error: cannot find symbol - Java NetBeans

[empmdk]

\[code\] error: cannot find symbol displayActionPerformed(evt); symbol: method displayTimeActionPerformed(ActionEvent)1 error\[/code\]What is wrong with this?What do I need to import to fix this? Both\[code\] import java.awt.event.ActionEvent; import java.awt.event.ActionListener;\[/code\]are imported