HA1/ArrayManipulation.java

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[] result = new int[arr.length - 1];
            
            for (int i = 0; i < arr.length; i++) {
                
                if (i == 0){continue;}
                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; i++) {
            
            if (i == arr.length){continue;}
            result[i - 1] = 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)));
    }



}