如何更改BoxLayout中元素的大小？

我有这门课：

package com.erikbalen.game.rpg;

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

public class Gui extends JFrame implements ActionListener {

/**
 * 
 */
private static final long serialVersionUID = -384241835772507459L;
JLabel playerInfo;
JTextField textField;
private final static String newline = "\n";
JTextArea feed;
JScrollPane scrollPane;
Player player;

public Gui() {
    super("Erik's RPG");

    //setLayout(new FlowLayout());

    Container contentPane = this.getContentPane();
    contentPane.setLayout(new BoxLayout(contentPane,BoxLayout.PAGE_AXIS));

    textField = new JTextField(30);

    textField.addActionListener(this);


    feed = new JTextArea(15, 30);
    feed.setEditable(false);
    scrollPane = new JScrollPane(feed);
}

当你运行它时,它会使textField真的很高,如果我扩展它,即使我只希望它是一定的高度.我怎么能够

解决方法:

BoxLayout扩展组件直到它们的最大大小,JTextField在返回Short.Max(或Integer.Max,忘记)的最大高度时行为异常.出路是让场地行为：

    @Override
    public Dimension getMaximumSize() {
        // TODO Auto-generated method stub
        Dimension dim = super.getMaximumSize();
        dim.height = getPreferredSize().height;
        return dim;
    }

或者,使用另一个LayoutManager

标签：java,user-interface,swing,boxlayout
来源： https://codeday.me/bug/20190610/1209700.html