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nice q from jiris mock exam  RSS feed

 
Bhumika Thakkar
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Which statements are TRUE regarding the following code? Mark

Please select two correct answers.



import javax.servlet.*;
import javax.servlet.http.*;

public class MyServlet extends GenericServlet {

public void init() { //1
// Do something
}

public void init(ServletConfig config) //2
throws ServletException{
// Do something
super.init(config); //3
}

public void destroy() { //4
// Do something
}

public void service(ServletRequest req, //5
ServletResponse res) {
// Do something
}
}

A : Method //1 is necessary for this code to compile
B : Method //2 is necessary for this code to compile
C : Line //3 is necessary for this code to run
D : Method //4 is necessary for this code to compile
E : Method //5 is necessary for this code to compile

ANSWER: C, E
 
Narendra Dhande
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Hi,

As the GenericServlet have a abstract service() method, It should be override by the extending Servlet.

The option C is correct. The Code will compile without this method call, but the ServletConfig object will not available. The Specification mandate when overriding this form of method, call super.init(config). Looking reasonable.

Thanks
 
It is sorta covered in the JavaRanch Style Guide.
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