很简单：
class a
{
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+"="+j*i);
System.out.print(" ");
}
System.out.println("");
}
}
}
class a
{
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+"="+j*i);
System.out.print(" ");
}
System.out.println("");
}
}
}
for(int j = 1;j <= i;j++)
if(j == i)
System.out.println(j + "*" + i + "=" + j*i);
else
System.out.print(j + "*" + i + "=" + j*i + " ");