如何在Java中使用hasNextInt检查输入的值是否为整数？

import java.util.Scanner;

public class CheckIntegerInput {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.print("请输入一个整数：");
        if (scanner.hasNextInt()) {
            int num = scanner.nextInt();
            System.out.println("输入的值是整数：" + num);
        } else {
            String input = scanner.next();
            System.out.println("输入的值不是整数：" + input);
        }

        scanner.close();
    }
}