按课程代码输入后，显示Unhandled exception type IOException怎么办
void prints2(JspWriter out) throws Exception
{
for(int m =1;m<=9;m++)
{
for(int n=m;n<=9;n++)
{
out.println(m+"X"+n+"="+(m*n));
}
out.println2("<br>");
}
}
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void prints2(JspWriter out) throws Exception
{
for(int m =1;m<=9;m++)
{
for(int n=m;n<=9;n++)
{
out.println(m+"X"+n+"="+(m*n));
}
out.println2("<br>");
}
}
2016-01-31
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