如何调用JFrame并设置外观？

Question

My program starts with a class that calls out a JFrame . On the frame, I have the LaF set up correctly, but when the main class calls it, the LaF doesn't take.

If I start only the file, it works. If I start the project, it doesn't.

The code below is under the main method on the frame.

try {
         UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    } catch (ClassNotFoundException ex) {
        java.util.logging.Logger.getLogger(TelaTur.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (InstantiationException ex) {
        java.util.logging.Logger.getLogger(TelaTur.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
        java.util.logging.Logger.getLogger(TelaTur.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (javax.swing.UnsupportedLookAndFeelException ex) {
        java.util.logging.Logger.getLogger(TelaTur.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    }

If the main class calls it:

TelaTur tela = new TelaTur();
    tela.setVisible(true);

It doesn't take. Opening just the file (on Netbeans Shift + F6) takes the LaF.

I´m looking for the answer to:

How to set the look and feel from the main class?

Answer 1

This answer is based on what @GilianJoosen wrote on comments.

I created a method named setLookAndFeel() and called it before the initComponents() method on the constructor.

Thanks for the answers.