A bit new to methods and need a little bit of help. Swap Method Your task is to write a public static method named swap that takes a single parameter which is an array of doubles. This method should swap the first and last element in the array and then return the adjusted double array. You can assume that all arrays passed into the method are a length of 2 or more. For example, the test data provided when passed into the swap method should go from: {8.34, 7.221, 10.643, 93.2} to
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A bit new to methods and need a little bit of help.
Swap Method
Your task is to write a public static method named swap that takes a single parameter which is an array of doubles. This method should swap the first and last element in the array and then return the adjusted double array.
You can assume that all arrays passed into the method are a length of 2 or more.
For example, the test data provided when passed into the swap method should go from:
{8.34, 7.221, 10.643, 93.2}
to
Step by step
Solved in 2 steps
- Define an array to be a 121 array if all elements are either 1 or 2 and it begins with one or more 1s followed by a one or more 2s and then ends with the same number of 1s that it begins with. Write a method named is121Array that returns 1 if its array argument is a 121 array, otherwise, it returns 0. There is one additional requirement. You should return 0 as soon as it is known that the array is not a 121 array; continuing to analyze the array would be a waste of CPU cycles. If you are programming in Java or C#, the function signature isint is121Array(int[ ] a) If you are programming in C or C++, the function signature isint is121Array(int a[ ], int len) where len is the number of elements in the array a. Examples a is then function returns reason {1, 2, 1} 1 because the same number of 1s are at the beginning and end of the array and there is at least one 2 in between them. {1, 1, 2, 2, 2, 1, 1} 1 because the same number of 1s are at the beginning and end of…java In this task, you need to write 2 overloaded methods findMax() that will find a maximum number in the array. First version should work with array of integers (int[]) and return int, and second method should work with an array of doubles (double[]) and return double as a result. Methods must have the same name and different parameters.Write a method that returns a new array by eliminating theduplicate values in the array using the following method header:public static int[] eliminateDuplicates(int[] list)Write a test program that reads in 10 integers, invokes the method, and displaysthe distinct numbers separated by exactly one space. Here is a sample run of theprogram: Enter 10 numbers: 1 2 3 2 1 6 3 4 5 2 ↵EnterThe distinct numbers are: 1 2 3 6 4 5
- JAVA PROGRAM Write a program that asks the user to input two integers a and b. Then create an array that has all integer from a to b. Print out the array. (Don’t forget to consider the situation of a=b, a<b, and a>b.) Example 1: Input two numbers: 6 2 Array is [6, 5, 4, 3, 2] Example 2: Input two numbers: 4 8 Array is [4, 5, 6, 7, 8] Pass the above array as a parameter to a method called average and return the average and print it out in the main method. (Do not use Math library to get the average.)Write a program that declares an array of 15 integers and reads the values from the user. Make sure that the user doesn’t enter a value greater than 10 (if the user enters a value not in the allowed range, discard that value and read another to put into the array). Now tell the number that occur maximum number of times in the array. For example for the following 7 has maximum occurrence. 4,7,3,3,2,7,1,5,7,9,9,9,7,8,10 Use both linear and binary search.Program64.javaWrite a program that demonstrates method overloading by defining and calling methods that return the area of a triangle, a rectangle, or a square. Program71.java Write a program that creates a 32-element array of random integers all from 1 to 100, inclusive. Then execute a custom method with the array as its only argument. The method should begin by using a loop to print the array elements in 4 rows and 8 columns, with all columns being five characters wide. Duplicates are okay. This same loop should determine how many integers in the array are odd numbers. After this loop ends, use this figure to declare a new array of integers named odds. Process the array again in the method, but this time with a foreach loop, and add the odd integers to the odds array. Return the odds array back to main. In main, report the size of the array and sort it ascending. Finally use a while loop to print the odd integers all on one line separated by spaces.
