动态创建JPanel

Question

我想将JPanel创建为JFrame

的一部分

private void initialize() {
        frame = new JFrame();
        frame.getContentPane().add((new JPanelSql("testName" , "testTxt")) , "cell 1 2,grow");

    }

---

class JPanelSql extends JPanel {

    private String name ; 
    private String txt ; 

    public JPanelSql (String name , String txt ) {
        this.name = name ; 
        this.txt = txt ;
    }

    public void createJPanel () { 


        JLabel lblNewLabel = new JLabel(name);
        super.add(lblNewLabel);

        JTextArea textArea = new JTextArea(); 
        textArea.append(txt)   ;
        super.add(textArea);
    }

}

但是，这不会在JFrame中创建任何JPanel。

如何动态创建JPanel？

Answer 1

尝试在构造函数中添加createJPanel ...

public JPanelSql (String name , String txt ) {
    this.name = name ; 
    this.txt = txt ;
    createJPanel();
}

这将创建组件并将其添加到面板......