How Do I Develop A Code For Button Click To Open A Form?

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Java

netbeans

visaCheck.java is my form

so now i want to open that form by button click
here i develop a code for that?

private void visaMenu3menu2ActionPerformed(java.awt.event.ActionEvent evt) {                                               
        
        visaCheck().setVisible(true);
        
        
    } 

but this code is not working..
gives me an error.