public class ComponentSelector

`for (Component c : $("Label")) {
    c.getStyle().setFgColor(0xff0000);`
}

`$("Label").setFgColor(0xff0000);`

`Button myButton = $(new Button("Some text"))
.setUIID("Label")
.addTags("cell", "row-"+rowNum, "col-"+colNum, rowNum%2==0 ? "even":"odd")
.putClientProperty("row", rowNum)
.putClientProperty("col", colNum)
.asComponent(Button.class);`

    private void showEffectsForm() {
        Form f = new Form("Effects", new BorderLayout());
        applyToolbar(f);
        Button fadeInFadeOut = $(new Button("Fade"))
                .setIcon(FontImage.MATERIAL_BLUR_ON, 4)
                .addActionListener(e->{
                    $(e).getParent().find(">*").fadeOutAndWait(1000).fadeInAndWait(1000);
                })
                .asComponent(Button.class);


        Button slideUp = $(new Button("Slide Up"))
                .setIcon(FontImage.MATERIAL_EXPAND_LESS)
                .addActionListener(e->{
                    $(e).getParent().find(">*").slideUpAndWait(1000).slideDownAndWait(1000);
                })
                .asComponent(Button.class);


        Button replace = $(new Button("Replace Fade/Slide"))
                .setIcon(FontImage.MATERIAL_REDEEM)
                .addActionListener(e->{
                    $(e).getParent()
                            .find(">*")
                            .replaceAndWait(c->{
                                return $(new Label("Replacement"))
                                        .putClientProperty("origComponent", c)
                                        .asComponent();
                            }, CommonTransitions.createFade(1000))
                            .replaceAndWait(c->{
                                Component orig = (Component)c.getClientProperty("origComponent");
                                if (orig != null) {
                                    c.putClientProperty("origComponent", null);
                                    return orig;
                                }
                                return c;

                            }, CommonTransitions.createCover(CommonTransitions.SLIDE_HORIZONTAL, false, 1000));


                })
                .asComponent(Button.class);


        Button replaceFlip = $(new Button("Replace Flip"))
                .setIcon(FontImage.MATERIAL_REDEEM)
                .addActionListener(e->{
                    $(e).getParent()
                            .find(">*")
                            .replaceAndWait(c->{
                                return $(new Label("Replacement"))
                                        .putClientProperty("origComponent", c)
                                        .asComponent();
                            },new FlipTransition(0xffffff, 1000))
                            .replaceAndWait(c->{
                                Component orig = (Component)c.getClientProperty("origComponent");
                                if (orig != null) {
                                    c.putClientProperty("origComponent", null);
                                    return orig;
                                }
                                return c;

                            },new FlipTransition(0xffffff, 1000));


                })
                .asComponent(Button.class);

        Container root = GridLayout.encloseIn(3, fadeInFadeOut, slideUp, replace, replaceFlip);
        f.addComponent(BorderLayout.CENTER, root);
        f.show();
    }

    private void showTableDemo() {
        Form f = new Form("Table Demo", new BorderLayout());
        applyToolbar(f);
        CSVParser parser = new CSVParser();
        String[][] data = null;
        try {
            data =   parser.parse(Display.getInstance().getResourceAsStream(null, "/sample-data.csv"));
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        if (data== null) {
            ToastBar.showMessage("Failed to parse sample data", FontImage.MATERIAL_INFO);
            return;
        }
        int numRows = data.length;
        int numCols = data[0].length;
        TableLayout tl = new TableLayout(numRows, numCols);
        Container table = new Container(tl);
        int rowNum = 0;
        int colNum = 0;
        for (String[] row : data) {
            colNum = 0;
            for (String cell : row) {
                table.add(
                        tl.createConstraint(rowNum, colNum),
                        $(new Button(cell))
                                .setUIID("Label")
                                .addTags("cell", "row-"+rowNum, "col-"+colNum, rowNum%2==0 ? "even":"odd")
                                .putClientProperty("row", rowNum)
                                .putClientProperty("col", colNum)
                                .asComponent()

                );
                colNum++;
            }
            rowNum++;
        }


        $(".cell", table).setMargin(0).setPadding(0)
                .addActionListener(e->{
                    // Action listener in each cell so that we can highlight the
                    // selected row
                    Component cell = (Component)e.getSource();
                    int row = (int)cell.getClientProperty("row");
                    int col = (int)cell.getClientProperty("col");

                    // Restore the style of the previously selected row
                    // and remove the selected-row tag
                    $(e).getParent().find(">.selected-row")
                            .each(c->{
                                // Restore the old style that we stored when we made
                                // the row selected originally (see below)
                                c.setUnselectedStyle((Style)c.getClientProperty("default-style"));
                            })
                            .removeTags("selected-row")
                            .getParent()
                            .repaint();

                    // Now add the "selected-row" tag, and modify the styles
                    $(e).getParent().find(">.row-"+row).addTags("selected-row")
                            .each(c->{
                                // Store the existing style so that we can
                                // reapply it when the row becomes unselected
                                Style oldStyle = new Style(c.getStyle());
                                c.putClientProperty("default-style", oldStyle);
                            })
                            .setBgColor(0x89cff0)
                            .setFgColor(0xffffff)
                            .setBgTransparency(255)
                            .getParent()
                            .repaint();
                });

        // Add striping to the table  (make the even rows gray)
        $(".even", table)
            .setBgColor(0xcccccc)
            .setBgTransparency(255);




        f.addComponent(BorderLayout.CENTER, $(BoxLayout.encloseY(table)).setScrollableY(true).asComponent());

        f.show();
    }

`Style pressed = $("Button", myContainer).getPressedStyle();
pressed.setFgColor(0xff0000);`

`$("Button", myContainer)
    .selectPressedStyle()
    .setFgColor(0xffffff)
    .setBgColor(0x0)
    .setBgTransparency(255);`

`$("Button:pressed", myContainer)
    .setFgColor(0xffffff)
    .setBgColor(0x0)
    .setBgTransparency(255);`

`$("Button", myContainer)
   .selectPressedStyle()
   .setFgColor(0x0000ff)
   .selectSelectedStyle()
   .setFgColor(0x00ff00);`

`ComponentSelector sel = $("Button").remove(myButton, true);
    // The set of all buttons on the current form, except myButton`

`ComponentSelector sel = $("Button").removeAll($(".some-tag"), true);
   // The set of all buttons that do NOT contain the tag ".some-tag"`

`ComponentSelector sel = $("Button").filter(c->{
    return c.isVisible();`);
    // The set of all buttons that are currently visible.
}