翻转数组

public class example {
	public static void main(String[] args) {
		int arr[] = { 1, 2, 3, 4, 5, 6 };
		int temp = 0;
		int len = arr.length;
		for (int i = 0; i < len / 2; i++) {
			temp = arr[len - 1 - i];
			arr[len - 1 - i] = arr[i];
			arr[i] = temp;
		}
		for (int i = 0; i < arr.length; i++) {
			System.out.println(arr[i]);
		}

	}
}

方法二

逆序赋值

 public class example {
	public static void main(String[] args) {
		int arr[] = { 1, 2, 3, 4, 5, 6 };
		int arr2[] = new int[arr.length];
		for (int i = arr.length - 1, j = 0; i >= 0; i--, j++) {
			arr2[j] = arr[i];
		}
		arr = arr2;
		for (int i = 0; i < arr.length; i++) {
			System.out.println(arr[i]);
		}
	}
}