netbeans - Java: Set the default button -

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to set default button suppose jbutton4 following code has used: this.getrootpane().setdefaultbutton(jbutton4); add this?

what tried: tried add in main function gave me error, tried put inside button action performed block did not work, tried put before main function gave me error.

question: put line of code works? using netbeans gui make program.

you add line everywhere want set default button (a button click, create ui etc.).

i think nice place create ui elements.

in case be, after initcomponents();


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