Integer numLengths is read from input. Then, numLengths integers are read from input and inserted at the end of lengthList. If an element is at an even index in lengthList, negate the element. Ex: If the input is: 2 49 33 then the output is: -49 33 Note: Index i is even if i % 2 == 0.
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- Integer numSize is read from input. ArrayList colorsList contains numSize strings read from input. Complete the enhanced for loop to output each value in colorsList. Ex: If the input is: 5 blue red violet green orange then the output is: blue is available red is available violet is available green is available orange is available import java.util.Scanner;import java.util.ArrayList; public class Colors { public static void main(String[] args) { Scanner scnr = new Scanner(System.in); ArrayList<String> colorsList = new ArrayList<String>(); int numSize; int i; numSize = scnr.nextInt(); for (i = 0; i < numSize; ++i) { colorsList.add(scnr.next()); } for (/* Your code goes here */) { System.out.println(colorVal + " is available"); } }} java pleaseIf N represents the number of elements in the collection, then the contains method of the ArrayCollection class is O(1). True or False If N represents the number of elements in the list, then the index-based add method of the ABList class is O(N). True or FalseStoring an ArrayList Create a Java program that will store 10 student objects in an ArrayList, ArrayList<Student>. A student object consists of the following fields: int rollno String name String address Implement two comparator classes to sort student objects by name and by rollno (roll number). Implement your own selection sort method and place your code in a separate Java source file. Do not use a sort method from the Java collections library. ***Code from previous question does not work***
- Storing an ArrayList Create a Java program that will store 10 student objects in an ArrayList, ArrayList<Student>. A student object consists of the following fields: int rollno String name String address Implement two comparator classes to sort student objects by name and by rollno (roll number). Implement your own selection sort method and place your code in a separate Java source file. Do not use a sort method from the Java collections library.import java.util.ArrayList;import java.util.Arrays; public class PS07A{/*** Write the method named mesh.* * Start with two ArrayLists of String, A and B, each with * its elements in alphabetical order and without any duplicates. * Return a new list containing the first N elements from the two * lists. The result list should be in alphabetical order and without * duplicates. A and B will both have a size which is N or more. * Your solution should make a single pass over A and B, taking * advantage of the fact that they are in alphabetical order, * copying elements directly to the new list.* * Remember, to see if one String is "greater than" or "less than" * another, you need to use the compareTo() method, not the < or > * operators. * * Examples:* mesh(["a","c","z"], ["b","f","z"], 3) returns ["a","b","c"]* mesh(["a","c","z"], ["c","f","z"], 3) returns ["a","c","f"]* mesh(["f","g","z"], ["c","f","g"], 3) returns ["c","f","g"]* * @param a an ArrayList of String in alphabetical…import java.util.ArrayList;import java.util.Arrays;public class PS{/*** Write the method named mesh.** Start with two ArrayLists of String, A and B, each with* its elements in alphabetical order and without any duplicates.* Return a new list containing the first N elements from the two* lists. The result list should be in alphabetical order and without* duplicates. A and B will both have a size which is N or more.* Your solution should make a single pass over A and B, taking* advantage of the fact that they are in alphabetical order,* copying elements directly to the new list.** Remember, to see if one String is "greater than" or "less than"* another, you need to use the compareTo() method, not the < or >* operators.** Examples:* mesh(["a","c","z"], ["b","f","z"], 3) returns ["a","b","c"]* mesh(["a","c","z"], ["c","f","z"], 3) returns ["a","c","f"]* mesh(["f","g","z"], ["c","f","g"], 3) returns ["c","f","g"]** @param a an ArrayList of String in alphabetical order.* @param b an…
- This is needed in Java Given that an ArrayList of Strings named nameList has already been created and names have already been inserted, write the statement necessary to delete the name at index 15.Project Description: In this project you implement an ArrayStack ADT and use the stack for implementing the following methods: a) Reverse an array of Words: Accept an array of words as input parameter and return an array of words in reverse order. Use the method signature: public static String[] reverseWords (String[] wordList) Example Input: Bird Cat Dog Elephant Output: Elephant Dog Cat BirdFind the index of the first negative numberIntegerListUtils.java import java.util.ArrayList; public class IntegerListUtils { /** * Finds the index of the first negative number in the list. * * @param numbers a list of integers * @return the index of the first negative number, or -1 if no negative number found */ public static int findIndexOfFirstNegative(ArrayList<Integer> numbers) { // complete this method }}
- import random; #importing random module aGrades=[]; #list to store grades of all tests for i in range(0,7):aGrades.append(random.randrange(0,100)); #generating 7 random values for testsexamCount=len(aGrades)-1; #examCount is a variable to store count of all exams except last exam totalPoints=sum(aGrades)-aGrades[len(aGrades)-1]; #totalPoints is a variable to store sum of all scores excluding last exam testAverage=(totalPoints)/examCount; #testAverage is a variable used to store the average of scores except last exam finalAverage= (testAverage*0.6)+(aGrades[len(aGrades)-1]*0.4); #finalAverage is a variable to store weighted average of the tests print(aGrades); #printing list of gradesprint(testAverage); #printing test averageprint(finalAverage); #printing final average How do i rewrite the Grades List programs above using a loop instead of referencing the elements of the lists by index.Integer numValues is read from input. Then numValues integers are read and stored in vector numbersList. Write a loop that adds 1 to each element in numbersList that is divisible by 5. Ex: If the input is 3 25 69 41, then the output is: Original numbers: 25 69 41 Nearest numbers not divisible by 5: 26 69 41 1 #include 2 #include 3 using namespace std; 4 5 6 7 8 9 10 11 12 13 14 15 16 17 int main() { int numValues; unsigned int i; vector numbers List; cin >> numValues; numbersList.resize(numValues); for (i = 0; i > numbers List.at(i); } 2in java language Write a program in which you create an object of type ArrayList named BZ and then add 3 elements in this object and then copy the elements of the object in another object QZ and then cancel the elements of the object BZ and then write the necessary print statements to show it?