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

最后打印里末尾的" "可以换成"\t",  能实现对齐空格