private void jButton1ActionPerformed(
java.awt.event.ActionEvent evt) { // GEN-FIRST:event_jButton1ActionPerformed
Evaluation obj = new Evaluation();
String input = jTextField1.getText();
float ans = obj.calculate(input);
String ans1 = "" + ans;
if (ans == 34097) {
jLabel2.setText("Invalid Expression ");
jLabel2.show();
} else {
jLabel2.setText(ans1);
jLabel2.show();
}
} // GEN-LAST:event_jButton1ActionPerformed
