Finish the method findMin so that it finds and returns the minimum value in the array. Save & Run Load History Show CodeLens Share Code 1 public class Test1 2 { 4 public static int findMin(int[] arr) { } 7 public static void main(String[] args) { 10 int[] arr = {20, -3, 18, 55, 4}; 11 System.out.println(findMin(arr)); 12 13 } 14
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- import java.util.Scanner; public class ModifyArray { public swapArrayEnds(10, 20, 30, 40) { for (i = 0; i < (arrVals.length / 2); ++i) { tempValue = arrVals[i]; // Do swap //*please fix code// arrVals[i] = arrVals[arrVals.length - 1 - i]; arrVals[arrVals.length - 1 - i] = tempValue; Write a method swapArrayEnds() that swaps the first and last elements of its array parameter. Ex: sortArray = {10, 20, 30, 40} becomes {40, 20, 30, 10}. public static void main (String [] args) { Scanner scnr = new Scanner(System.in); int numElem = 4; int[] sortArray = new int[numElem]; int i; int userNum; for (i = 0; i < sortArray.length; ++i) { sortArray[i] = scnr.nextInt(); } swapArrayEnds(sortArray); for (i = 0; i < sortArray.length; ++i) { System.out.print(sortArray[i]); System.out.print(" "); } System.out.println(""); }}Given an array of numbers, and an integer, find the last index that that integer appears in the array. If the number is not found, return -1. import java.util.ArrayList;public class LastIndexFound{public static int solution(ArrayList<Integer> nums, int numToFind){// ↓↓↓↓ your code goes here ↓↓↓↓return 0;}}java getDup accepts an array and returns an int. If there is any element is duplicated, the method counts how many of those present in the array. Example : getDup(["1","2","aa"',"1"]) returns:2 ("1" is duplicated and there are two "1"s so return is 2) class Main { public static int getDup(String[] r) { } public static void main(String[] args) { Scanner in = new Scanner(System.in); String [] strs = new String[in.nextInt()]; for(int i=0; i < strs.length; i++) { strs[i] = in.next(); } System.out.println(getDup(strs)); } } hint: you will need a nested array the will run on the array we get from the method argument. inside the nested loop you will need to check if the main array element is equal to the current
- Fix the following method printEvenIndex so that it will print out the Integers at even indices of the passed-in ArrayList list. import java.util.*; public class Test1 { public static void printEvenIndex(ArrayList<Integer> list) { for (int i) { if (i % 2 == 1) { System.out.print(list.get(i) + ", "); } } } public static void main(String[] args) { //instantiate ArrayList and fill with Integers ArrayList<Integer> values = new ArrayList<Integer>(); int[] nums = {1, 5, 7, 9, -2, 3, 2}; for (int i = 0; i < nums.length; i ++) { values.add(nums[i]); } System.out.println("Expected Result:\t 1, 7, -2, 2,"); System.out.print("Your Result:\t\t "); printEvenIndex(values); } }JavaTimer.java: import java.util.Arrays;import java.util.Random; public class JavaTimer { // Please expand method main() to meet the requirements.// You have the following sorting methods available:// insertionSort(int[] a);// selectionSort(int[] a);// mergeSort(int[] a);// quickSort(int[] a);// The array will be in sorted order after the routines are called!// Be sure to re-randomize the array after each sort.public static void main(String[] args) {// Create and initialize arraysint[] a = {1, 3, 5}, b, c, d;// Check the time to sort array along startTime = System.nanoTime();quickSort(a);long endTime = System.nanoTime();long duration = (endTime - startTime) / 1000l;// Output resultsSystem.out.println("Working on an array of length " + a.length + ".");System.out.println("Quick sort: " + duration + "us.");}// Thanks to https://www.javatpoint.com/insertion-sort-in-javapublic static void insertionSort(int array[]) {int n = array.length;for (int j = 1; j < n; j++) {int key = array[j];int…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 quick sort create a method to test that your quicksort( int [ ] a ), insertion sort and removeDuplicates( int [ ] methods work sufficiently. the code is below and it needs a method to test it public class QuicksortTester { public static void quicksort(Comparable[] a) { quicksort(a, 0, a.length - 1); } static void quicksort(Comparable[] a, int low, int high) { int CUTOFF = 10; if (low + CUTOFF > high) insertionSort(a, low, high); else { int middle = (low + high) / 2; if (a[middle].compareTo(a[low]) < 0) swapReferences(a, low, middle); if (a[high].compareTo(a[low]) < 0) swapReferences(a, low, high); if (a[high].compareTo(a[middle]) < 0) swapReferences(a, middle, high); swapReferences(a, middle, high - 1); Comparable pivot = a[high - 1]; int i, j; for (i = low, j = high - 1;;) { while (a[++i].compareTo(pivot) < 0) ; while (pivot.compareTo(a[--j]) < 0)…Problem (class MergeSalary)First, write a Java method merge that takes as parameter a non-empty double array representingemployees’ salaries. The method merges the values of every 2 adjacent elements. put themerged values at the beginning of the array, and put 0 in the remaining positions. Suppose thatthe original array will contain an even number of elements.Second, write two java methods readArray(int[]a) and printArray(int[]a) thatreads/writes the elements of an array passed in parameter from/to the standard input/output.Finally, Use the following main method to test your different methods:public class MergeSalary{ private static Scanner input = new Scanner(System.in); public static void main(String[] args) { double[] salaries = new double[10]; System.out.print("Enter 10 salaries: "); readArray(salaries); merge(salaries); System.out.print("Salaries after merge: "); printArray(salaries); }}Modify the unsortedArrayAccess class by adding a method that find the smallest element and average in the array. import java.util.*; public class unsortedArrayAccess{ public static double[] arr; public int arraySize; public unsortedArrayAccess(int scale) { arr = new double[scale]; arraySize = 0; } public int search(double Key) { int i = 0; while ((i < arraySize) && (arr[i] != Key) ) { i = i + 1; } if (i < arraySize) { return i; } else { System.out.println("There is no such item!"); return -1; } } public void append(double Item) { arr[arraySize] = Item; arraySize = arraySize + 1; } public double remove() { if (arraySize == 0) { System.out.println("There is no item in the array!"); return -1; } double x = arr[arraySize - 1]; arraySize = arraySize - 1; return x; } public void deletion(double Key) { int k = search(Key); if (k != -1) { for (int i = k; i…
- code: import java.util.Random;import java.util.ArrayList;import java.util.Scanner;public class WeekendOrders {/*** * This method takes as input the scanner instance created from main and* asks the user for input on the number of orders placed on each of the * days on the long weekend (Saturday, Sunday, and Monday). * Put the number of orders for each day in an array of fixed size* * * @param scnr (an instance of Scanner)* @return an array of int which includes the number of orders* placed on each day, with one day per index of the array*/public static int[] getUserInput(Scanner scnr){// DO NOT MODIFY THIS LINEint[] userInput = new int[3];// TODO: Prompt user for input on number of orders on each day// and store in userInputreturn userInput; }/*** * This method appends all the new orders for the given day onto the * arraylist. It first generates a random int between 0-2 (inclusive).* If the int is 0: it adds "Burger" to the prevOrders list* If the int is 1: it adds "Fries" to the…JavaTimer.java: import java.util.Arrays;import java.util.Random; public class JavaTimer { // Please expand method main() to meet the requirements. // You have the following sorting methods available: // insertionSort(int[] a); // selectionSort(int[] a); // mergeSort(int[] a); // quickSort(int[] a); // The array will be in sorted order after the routines are called! // Be sure to re-randomize the array after each sort. public static void main(String[] args) { // Create and initialize arrays int[] a = {1, 3, 5}, b, c, d; // Check the time to sort array a long startTime = System.nanoTime(); quickSort(a); long endTime = System.nanoTime(); long duration = (endTime - startTime) / 1000l; // Output results System.out.println("Working on an array of length " + a.length + "."); System.out.println("Quick sort: " + duration + "us."); }…Here is the code I have done so far. I keep getting Java null point exception for makeMovielist code: import java.util.ArrayList;import java.util.Arrays;public class MovieList {/*** This method will take the name of a movie and delete it* in the movies if exists and* delete its corresponding year in years** @param name movie name to delete* @param movies List of all movies' name* @param years List of corresponding years*/public static void deleteMovieByName(String name, ArrayList<String> movies,ArrayList<Integer> years) {if(name==null || movies == null || years == null)return;for(int i=0; i<movies.size(); i++){if(movies.get(i).equals(name)){movies.remove(i);years.remove(i);}}}/*** This method will delete all movies with specific year* in the movie list and year list** @param year the given year* @param movies List of all movies' name* @param years List of corresponding years*/public static void deleteMoviesByYear(int year, ArrayList<String>…