How to create simple timer ?

how to insert a simple timer to this code ?
void jButton4_actionPerformed(ActionEvent e) {
jLabel1.setText("Loading ..");
// insert timer here
setGetShow("A","t4d"," ","1");
jLabel1.setText("Done.");
}

better use a thread class for this..
i am not clear the requirement too..
so please let me know the reauirement [email protected]

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