abstract 的 interface ，如何理解？

kerry_zeng發表於2003-08-11
package javax.servlet;

// Imports
import java.io.IOException;

public abstract interface Servlet {

// Methods
void init(ServletConfig servletConfig) throws ServletException;
ServletConfig getServletConfig();
void service(ServletRequest servletRequest, ServletResponse servletResponse) throws ServletException, IOException;
String getServletInfo();
void destroy();
}

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