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如何正確定位 JButtons 和大小 JTextFields？

Java

富國滬深 2022-05-21 17:22:12

我正在嘗試創(chuàng)建一個密碼庫，但每當(dāng)我嘗試運(yùn)行它時，JTextFields 都非常小，并且面板有點(diǎn)被JTable.我嘗試過使用尺寸和位置，GridBag但沒有任何效果。這是給我的 IB 計(jì)算機(jī)科學(xué) IA 的。任何幫助都會很棒。 JFrame passwordVault; JTable passwordTable; Object[] columnNames = {"Name of Application", "Application Password", "Description"}; JTextField appName, appPass, appDesc; JButton add, delete, update; JLabel nameOfApp, passOfApp, descOfApp; passwordVault = new JFrame("Password Vault"); passwordTable = new JTable(); JPanel passwordPanel = new JPanel(); DefaultTableModel tableModel = new DefaultTableModel(); tableModel.setColumnIdentifiers(columnNames); passwordTable.setModel(tableModel); nameOfApp = new JLabel("App Name: "); passOfApp = new JLabel("App Password: "); descOfApp = new JLabel("Description: "); appName = new JTextField(); appPass = new JTextField(); appDesc = new JTextField(); add = new JButton("Add"); delete = new JButton("Delete"); update = new JButton("Update"); appName.setBounds(400, 220, 100, 25); appPass.setBounds(400, 250, 100, 25); appDesc.setBounds(400, 280, 100, 25); add.setBounds(530, 220, 100, 25); update.setBounds(530, 250, 100, 25); delete.setBounds(530, 280, 100, 25); JScrollPane scrollPane = new JScrollPane(passwordTable); scrollPane.setBounds(0, 0, 1000, 200); passwordVault.add(scrollPane); passwordPanel.add(add); passwordPanel.add(update); passwordPanel.add(delete); passwordPanel.setLayout(new GridBagLayout());

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1 回答

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這是您的程序的編輯版本，它按照我認(rèn)為您嘗試的方式格式化布局：

JFrame passwordVault;

JTable passwordTable;

Object[] columnNames = {"Name of Application", "Application Password", "Description"};

JTextField appName, appPass, appDesc;

JButton add, delete, update;

JLabel nameOfApp, passOfApp, descOfApp;

passwordVault = new JFrame("Password Vault");

passwordTable = new JTable();

JPanel passwordPanel = new JPanel();

DefaultTableModel tableModel = new DefaultTableModel();

tableModel.setColumnIdentifiers(columnNames);

passwordTable.setModel(tableModel);

nameOfApp = new JLabel("App Name: ");

passOfApp = new JLabel("App Password: ");

descOfApp = new JLabel("Description: ");

appName = new JTextField();

appPass = new JTextField();

appDesc = new JTextField();

add = new JButton("Add");

delete = new JButton("Delete");

update = new JButton("Update");

// Used setPreferredSize and setLocation instead of setBounds

appName.setLocation(new Point(400, 220));

appName.setPreferredSize(new Dimension(100, 25));

appPass.setLocation(new Point(400, 250));

appPass.setPreferredSize(new Dimension(100, 25));

appDesc.setLocation(new Point(400, 280));

appDesc.setPreferredSize(new Dimension(100, 25));

add.setLocation(new Point(530, 220));

add.setPreferredSize(new Dimension(100, 25));

update.setLocation(new Point(530, 250));

update.setPreferredSize(new Dimension(100, 25));

delete.setLocation(new Point(530, 280));

delete.setPreferredSize(new Dimension(100, 25));

JScrollPane scrollPane = new JScrollPane(passwordTable);

scrollPane.setBounds(0, 0, 1000, 200);

// Create a JPanel to contain the scrollPane and passwordPanel

JPanel framePanel = new JPanel();

framePanel.setLayout(new GridLayout(2, 1));

framePanel.add(scrollPane);

passwordPanel.setLayout(new GridBagLayout());

passwordPanel.add(nameOfApp, new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0,

GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));

passwordPanel.add(appName, new GridBagConstraints(1, 0, 1, 1, 0.0, 0.0,