|
|
@ -0,0 +1,34 @@ |
|
|
|
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[] removeLast(int[] arr){ |
|
|
|
int arr2[]; |
|
|
|
if(arr.length<=1) return arr2 = new int[0]; //Falls Array nur eine oder weniger Elemente hat,leeres Array zurückgeben |
|
|
|
arr2 = new int[arr.length-1]; //Sonst neues Array mit einem Element weniger erstellen |
|
|
|
for(int i=0; i<arr.length-1; i++){ |
|
|
|
arr2[i]=arr[i]; //Kopieren der Elemente des Original Array |
|
|
|
} |
|
|
|
return arr2; //Neues Array zurückgeben |
|
|
|
} |
|
|
|
|
|
|
|
public static void main(String[] args) { |
|
|
|
|
|
|
|
int[] arr = {1,2,3,4,5}; |
|
|
|
System.out.println(Arrays.toString(removeLast(arr))); |
|
|
|
System.out.println(Arrays.toString(reverseArray(arr))); |
|
|
|
|
|
|
|
} |
|
|
|
} |