label1.setText(“Hello, World!”); To display a label, you must add it to a panel, which in turn must be added to a frame. Here’s an example of a constructor for a frame class that creates a panel, creates a label, adds the label to the panel, and then adds the panel to t...
综合以上步骤,完整代码如下: importjavax.swing.JButton;importjavax.swing.JFrame;importjavax.swing.JLabel;importjava.awt.GridLayout;publicclassMyFrame{publicstaticvoidmain(String[]args){JFrameframe=newJFrame("My GUI");frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setSize(300,200);frame...
protected classJLabel.AccessibleJLabel 该类用于获得此对象的可访问性职责。 从类javax.swing.JComponent继承的嵌套类/接口 JComponent.AccessibleJComponent 从类java.awt.Container继承的嵌套类/接口 Container.AccessibleAWTContainer 从类java.awt.Component继承的嵌套类/接口 ...
gui; import java.awt.*; import java.awt.event.*; import javax.swing.*; public class SwingControlDemo { private JFrame mainFrame; private JLabel headerLabel; private JLabel statusLabel; private JPanel controlPanel; public SwingControlDemo(){ prepareGUI(); } public static void main(String[]...
Fields inherited from class javax.swing.JComponent listenerList,TOOL_TIP_TEXT_KEY,ui,UNDEFINED_CONDITION,WHEN_ANCESTOR_OF_FOCUSED_COMPONENT,WHEN_FOCUSED,WHEN_IN_FOCUSED_WINDOW Fields inherited from class java.awt.Component accessibleContext,BOTTOM_ALIGNMENT,CENTER_ALIGNMENT,LEFT_ALIGNMENT,RIGHT_ALIGNMENT,TOP...
类JComponent 中的getUIClassID 返回: 字符串 "LabelUI" 另请参见: JComponent.getUIClassID(), UIDefaults.getUI(javax.swing.JComponent)getTextpublic String getText()返回该标签所显示的文本字符串。 返回: 一个String 另请参见: setText(java.lang.String)set...
protected class JLabel.AccessibleJLabel 该类用于获取此对象的可访问角色。 嵌套类/接口声明在类 javax.swing.JComponent JComponent.AccessibleJComponent 嵌套类/接口声明在类 java.awt.Container Container.AccessibleAWTContainer 嵌套类/接口声明在类 java.awt.Component Component.AccessibleAWTComponent, Component.Ba...
classJLabelSwingExample { publicstaticvoidmain(Stringargs[]) { JLabelExampleframe=newJLabelExample(); frame.setTitle("JLabel inJavaSwing Example"); frame.setBounds(200,250,150,150); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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Class Description protected class JLabel.AccessibleJLabel The class used to obtain the accessible role for this object. Nested classes/interfaces declared in class javax.swing.JComponent JComponent.AccessibleJComponent Nested classes/interfaces declared in class java.awt.Container Container.AccessibleAWTCo...