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