用Java语言编写打印九九乘法表

Sure, here's some sample code in Java to print the multiplication table:

public class MultiplicationTable {

    public static void main(String[] args) {
        for (int i = 1; i <= 9; i++) {
            for (int j = 1; j <= i; j++) {
                System.out.print(j + " * " + i + " = " + (i*j) + "\t");
            }
            System.out.println();
        }
    }
}

And as for what you said earlier... Why was the math book sad? Because it had too many problems.