- Use Java programming. Write the removeEvens() method, which receives an array of integers as a parameter and returns a new array of integers containing only the odd numbers from the original array. The main program outputs values of the returned array. Hint: If the original array has even numbers, then the new array will be smaller in length than the original array and should have no blank elements. Ex: If the array passed to the removeEvens() method is [1, 2, 3, 4, 5, 6, 7, 8, 9], then the method returns and the program output is: [1, 3, 5, 7, 9] Ex: If the array passed to the removeEvens() method is [1, 9, 3], then the method returns and the program output is: [1, 9, 3] import java.util.Arrays; public class LabProgram { public static int[] removeEvens(int [] nums) { /* Type your code here */} public static void main(String[] args) { int [] input = {1,2,3,4,5,6,7,8,9};int [] result = removeEvens(input); // Helper method Arrays.toString() converts int[] to a…Write a method named minimum value, which returns the smallest value in an array that is passed (in) as an argument. The method must use Recursion to find the smallest value. Demonstrate the method in a full program, which does not have to be too long regarding the entire code (i.e. program). Write (paste) the Java code in this word file (.docx) that is provided. (You can use additional pages if needed, and make sure your name is on every page in this word doc.) Use the following array to test the method: int[] series array = {-5, -10, +1999, +99, +100, +3, 0, +9, +300, -200, +1, -300} Make sure that the series array only tests for values, which are positive, given your recursive method.The Utilities class contains three independent static methods and contains no fields (none should be added).The Utilities class contains the following 3 static methods that you must implement:1. QWERTY – If the argument is null, the length is anything other than 6, or if the element values are outside the inclusive boundof 1 to 7 throw the IllegalArgumentException with the message "Invalid parameter". Otherwise return a char array that hasinput[0] instances of 'Q', followed by input[1] instance of 'W', ....followed by input[5] instances of 'Y'. The length ofthe returned array should be the exact size needed to accommodate all the letters (no smaller or larger).2. turnTo1D – You can assume that the parameter array has at least 1 row and all rows are int array (might be an empty int array)and the parameter delta is a positive integer. The method returns a 1D array (possibly empty array) with all the values inarray that are in the range of the inclusive bound [value – delta to value +…
- 1)Write a method that takes an array of ints and returns the sum of all numbers that are even. For example, given an array {3, 4, 6}, you would return 10. 2)For this exercise, you are given an array of integers. Return true if every element in the array is an odd number, otherwise return false. 3) Given an array of strings, return the array in reverse order. For example, given: reverse({"one", "two", "three"}); You would return: {"three", "two", "one"} 4) For this exercise, you need to shift all the elements in the array one space to the right (increase the index of the element by 1). The last element will wrap around and become the new first element. For example, given: moveUp({"first", "second", "third", "fourth"}); You would return: {"fourth", "first", "second", "third"}Write a code in JAVA for storing information of Employee using array. Employee attributes for storing data are id (int), name (String), salary (int), department (String) and gender (char). Gender attribute can have one of two values m/M for male and f/F for female. You are required to implement following methods in your class. Prototype and description of methods is given below. Maximum 50 Employee can be stored. 1.void add(Employee e) this method receives Employee as an argument and adds it to end of existing. In case array contains data of 50 Employee display message “Out of memory” 2.int count( ) this methods returns total number of employee whose information is stored in array. 3.void remove(int id) this method receives id as argument and remove employee whose id matches with the provided argument. 4.Employee maxPaid( ) this method returns highly paid employee. If more than one employees are highly paid than return last from the given sequence. No need to write main method or main…(in Java language) Write a method that is inspired by a photo app that does the following. Ask the user to enter a size of array between 2 to 10. Based on the size entered, write a loop which asks the user to fill values into an integer array. Print the array contents using Arrays.toString(). For this integer array, write a logic that returns true if there exists a place to split the array such that the sum of the numbers on one side is equal to the sum of the numbers on the other. Otherwise return false. Examples: If the array is {1, 1, 1, 2, 1} then return true. If the array is {2, 1, 1, 2, 1} then return false If the array is {10, 10} then return true.