• 12. Complete the following code to make a copy of the first half of an array of strings. CopyHalf.java 1 public class CopyHalf 2 { 3 /** Copies the first half of an array. If the length is odd, don't copy the middle value. @param values an array @return a copy of the first half of values */ public static ... copyHalf (String[] values) { 10 11 12 13 } CodeCheck Reset
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- Ld////. Two-Dimensional ArrayInstruction:Create a java program that generates elements (randomly from 10 – 75) of a 2-dimensional array (5x5) using the Random Class then perform the following:1) Output the array elements2) Output the sum of prime numbers in the array3) Output the elements in the main diagonal.4) Output the sum of the elements below the diagonal.5) Output the sum of the elements above the diagonal.6) Output the odd numbers below the diagonal.7) Output the even numbers above the diagonal. NOTE: Please do not use the array methods available on the internet. Use the for loop, while loop or do-while loop statement in your codes.,*please help in java* Array testGrades contains NUM_VALS test scores. Write a for loop that sets sumExtra to the total extra credit received. Full credit is 100, so anything over 100 is extra credit. Ex: If testGrades = {101, 83, 107, 90}, then sumExtra = 8, because 1 + 0 + 7 + 0 is 8. import java.util.Scanner; public class SumOfExcess {public static void main (String [] args) {Scanner scnr = new Scanner(System.in);final int NUM_VALS = 4;int[] testGrades = new int[NUM_VALS];int i;int sumExtra = -9999; // Assign sumExtra with 0 before your for loop for (i = 0; i < testGrades.length; ++i) {testGrades[i] = scnr.nextInt();} // your answer goes here// System.out.println("sumExtra: " + sumExtra);}}TASK 1 Write a Java method that returns the index of the smallest element in an array of integers. If the number of such elements is greater than 1, return the smallest index. Use the following header: public static int indexofLargestlestelement(double[] array) Write a test program that prompts the user to enter ten numbers, invokes this method to return the index of the smallest element, and displays the index.
- 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)JAVA PLEASE FAAST Write a java method that receives a string containing letters of the English alphabet and then prints the Letters whose frequencies are not unique. Notes: 1) Ignore letter case; Uppercase and lowercase letters are considered the same. 2) Do not use methods from the Arrays class.Enhanced selection sort algorithm SelectionSortDemo.java package chapter7; /** This program demonstrates the selectionSort method in the ArrayTools class. */ public class SelectionSortDemo { public static void main(String[] arg) { int[] values = {5, 7, 2, 8, 9, 1}; // Display the unsorted array. System.out.println("The unsorted values are:"); for (int i = 0; i < values.length; i++) System.out.print(values[i] + " "); System.out.println(); // Sort the array. selectionSort(values); // Display the sorted array. System.out.println("The sorted values are:"); for (int i = 0; i < values.length; i++) System.out.print(values[i] + " "); System.out.println(); } /** The selectionSort method performs a selection sort on an int array. The array is sorted in ascending order. @param array The array to sort. */ public static void selectionSort(int[] array) { int startScan, index, minIndex, minValue; for (startScan = 0; startScan < (array.length-1); startScan++) { minIndex = startScan; minValue…
- Write an application that stores the following nine integers in an array: 10, 15, 19, 23, 26, 29, 31, 34, 38. Display the integers from first to last, and then display the integers from last to first. public class NineInts { public static void main (String args[]) { // Write your code here } }public class TestStudents { public static void main(String[] args) { //2.2 Code given to you. Just use them. //create an array of Student objects. Student[] cisDept = new Student[4]; //Create and add 4 students, two undergraduates, two master students // add these students to the array //They are commented since you haven't added your code to Undergraduate, MasterStudent /* String[] theisCommittee = {"Tom", "Richard", "Gene"}; cisDept[0] = new MasterStudent("222", "Steve", "Jobs", "IST", "MS", 3.5, "How to make ipad smarter", "Jamie", theisCommittee); cisDept[1] = new Undergraduate("444", "Bill", "Gates", "CS", "BS", 3.0, "Erin", "Sally"); String[] theisCommittee2 = {"Jie", "Zoran", "Gene"}; cisDept[2] = new MasterStudent("333", "Amy", "Jobs", "CS", "MS", 3.8, "Study of Robots That can Perform", "Eduard",…public class ArrayCommonOperations{ public static void main(String [] args) { //*** Task #1: Define and instantiate an array of integer numbers, with 10 elements //*** Task #2: Fill in the array with integer numbers from 1 to 100 //*** Task #3: define another array, named temp, and copy the initial array in it. //* This allows to preserve the original array //*** Task #4: Define the variables you need to calculate the following values, //* and initialize them with appropriate values. //*** Task #5: Print the original array //*** Task #6: Calculate the sum of all values //*** Task #7: Count the number of even values //*** Task #8: Calculate the minimum value in the array //*** Task #9: Calculate the maximum value in the array //*** Task #10: Replace the elements that are divisible by 3, with their value plus 2 //*** Task #11:…
- TASK 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)Method Details getCountInRange public static int getCountInRange(int[] array, int lower, int upper) Returns the number of values in the range defined by lower (inclusive) and upper (inclusive) Parameters: array - integer array lower - lower limit upper - upper limit Returns: Number of values found Throws: java.lang.IllegalArgumentException - if array is null or lower is greater than upper Any error message is fine (e.g., "Invalid parameters(s)")واجب جافا 1.pdf Introduction to Programming Lab Homework 1 1. Use method overriding to write two methods called printArray. On should take an int array and the other should take a double array. Both should print the array they are given as an argument. Sample code int [] x = {9, 3, 5, 1, 5, 10}; int [] y = {26.12, 72.1, 10, 4.20}; Sample output 93515 10 26.12 72.1 10.0 4.2 2. write two method called findindex and findLastIndex that search for a number in an array. they should take an int array and an int as parameters. findIndex should return the index of the first instance of the number in the array. findLastIndex should return the index of the last instance of the number in the array. They both should return -1 if the number is not found. Do not use any library methods. Sample code int a[] = {10,50,30,40,50}; int x = findIndex(a,50); System.out.println (x); Sample output 1 int a[] = {10,50,30,40,50}; int x = findLastIndex (a,50); System.out.println(x); int a[] = {10,50,30,40,50}; int…