要通过用户输入执行此操作：
public static void getPow(){ Scanner sc = new Scanner(System.in); System.out.println("Enter first integer: "); // 3 int first = sc.nextInt(); System.out.println("Enter second integer: "); // 2 int second = sc.nextInt(); System.out.println(first + " to the power of " + second + " is " + (int) Math.pow(first, second)); // outputs 9
