我不明白为什么我的文本字段显示为狭缝而不是给定的大小?我是否遗漏了什么,或者我认为问题是我施加的限制太小?提前致谢!
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class addEntry
{
public void addEntryFrame()
{
JFrame entryFrame = new JFrame("Passafe");
entryFrame.setSize(500,500);
entryFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
JPanel topPanel = new JPanel();
JLabel topHeader = new JLabel("Add New Entry: ");
topHeader.setFont(new Font("Ariel", Font.BOLD, 24));
topPanel.add(topHeader);
JPanel centerPanel = new JPanel(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.insets = new Insets(15,15,15,15);
JLabel name = new JLabel("Name: ");
JLabel username = new JLabel("Username: ");
JLabel password = new JLabel("Password: ");
JLabel description = new JLabel("Description: ");
JTextField nametf = new JTextField(20);
JTextField usernametf = new JTextField(20);
JTextField passwordtf = new JTextField(20);
JTextField descriptiontf = new JTextField(50);
gbc.gridx = 0;
gbc.gridy = 0;
centerPanel.add(name, gbc);
gbc.gridx = 1;
gbc.gridy = 0;
centerPanel.add(nametf, gbc);
gbc.gridx = 0;
gbc.gridy = 2;
centerPanel.add(username, gbc);
gbc.gridx = 1;
gbc.gridy = 2;
centerPanel.add(usernametf, gbc);
gbc.gridx = 0;
gbc.gridy = 3;
centerPanel.add(password, gbc);
gbc.gridx = 1;
gbc.gridy = 3;
centerPanel.add(passwordtf, gbc);
gbc.gridx = 0;
gbc.gridy = 4;
centerPanel.add(description, gbc);
gbc.gridx = 1;
gbc.gridy = 4;
centerPanel.add(descriptiontf, gbc);
JPanel bottomPanel = new JPanel();
JButton saveEntryButton = new JButton("SAVE");
bottomPanel.add(saveEntryButton);
entryFrame.add(topPanel, BorderLayout.NORTH);
entryFrame.add(centerPanel, BorderLayout.CENTER);
entryFrame.add(bottomPanel, BorderLayout.SOUTH);
entryFrame.setVisible(true);
}
}
最佳答案
不要在 addEntryFrame() 末尾使用
方法。entryFrame.setSize(500, 500);
而应使用 entryFrame.pack();
关于java - JPanels 文本字段 GBC,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/24060218/