java递归99乘法表练习题

下面是一个使用递归方法打印九九乘法表的Java代码：

public class JavaBasic07 {
    public static void printMultiplicationTable(int num) {
        if(num == 1) {
            System.out.println("1 * 1 = 1");
            return;
        }
        printMultiplicationTable(num - 1);
        for(int i = 1; i <= num; i++) {
            System.out.println(num + " * " + i + " = " + (num * i));
        }
        System.out.println();
    }

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.print("请输入一个整数：");
        int num = input.nextInt();
        printMultiplicationTable(num);
        input.close();
    }
}