if you have two or more components that perform the same function, consider using anActionobject to implement the function. AnActionobject is anaction listenerthat provides not only action-event handling, but also centralized handling of the state of action-event-firing components such astool bar...
One of the key elements in shaping the visual identity of GUI components is the font they use. ThesetFont()method in Java, particularly when combined with the creation ofFontobjects, offers a powerful mechanism for customizing the font characteristics of various components. ...
theComponentargument is the parent of the dialog and theStringargument specifies the dialog title. The other arguments are as follows: thebooleanspecifies whether the dialog is modal, theJColorChooseris the color chooser to display in the dialog, the firstActionListeneris for theOKbutton, and the...
import java.awt.BorderLayout; import java.awt.datatransfer.DataFlavor; import java.awt.datatransfer.Transferable; import java.awt.datatransfer.UnsupportedFlavorException; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.IOException; import javax.swing.DropMode; import...
c.fill = GridBagConstraints.NONE; c.weightx = 0; c.anchor = GridBagConstraints.WEST; buttonBrowse.addActionListener(new ActionListener() { //监听Browse点击事件 @Override public void actionPerformed(ActionEvent e) { FileDialog fd = new FileDialog(gbl); fd.setSize(400, 300); fd.setVisible(...
import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JCheckBox; import javax.swing.JPanel; @@ -67,11 +65,8 @@ protected void buildUI(JPanel content) { // Create override check box. overrideCheckbox = new JCheckBox(Msg.ge...
A bit of integration is required to connect these functions to the UI elements in your app (like menu items or toolbar buttons) that a user will interact with. 1. Create anActionListenerto route cut-copy-paste actions to the canvas ...
public void subscribeTopic(String topic) { try { mqttAndroidClient.subscribe(topic, 0, null, new IMqttActionListener() { @Override public void onSuccess(IMqttToken asyncActionToken) { Log.i(TAG, "subscribed succeed"); } @Override public void onFailure(IMqttToken asyncActionToken, Throwable ex...
java.awt 中ActionListener 的使用实现ActionListener 的java.awt 中的类 class AWTEventMulticaster AWTEventMulticaster 实现对 java.awt.event 包中定义的 AWT 事件的指派,该指派是有效的、线程安全的多路广播事件指派。 protected class List.AccessibleAWTList 此类实现 List 类的可访问性支持。
importjava.awt.FocusTraversalPolicy;importjava.awt.GridLayout;importjava.awt.event.ActionEvent;importjava.awt.event.ActionListener;importjava.util.Vector;importjavax.swing.BorderFactory;importjavax.swing.JCheckBox;importjavax.swing.JComponent;importjavax.swing.JFrame;importjavax.swing.JLabel;importjavax.swing...