java - netbeans warning: "Utility class without constructor" -

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i have convenience, utility class displaying error messages in swing app:

public class errormessage {     public static void error(component parent, string message){         joptionpane.showmessagedialog(parent, message, "error", joptionpane.error_message);     } }

however, netbeans (not compiler) gives warning:

utility class without constructor

i know can turn off warning, i'm wondering: point of warning? alt+enter shows me netbeans wants me create private constructor:

private errormessage() { }

why?

as asking question, answer became obvious:

so no 1 accidentally creates instance of errormessage class. because constructor private, cannot instantiated. great hint, realize it's for.


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