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在这两个岗位@iMohammad连接, 增加/减少内部使用的JButton textarea的字体大小和 上一个JButton的Java点击时更改字体样式 ......,我面临着从来到真是好笑问题JComboBox通过传递setPrototypeDisplayValue作为一个参数JComboBox's size上屏幕

请问我如何JComboBox动态调整大小,取决于Font我在sscce中尝试的另一个JComponents的正确工作

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class ComboBoxFontChange extends JFrame {

    private static final long serialVersionUID = 1L;
    private JComboBox cbox = new JComboBox();
    private JTextField tfield = new JTextField("Change");
    private JLabel label = new JLabel("Cash");
    private JButton button = new JButton("++ Font");
    private JTextField text;
    private JPanel panel = new JPanel();

    public ComboBoxFontChange() {
        super("Combo Box Font change"); …