You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
|
import java.util.Arrays;
public class ArrayManipulation {
public static int[] reverseArray(int[] arr) {
for (int i = 0; i < arr.length/2; i++) { int tmp = arr[i]; arr[i] = arr[arr.length - 1 - i]; arr[arr.length - 1 - i] = tmp; } return arr; }
public static int[] removeFirst(int[] arr) { //temp array erstellen, mit einer stelle weniger
int[] temp = new int[arr.length - 1]; //Zahlen Rüberkopieren, bis auf die erste
for (int i = 1, k = 0; i < arr.length; i++) { temp[k++] = arr[i]; } return temp; }
public static int[] removeLast(int[] arr) { //temp array erstellen, mit einer stelle weniger
int[] temp = new int[arr.length - 1]; //Zahlen Rüberkopieren, bis auf das letzte
for (int i = 0, k = 0; i < temp.length; i++) { temp[k++] = arr[i]; } return temp; }
public static int[] squareEach(int[] arr) { for (int i = 0; i < arr.length; i++) { int tmp = arr[i]; arr[i] = tmp*tmp; } return arr; } public static void main(String[] args) { int[] arr = {1,2,3,4,5}; System.out.println(Arrays.toString(arr)); System.out.println(Arrays.toString(reverseArray(arr))); System.out.println(Arrays.toString(squareEach(arr))); System.out.println(Arrays.toString(removeFirst(arr))); System.out.println(Arrays.toString(removeLast(arr))); } }
|