2. (Average an array) Write two overloaded methods that return the average of an array with the following headers: public static int average (int[] array) public static double average (double[] array) Write a test program that prompts the user to enter ten double values, invokes this method, and displays the average value.
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- 3. (Eliminate duplicates) Write a method that returns a new array by eliminating the duplicate values in the array using the following method header: public static int[] eliminate Duplicates (int[] list) Write a test program that reads in ten integers, invokes the method, and displays the result.1. (Find the smallest element) Write a method that finds the smallest element in an array of double values using the following header: public static double min(double[] array) Write a test program that prompts the user to enter ten numbers, invokes this method to return the minimum value, and displays the minimum value.1) Write a method that returns the range of an array of integers. The range is the difference between the highest and lowest values in the array. The signature of the method should be as follows. public static int computeRange(int[] values)
- 1.Answer the following questions: 1(a) Write a method to compute and return the value of maxEven and minOdd where maxEven is the largest even element of an int array and minOdd is the smallest odd element of the int array. The method is passed the int array and an int value that denotes the number of elements in the array. You may assume that the int array has at least 1 element in it. 1(b) Write a method to compute and return the value of countEven and countOdd where countEven is the number even elements in an int array and countOdd is the number of odd elements in the int array. The method is passed the int array and an int value that denotes the number of elements in the array. You may assume that the int array has at least 1 element in it.Description: Write a method that return the average of an array with the following header: public static double average(double[] array); In the main method, 5 double numbers are required to be entered. Input Example: 1.2 1.2 1.3 1.3 1.35 Output Example: The average value is 1.27TASK 3 Write a Java method that returns the location of the largest element in a two-dimensional array. public static int) locatelargest(double[] a) The return value is a one-dimensional array that contains two elements. These two elements indicate the row and column indices of the largest element in the two-dimensional array. Write a Java test Program that prompts the user to enter a two- dimensional array and displays the location of the largest element in the array. Here is a sample run: Enter the number of rows and columns of the array: 3 4 -Enter Enter the array: 23.5 35 2 10 Enter 4.5 3 45 3.5 |-Enter 35 44 5.5 9.6 -Enter The location of the largest element is at (1, 2)
- 7). (Sum ArrayList) Write the following method that returns the sum of all numbers in an ArrayList: public static double sum(ArrayList<Double> list) Note:- Please write a java code and also need an output for this program. (Also, let me know with what name file should be saved to get output)RetailItem Class Write a class named Retailltem that holds data about an item in a retail store. The class should have the following fields: • description. The description field references a String object that holds a brief description of the item. • unitsOnHand. The unitsOnHand field is an int variable that holds the number of units currently in inventory. • price. The price field is a double that holds the item's retail price. Write a constructor that accepts arguments for each field, appropriate mutator methods that store values in these fields, and accessor methods that return the values in these fields. Once you have written the class, write a separate program that creates three RetailItem objects and stores the following data in them: Description Units on Hand Price Item #1 Jacket 12 59.95 Irem #2 Designer Jeans 34.95 [rem #3 Shirt 24.95Indicate true or false for the following statements: Every element in an array has the same type. The array size is fixed after it is declared. The array size declarator must be a constant expression. The array elements are initialized when an array is declared.
- 3 E Instructions Write a program named Averages that includes a method named Average that accepts any number of numeric parameters, displays them, and displays their average. For example, if 7 and 4 were passed to the method, the output would be: 74 Average is 5. Test your function in your Main (). Tests will be run against Average () to determine that it works correctly when passed one, two, or three numbers, or an array of numbers. Averages.cs 1 using static System.Console; 2 public class Averages 3 { 4 public static void Main() { +56N 8 O } + } // Write your main hereExercise (Array and Method): Write a method called arrayToString(), which takes an int array and return a String in the form of {a1, a2, ..., an}. Take note that there is no comma after the last element. The method's signature is as follows: public static String arrayToString(int[] array) Also write a test driver to test this method (you should test on empty array, one-element array, and n-element array). Notes: This is similar to the built-in function Arrays.toString(). You could study its source code. Exercise (Array and Method): Write a boolean method called contains(), which takes an array of int and an int; and returns true if the array contains the given int. The method's signature is as follows: public static boolean contains(int[] array, int key) Also write a test driver to test this method. Exercise (Array and Method): Write a method called search(), which takes an array of int and an int; and returns the array index if the array contains the given int; or -1 otherwise. The…Java: the user enters array 3*4 print the max and min number, and their places in the array.