters are invalid, null is returned. Driver/Tester Program I have provided you with a driver/tester program that you can use to test your code before submitting. Paste your code into the placeholder at the top of the file. Review the Homework FAQ page, which contains instructions and a video of how to use the provided file. If you aren't sure how to use the tester or have any…when an individual array element of an array of type int is passed to a method, it is passed by reference. True False note : in a java
- in java write a method that given an integer array, computes and returns the sum of all negative numbers in the array. Example: array: 13, -2, 3, -4, -5 result: x= -2 -4 -5; x= -11Pseudocode for Java code Write the algorithm in pseudocode for a method that accepts three parameters: an integer array, an integer representing the number of valid values in the array, and an integer representing a factor. The method will count the number of valid values in the array that are multiples of the factor and will return the count. There is a Java operator that might be very helpful in solving this problem. Testing Above problem: Assuming that the first two parameters are an array containing 4, 10, 15, 12, 8, 20, 100, 25, 32, 7, 28, and 48 and the number 12, come up with three good test cases for the factor and the return value. factor numMultiplesWrite 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.