Java数组删除元素

public class Test {
  public static void main(String[] args) {
    int[] arr = {1, 2, 3, 4, 5};
    int[] arrNew = new int[arr.length-1];
    for (int i = 0; i < arrNew.length; i++) {
      arrNew[i] = arr[i];
    }
    arr = arrNew;
    for (int i = 0; i < arr.length; i++) {
      System.out.println(arr[i]);
    }
  }
}