|
@ -1,48 +0,0 @@ |
|
|
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) { |
|
|
|
|
|
|
|
|
|
|
|
int length = arr.length; |
|
|
|
|
|
int[] result = new int[length - 1]; |
|
|
|
|
|
|
|
|
|
|
|
for (int i = 1; i < arr.length; i++) { |
|
|
|
|
|
result[i-1] = arr[i]; |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
return result; |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
public static int [] removeLast(int[] arr) { |
|
|
|
|
|
int [] result = new int [arr.length-1]; |
|
|
|
|
|
|
|
|
|
|
|
for (int i =0; i<arr.length-1; i++) { |
|
|
|
|
|
result[i] = arr[i]; |
|
|
|
|
|
} |
|
|
|
|
|
return result; |
|
|
|
|
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
public static void main(String[] args) { |
|
|
|
|
|
|
|
|
|
|
|
int[] arr = {1,2,3,4,5}; |
|
|
|
|
|
System.out.println(Arrays.toString(reverseArray(arr))); |
|
|
|
|
|
System.out.println(Arrays.toString(removeFirst(arr))); |
|
|
|
|
|
System.out.println(Arrays.toString(removeLast(arr))); |
|
|
|
|
|
|
|
|
|
|
|
} |
|
|
|
|
|
} |
|
|
|