computerfactorandprimnumber.java
来自「这套JSP学习资料」· Java 代码 · 共 51 行
JAVA
51 行
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class ComputerFactorandPrimNumber extends HttpServlet
{
public void init(ServletConfig config) throws ServletException
{
super.init(config);
}
public void doPost(HttpServletRequest request,HttpServletResponse response) throws IOException,ServletException
{
PrintWriter out=response.getWriter();
response.setContentType("text/html;charset=GB2312");
out.println("<HTML><BODY>");
String number=request.getParameter("number");
double n=0;
try
{
n=Double.parseDouble(number);
out.println("<H1>factors of "+n+":</H1>");
for(int i=1;i<=n;i++)
if(n%i==0)out.println(i);
}catch(NumberFormatException e)
{out.print("<H1>input number letter please!</H1>");}
}
public void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException,ServletException
{
PrintWriter out=response.getWriter();
response.setContentType("text/html;charset=GB2312");
out.println("<HTML><BODY>");
String number=request.getParameter("number");
double n=0;
try
{
n=Double.parseDouble(number);
out.println("<H1>Primnumbers less "+n+" :</H1>");
int j=1;
for(int i=1;i<n;i++)
{
for(j=2;j<i;j++)
if(i%j==0)break;
if(j>=i)out.println(i);
}
}catch(NumberFormatException e)
{out.print("<H1>input number letter please!</H1>");}
}
}
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