Write a class ArrayMethods, where the main method asks the user to enter the number of inputs and stores them in an array called myList. Create a method printArray that prints the array myList. Create another method copyArray that copies the array using System.arraycopy, and multiplies each element in the copied array by 2, then finally returns the array to the main method. Invoke the printArray again to print the array returned by copyArray.

Write a class ArrayMethods, where the main method asks the user to enter the number of inputs and stores them in an array called myList. Create a method printArray that prints the array myList. Create another method copyArray that copies the array using System.arraycopy, and multiplies each element in the copied array by 2, then finally returns the array to the main method. Invoke the printArray again to print the array returned by copyArray.

Programming Logic & Design Comprehensive

9th Edition

ISBN:9781337669405

Author:FARRELL

Publisher:FARRELL

Chapter9: Advanced Modularization Techniques

Section: Chapter Questions

Problem 2GZ

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Write a class ArrayMethods, where the main method asks the user to enter the number of inputs and stores them in an array called myList. Create a method printArray that prints the array myList. Create another method copy Array that copies the array using System.arraycopy, and multiplies each element in the copied array by 2, then finally returns the array to the main method. Invoke the printArray again to print the array returned by copyArray. Sample RunEnter the number of items: 4Enter the numbers: 2 3 4 6Your printed array: 2 3 4 6Your copied printed array: 4 6 8 12
Write a class ArrayMethods, where the main method asks the user to enter thenumber of inputs and stores them in an array called myList. Create a methodprintArray that prints the array myList. Create another method copyArray that copiesthe array using System.arraycopy, and multiplies each element in the copied array by2, then finally returns the array to the main method. Invoke the printArray again toprint the array returned by copyArray. In summary, see below. (!5 points)• main method does: asks user for inputs and stores in array. Invoke printArray. Invoke copyArray.Invoke printArray again.• printArray: void method, parameters passed is an array, prints an array• copyArray: array-returning method, parameters passed is an array, copies array, multiplies 2 to eachelement in the copied array, returns the copied arraySample RunEnter the number of items: 4Enter the numbers: 2 3 4 6Your printed array: 2 3 4 6Your copied printed array: 4 6 8 122. Write a class ArrayClass, where the main…
2. Write a class ArrayClass, where the main method asks the user to enter the four num bers. Create a method printArray that prints the array whenever required (use Acrav.toString method). Make the program run as shown in the Sample Run below. Green is user input. Use Attax.sort, Attach.bianrySearch. Attaveauals Sample Run List1, Enter four num bers: 2 33 2 List2, Enter four num bers: 6 25 4 List3, Enter four num bers: 52 46 Your original Listi: [2, 3, 3, 2] Your original List2: [6, 2, 5, 4] Your original List3: [5, 2, 4, 6] Sorted Listi is: [2, 2, 3, 3] Enter a number from the sorted List1 to search for: 3 Value 3 is in index 2 (or position 3) List that are the same when sorted: [2, 4, 5, 6]
Write a class ArrayClass, where the main method asks the user to enter the four numbers. Create a method printArray that prints the array whenever required (use Array.toString method). Make the program run as shown in the Sample Run below. Use Array.sort, Arrach.bianrySearch, Array.equals
Write a java application which initializes an array with ten random integers between 1 and 6. Write two methods: 1. arraySwap: this method should accept an integer array and swap the first and the last item. 2. findMinimum: this method should accept the array and return the minimum value of that array You should comment and follow javaDoc for both methods. Your main method should test each of these methods.
Rename the show method to people Override the show method in student and in the other class you created (this will be the polymorphic method) In main program, create an array of 3 objects of class people Instantiate each array position with a different object (people, student, other) With a loop, display all the objects in the array.
Please create a class ArrayUtils in JAVA and write two static methods in it as described below: fillArray will accept an int array as a parameter. It will create a Scanner connected to System.in and then ask the user for values to add to the array, beginning at index 0, stopping when the user enters -999. Make sure that the -999 is not included in the array. The method will return the number of values put into the array. countMultiples will accept three parameters: an int array, an int representing the number of valid values in the array, and an int representing a factor. The method will count the number of valid values in the array that are multiples of the factor and will return the count. Note that the valid values are expected to be at the beginning of the array in indices 0 through number of value values – 1.
MostOftenOccurring. This class defines a method called occursMostOften(), which takes as its only parameter an array of int called a and returns an int representing the value which occurs most often in a. If there is a tie, display the value which occurs first in a among those that occur most often. Repeat the operation often
Create a java class called ArrayOperations. Add the static methods described below. Then write a test class to verify that all of your methods work. Static Methods for ArrayOperations The lcass name is ArrayOperations It has one static method called findSum. This method returns the sum of the elements in an array To invoke this method from another class, we use the class name (ArrayOperations.findSum(MyArray)); toString : This method signature should be: public static String toString(int[] anArray). It should return a String that consists of all elements in the array. For example if the input array consists of {1, 5, 9, 2}, then toString should return the string 1 5 9 2 findMaxMin : The signature for this method should be public static int[] findMaxMin(int[] anArray) Notice that the method returns an array of int – not a single value. In this method Write code to declare an array of int with two elements – say limits Find the largest element in the array and store it in limits[0]…
Write a class AnalyzeNumbers which asks the user to enter the number of inputs andstores them in an Array, then prints the Array that was inputted, calculates the sum ofthe numbers entered and prints the total numbers greater than the first inputtednumber: Two Sample RunsEnter the number of items: 5Enter the numbers: 3.4 5 6 7.1 9You inputted: 3.4 5.0 6.0 7.1 9.0Sum is: 30.5Number of elements greater than the first element: 4 Enter the number of items: 3Enter the numbers: 6.7 1.5 3.2You inputted: 6.7 1.5 3.2Sum is: 11.4Number of elements greater than the first element: 0
Write a program that includes in its MainClass the following methods: 1. A method called printArray that takes an array of integer values and a boolean value. The method prints the array elements on the same line with one space between each two elements. If the boolean value is true, the elements must be printed in their original order, if it is false they must be printed in reverse order. The method should print a new line after printing the array elements.
Image one is my file or you can create ur own file as long as it's similar to mine. image 2 is my program I want to write a 4th method(method 4) and the spec is: A method to count the occurrences of each value in an array takes one parameter, an array of integers returns an array containing the number of times each value occurs in the parameter array. Also should call method 3 from method 4Hint: The general idea of this method is using an array with length maxVal+1(maxVal should get from method 3 already) to save the occurrences of each number. For example, if number 44 occurs 3 times in the file, your array should have a value 3 stored at index 44.