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@ -2,6 +2,17 @@ import java.util.Arrays; |
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public class ArrayManipulation { |
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public static int[] removeLast(int[] arr) { |
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if (arr == null || arr.length < 1) { |
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return arr; |
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} |
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int[] result = new int[arr.length-1]; |
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for (int i = 0; i < result.length; i++) { |
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result[i] = arr[i]; |
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} |
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return result; |
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} |
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public static int[] reverseArray(int[] arr) { |
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@ -11,7 +22,6 @@ public class ArrayManipulation { |
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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[] removeFirst(int[] arr) { |
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@ -30,5 +40,6 @@ public class ArrayManipulation { |
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int[] arr = {1,2,3,4,5}; |
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System.out.println(Arrays.toString(reverseArray(arr))); |
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System.out.println(Arrays.toString(removeFirst(arr))); |
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System.out.println(Arrays.toString(removeLast(arr))); |
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} |
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} |