Examples of java.awt.Component

java.awt.Component
, now aButton has a listener with a reference // to bigOne! aButton.addActionListener(this); } public void actionPerformed(ActionEvent e) { System.out.println("Hello There"); } } In this example, serializing aButton by itself will cause MyApp and everything it refers to to be serialized as well. The problem is that the listener is serializable by coincidence, not by design. To separate the decisions about MyApp and the ActionListener being serializable one can use a nested class, as in the following example:
```
 import java.awt.*; import java.awt.event.*; import java.io.Serializable; class MyApp java.io.Serializable { BigObjectThatShouldNotBeSerializedWithAButton bigOne; Button aButton = new Button(); static class MyActionListener implements ActionListener { public void actionPerformed(ActionEvent e) { System.out.println("Hello There"); } } MyApp() { aButton.addActionListener(new MyActionListener()); } } 
```
Note: For more information on the paint mechanisms utilitized by AWT and Swing, including information on how to write the most efficient painting code, see Painting in AWT and Swing.
For details on the focus subsystem, see How to Use the Focus Subsystem, a section in The Java Tutorial, and the Focus Specification for more information. @version 1.451, 07/29/09 @author Arthur van Hoff @author Sami Shaio

    public Component getGUI(GraphicAttributes graphicAttributes) {
        Debug.message("eomg", "EditableOMPoly.getGUI");
        if (graphicAttributes != null) {
            JMenu ahm = getArrowHeadMenu();
            graphicAttributes.setLineMenuAdditions(new JMenu[] { ahm });
            Component gaGUI = graphicAttributes.getGUI();
            ((JComponent) gaGUI).add(getPolyGUI());
            return gaGUI;
        } else {
            return getPolyGUI();
        }

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     * Set the name of the plugin. If the parent component is a layer, set its
     * pretty name as well.
     */
    public void setName(String name) {
        this.name = name;
        Component comp = getComponent();
        if (comp != null) {
            comp.setName(name);
        }
    }

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    /**
     * Get the pretty name of the plugin, which is really the pretty name of the
     * parent component if it's set.
     */
    public String getName() {
        Component comp = getComponent();
        if (comp != null) {
            name = comp.getName();
        }
        return name;
    }

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     * the application. What that means is up to the LayerHandler or other
     * application components.
     */
    public void setRemovable(boolean set) {
        this.removable = set;
        Component comp = getComponent();
        if ((comp != null) && (comp instanceof Layer)) {
            ((Layer) comp).setRemovable(set);
        }
    }

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     * removed from an application.
     * 
     * @return true if plugin should be allowed to be deleted.
     */
    public boolean isRemovable() {
        Component comp = getComponent();
        if ((comp != null) && (comp instanceof Layer)) {
            this.removable = ((Layer) comp).isRemovable();
        }
        return removable;
    }

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                } else {
                    index = list.indexOf(omg);
                }


                if (parentLayer == null) {
                    Component comp = getComponent();
                    if (comp != null && comp instanceof Layer) {
                        parentLayer = (Layer) comp;
                    }
                }

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        if (Debug.debugging("layerspanel")) {
            Debug.output("LayerPane: layer pane for " + layer.getName()
                    + " receiving componentShown event");
        }


        Component comp = e.getComponent();
        if (comp == null) {
        } else if (comp == layer) {
            if (isLayerOn() != true) {
                setLayerOn(true);
                if (Debug.debugging("layerspanel")) {

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    public void componentHidden(ComponentEvent e) {
        if (Debug.debugging("layerspanel")) {
            Debug.output("LayerPane: layer pane for " + layer.getName()
                    + " receiving componentHidden event");
        }
        Component comp = e.getComponent();


        if (comp == layer) {
            if (isLayerOn() != false) {
                setLayerOn(false);
                if (Debug.debugging("layerspanel")) {

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            } catch (Exception e) {
                e.printStackTrace();
                editorClass = null;
            }


            Component editorFace = null;
            if (editor != null && editor.supportsCustomEditor()) {
                editorFace = editor.getCustomEditor();
            } else {
                editorFace = new JLabel("Does not support custom editor");
            }

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                label = ((Node) graphic).getLabel();
                // } else if (graphic instanceof Line) {
                // label = ((Line)graphic).getLabel();
            }
            if (receiver instanceof PlugIn) {
                Component comp = ((PlugIn) receiver).getComponent();
                if (comp instanceof Layer) {
                    if (graphic != null && label != null) {
                        ((Layer) comp).fireRequestToolTip("Node " + label);
                        toolTipUp = true;
                    } else if (toolTipUp) {

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