IntelliJ IDEA folding example

folding.java

public void init() {

        //Execute a job on the event-dispatching thread; creating this applet's GUI.
        try {
            SwingUtilities.invokeAndWait(new Runnable() {
                public void run() {
                    buffer = new StringBuffer();
                }
            });
        } catch (Exception e) {
            System.err.println("createGUI didn't complete successfully");
        }

    }

public void init() {
        //Execute a job on the event-dispatching thread; creating this applet's GUI.
        try {
            SwingUtilities.invokeAndWait(() -> {
                    buffer = new StringBuffer();
                }
            });
        } catch (Exception e) {
            System.err.println("createGUI didn't complete successfully");
        }

    }