How to fill an array of elements from the keyboard?

Question

Dan array. Determine the number of maximum elements in the array

The first line sets the number of elements in the array (no more than 100)

The second line introduces the elements of the array.

I know how to find the maximum value in an array with random numbers, but how to push elements from the keyboard into the array (as in a task) if they are written in a space separated string And then how to work with them?

@LEQADA how many times the maximum element occurs in the array
@LEQADA how to enter elements is understandable, but how to push them into an array?

Accepted Answer · 2015-10-16T17:29:02

I will answer the question "How to fill an array of elements entered from the keyboard." For this we need a Scanner .

 public static void main(String[] args) { Scanner input = new Scanner(System.in); // Объявляем Scanner System.out.println("Enter array length: "); int size = input.nextInt(); // Читаем с клавиатуры размер массива и записываем в size int array[] = new int[size]; // Создаём массив int размером в size System.out.println("Insert array elements:"); /*Пройдёмся по всему массиву, заполняя его*/ for (int i = 0; i < size; i++) { array[i] = input.nextInt(); // Заполняем массив элементами, введёнными с клавиатуры } System.out.print ("Inserted array elements:"); for (int i = 0; i < size; i++) { System.out.print (" " + array[i]); // Выводим на экран, полученный массив } System.out.println(); }

And then work with the array in the same way as you used to work with an array filled with random numbers.

Nicolas Chabanovsky ♦ 38.1k 54 gold marks 222 silver marks 438 bronze marks · Answer 2 · 2016-03-17T15:11:10

So, it seems prettier!?

 public static void main(String[] agrs) { int[] a = new int[7]; int i = 0; Scanner in = new Scanner(System.in); for (int element : a) { System.out.print("Введите " + (i + 1) + "-й элемент массива: "); a[i] = in.nextInt(); System.out.println(a[i] + " - "); i++; } for (int element : a) System.out.print(element + " "); }

Or so:

 public static void main(String[] agrs) { int[] a = new int[7]; int i = 0; Scanner in = new Scanner(System.in); for (int element : a) { System.out.print("Введите " + (i + 1) + "-й элемент массива: "); a[i] = in.nextInt(); System.out.println(a[i] + " - "); i++; } System.out.println(Arrays.toString(a)); }

You simply set the elements in the array from the keyboard without further action.
@ Igrr you declare an array [7] , and you need an array of length specified by the number from the first line.
In general, yes, I didn’t read the question very well, the difficulty was to enter the elements of the array from the keyboard)

Egor randomize 681 3 silver marks 18 bronze marks · Answer 3 · 2018-02-25T10:23:33

 import java.util.Scanner; public class PerBor_Mas { public static void main(String[] args) throws InterruptedException { int n = vvod.nextInt(); int[] A = new int[n]; int k = vvod.nextInt(); Scanner vvod = new Scanner(System.in); System.out.println("Введите длину одномерного массива"); System.out.println("Введите первый элемент массива"); System.out.println("Водится массив"); for (int i = 0; i < n; i++) { System.out.print(A[i] + k + "\t"); k++; } System.out.println(" "); } }

Entering a one-dimensional array from the keyboard. - TaraBar Barb

How to fill an array of elements from the keyboard?

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