Can you please describe what is happening in the are a highlighted in yellow.

package com. IST240Apps; import javax.swing.*; public class SalutonFrame extends Jframe public class SalutonFrame() super ( "Saluton Mondo!") setLookAndFeel(; setSize (450, 200); setDefaultcloseonoperation(Jframe.EXIT_ON_CLOSE) setvisible(false); privte void setLookAndFeel) f try f UIManager.setLookAndFeel( "javax.swing.plaf.nimbus.NimbusLookAndFeel" catch (Exception exc) f // ignore error public static void main(String[ ] arguments) SalutonFrame frame new SalutonFrame ()