Write a method that populates a given array with 'P' at every third index position starting at index 0, o' at every third index position starting at index 1, and 'p' at every third index position starting at index 2. ( For example, executing your code on an array of size 11 would result in the following array: Index 2 4 5 7 10 P
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A: a[0] = 4 a[1] = 2 a[2] = -2 a[] = {4, 2, -2}
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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} toWrite a program that creates array of 10 integers. Ask the user to enter the data in the array. Each time the data entered in the array should be unique. Your program should not allow the user to enter the duplicate values in the array. After feeding data into the array created, create another array of the 10 integers and save the data of 1st array in the reverse order into the second array. For Example Array 1 1 2 3 4 5 6 7 8 9 10 Array 2 10 9 8 7 6 5 4 3 2 1Write a method with header static void DisplayIntArray(int[] numbers). The first argument is an array of ints. There is no return value. This method displays all the elements of the argument on a single line. Each item will occupy three columns.Call this method from main with a suitable argument. Write a method with header static int[] GenerateRandomIntArray(int numberOfItems, int largestValue). The first argument is an int indicating the number of elements that will be present in the return array. The second argument is an int representing the largest item in the array. The returned value is an array of integers. This method does the following: Declare and initialized a variable of type Random (Random generator = new Random();) Declare an array of type int (you may call it result) Allocate storage for the correct number of items Using your favorite looping statement, assign a random integer to each element of the array (result[i] = generator.Next(largestValue);) In your…
- please help me with this JAVA Programming challenge from chapter 7. Below is the challenge question Thank you 17. 2D Array Operations Write a program that creates a two-dimensional array initialized with test data. Use any primitive data type that you wish. The program should have the following methods: getTotal. This method should accept a two-dimensional array as its argument and return the total of all the values in the array. getAverage. This method should accept a two-dimensional array as its argument and return the average of all the values in the array. getRowTotal. This method should accept a two-dimensional array as its first argument and an integer as its second argument. The second argument should be the subscript of a row in the array. The method should return the total of the values in the specified row. getColumnTotal. This method should accept a two-dimensional array as its first argument and an integer as its second argument. The second argument should be the…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…TableAA.java Write a program that will store a multiplication table in a 2-D array. The user will enter how many lines (rows) it will have. The table will be printed to the screen. (Make it look nice – consider using printf.) This program will contain a static method. This method will take in an integer (the user’s number) and it will return a 2-D array. The code inside of the method will create the array, fill it with all the appropriate values that one would expect in a multiplication table, and then return that filled array. In the main method, you will ask the user how many lines they want to see and then you will use your static method to get the array. Once you have the array back from the static method, use nested for loops to print it in table form. See samples on the following pages. Program only needs to run once. Add try/catches so the user can only enter positive integers (1 and higher).
- 3. write a method called insert that inserts an element into an integer array. It should take 3 parameters: an int array, the number to be inserted and the index it should be inserted at. It should return a new array that has the element inserted at the index (the new array should have a length 1 longer than the original array).ANSWER IN JAVA: Write an application that inputs five numbers, each between 10 and 100, inclusive. As each number is read, display it only if it’s not a duplicate of a number already read. Provide for the “worst case,” in which all five numbers are different. Use the smallest possible array to solve this problem. Display the complete set of unique values input after the user enters each new value. NOTE: looking for the output to appear on three lines as shown in the results STANDARD OUTPUT: Enter·an·integer·between·10·and·100:This·is·the·first·time·100·has·been·entered↵ Enter·an·integer·between·10·and·100:Enter·an·integer·between·10·and·100:This·is·the·first·time·10·has·been·entered↵ Enter·an·integer·between·10·and·100:This·is·the·first·time·20·has·been·entered↵ Enter·an·integer·between·10·and·100:The·complete·set·of·unique·values·entered·is:↵ Unique·Value·1:·is·100↵ Unique·Value·2:·is·10↵ Unique·Value·3:·is·20↵2. Rotate Left k cells Use Python Consider an array named source. Write a method/function named rotateLeft( source, k) that rotates all the elements of the source array to the left by 'k' positions. You must execute the method by passing an array and number of cells to be shifted. After calling the method, print the array to show whether the elements have been shifted properly. Example: source=[10,20,30,40,50,60] rotateLeft(source,3) After calling rotateLeft(source,3), printing the array should give the output as: [ 40, 50, 60, 10, 20, 30]
- In this problem you will write a JAVA program that will randomize the elements of anarray created by the user.1. Prompt the user to enter an integer, then asks the user to enter that many values.Store these values in an array and print the array. Then re-shuffle the arrayelements so randomly. Do not just randomize the order in which they areprinted; actually change the way they are stored in the array. Do not createa second array; just rearrange the elements within the array you have.(Hint: Swap elements that need to change places.)When the elements have been randomized, print the array again.2. Create another version of your program that applies the following modification tothe randomization process: elements that have been already swappedshould not be swapped again.Example: if element 1 was swapped with element 10, when the 10 thelement is reached it should not be swapped again. Yet if the 2 nd elementis reached it can be swapped with the 10 the element. This is a valid swap.Hint:…Problem: Write a method that will determine whether a given value can be made given an array of coin values. For example, each value in the array represents a coin with that value. An array with [1, 2, 3] represents 3 coins with the values, 1, 2, and 3. Determine whether or not these values can be used to make a desired value. The coins in the array are infinite and can only be used as many times as needed. Return true if the value can be made and false otherwise. Dynamic Programming would be handy for this problem. Data: An array containing 0 or more coin values and an amount. Output: Return true or false. Sample Data ( 1, 2, 3, 12, 5 ), 3 ( 4, 15, 16, 17, 1 ), 21 ( 1 ), 5 ( 3 ), 7 Sample Output true true true falseIn Java Write an application that inputs five numbers, each between 10 and 100, inclusive. As each number is read, display it only if it’s not a duplicate of a number already read. Provide for the “worst case,” in which all five numbers are different. Use the smallest possible array to solve this problem. Display the complete set of unique values input after the user enters each new value. Rough output in screenshot