1. Create an array named arr1 with 20 random numbers between 1 and 10(inclusively). Then produce a new array arr2 based on arr1 as follows: arr2 has the same length as arr1. In arr2, each element is the sum of the corresponding element in arr1 and the previous element of arr1, except the first number in arr2 equals the first number in arr1. For example, 25 19 3 7 6... If arr1 has the elements: Then arr2 will be: Please display the two arrays. 2 7 6 10 12 10 13...
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The answer is (the output differ because we use random number)
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- Create a 4x3 array of letters from a through l and call it array1. Copy the array and call it array2, then reshape array2 to a 6x2 array. Create another copy of the array, called array3, and flatten it into a one-dimensional array. Print all three arrays.JAVA Your teacher has created two arrays, each holding the results of tests, say Test 1 and Test 2. You need to create a new array which holds the averages of these two tests. You may assume that the first element of the first test array refers to the student who also has the grade in the first element of the second test, and the last element in each array are the grades the last student earned for each test. All students received grades for both tests, meaning both test arrays are of the same length. Complete the method, named makeAverage, in the class named Grades.java. There are two parameters to this method: the first is the integer array representing the grades of the first test, and the second is the array containing the grades of the second test. The new average array should be returned by the method. The grades should be treated as double variables. For example, consider the test grades for the five students in the following arrays: [ 87 ] [ 91 ] [ 76 ] [ 76 ] [ 94 ]…D. The method construct will receive four parameters: an integer k, and three arrays called old1, old2, and sumarr. The method will construct the first k elements of the sumarr array fromt the first k elements of the oldi and old2 arrays, as follows. Each element of sumarr will be equal to the sum of the corresponding elements of gldi and gld2. For example, sumarri0] will be old1[0]+old2[0], sumarr[1] will be old1[1] + old2[1] and so on. (You are using parallel arrays.) Write a complete Java program to do the following: the main program will call a series of methods to process a set of data. One method will read data into two arrays. A second method will print the values stored in an array. A third method will find the smallest of the values stored in an array. A fourth method will construct a new array from two existing arrays. A fifth method will compare the values in the two arrays. Use files for both input and output. Be sure to pass the file variable to any method that will need…
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- Sales.java contains a Java program that prompts for and reads in the sales for each of 5 salespeople in a company. Now modify the program as follows: Declare an array called sales to save the sales of 5 salespeople. Complete the header of the first for loop. This loop initializes the array. Complete the header of the second for loop. This loop computes the total of array elements. Add code to compute and print the average sale. Add another loop to print the id of each salesperson and the number of their sales. The salespeople are objecting to having an id of 0—no one wants that designation. Modify your program so that the IDs run from 1-5 instead of 0-4. // *************************************************************** // Sales.java // // Reads in and stores sales for each of 5 salespeople. Displays // sales entered by salesperson id and total sales for all salespeople. // // *************************************************************** import java.util.Scanner;…D. The method construct will receive four parameters: an integer k and three arrays called old1, old2, and sumarr. The method will construct the first k elements of the sumarr array fromt the first k elements of the oldi and old2 arrays, as follows. Each element of sumarr will be equal to the sum of the corresponding elements of gldi and gld2. For example, sumarri0] will be old1[0]+old2[0], sumarr[1] will be old1[1] + old2[1] and so on. (You are using parallel arrays.) Write a complete Java program to do the following: the main program will call a series of methods to process a set of data. One method will read data into two arrays. A second method will print the values stored in an array. A third method will find the smallest of the values stored in an array. A fourth method will construct a new array from two existing arrays. A fifth method will compare the values in the two arrays. Use files for both input and output. Be sure to pass the file variable to any method that will need…For an array declartion of int number [25];, what will be the ending index? 0 1 24 25
- Declare an array to hold the tax for up to 10 different sales.Assignment A scientist has developed a mathematical model for a physical process, and he wants to check how good is model is. To evaluate the correctness of his model, he wants to test the results of his model under certain parameters and compare them with experimental results. Write a program that first reads the number of tests (testCount) as an int followed by the results of each test according to the model as a double array (testModel) and finally the results of each test according to experiments as a double array (testExperiment). Then, the program should calculate the error of the model by evaluating the average of the absolute values (i.e., mutlak değer) of the differences between the model result and experimental result (see formula below) using a function. ItestModel,- textExperiment, testCount NOTE: Individual absolute value of the difference between the model value and the experiment value calculations MUST be done in the function. Every other functionality MUST be done in…A minimax or saddle point in a two-dimensional array is an element that is the minimum of its row and the maximum of its column, or vice verse. For example, in the following array11 22 33 33 99 55 66 77 77 44 99 22the element 33 is a minimax because it is the maximum of row 0 and the minimum of column 2. The element 55 is another minimax because it is the minimum of row 1 and the maximum of column 1.Write a program that reads a 4-by-3 matrix, and then prints the location and value of each minimax in the matrix. For example, it would printa[0][2] = 33 is a minimax a[1][1] = 55 is a minimaxfor the matrix shown above.