JavaSwing中的表格(JTable)和树(JTree)组件使用实例

public class JTableDemo1 extends JFrame { 
 
    //定义表格 
    JTable table; 
    //定义滚动条面板(用以使表格可以滚动) 
    JScrollPane scrollPane; 
    //定义数据模型类的对象(用以保存数据)， 
    DefaultTableModel tableModel; 
 
    public JTableDemo1() { 
        super(); 
        setTitle("表格模型与表格"); 
 
        scrollPane = new JScrollPane(); 
         
        // 定义表格列名数组 
        String[] columnNames = { "A", "B","C" }; 
        // 定义表格数据数组 
        String[][] tableValues = { { "A1", "B1","C1" }, { "A2", "B2","C2" }, 
                { "A3", "B3","C3" }, { "A4", "B4","C4" } }; 
 
        // 创建指定表格列名和表格数据的表格模型类的对象 
        tableModel = new DefaultTableModel(tableValues, columnNames); 
        // 创建指定表格模型的表格 
        table = new JTable(tableModel); 
 
        //设置 RowSorter(RowSorter 用于提供对 JTable 的排序和过滤)。 
        table.setRowSorter(new TableRowSorter(tableModel)); 
        scrollPane.setViewportView(table); 
        getContentPane().add(scrollPane, BorderLayout.CENTER); 
 
        setBounds(300, 200, 400, 300); 
        setVisible(true); 
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    } 
 
    public static void main(String args[]) { 
        new JTableDemo1(); 
    } 
}

import java.awt.*; 
import javax.swing.*; 
 
public class JTableDemo3 { 
 
    JFrame frame; 
    JPanel panel; 
    JScrollPane scrollPane1, scrollPane2, scrollPane3; 
    JTable jtable1, jtable2, jtable3; 
 
    public JTableDemo3() { 
        frame = new JFrame("JTableDemo"); 
 
        jtable1 = new JTable(8, 6); 
 
        final Object[] columnNames = { "姓名", "性别", "家庭地址",// 列名最好用final修饰 
                "电话号码", "生日", "工作", "收入", "婚姻状况", "恋爱状况" }; 
        Object[][] rowData = { 
                { "ddd", "男", "江苏南京", "1378313210", "03/24/1985", "学生", "寄生中", 
                        "未婚", "没" }, 
                { "eee", "女", "江苏南京", "13645181705", "xx/xx/1985", "家教", "未知", 
                        "未婚", "好象没" }, 
                { "fff", "男", "江苏南京", "13585331486", "12/08/1985", "汽车推销员", 
                        "不确定", "未婚", "有" }, 
                { "ggg", "女", "江苏南京", "81513779", "xx/xx/1986", "宾馆服务员", 
                        "确定但未知", "未婚", "有" }, 
                { "hhh", "男", "江苏南京", "13651545936", "xx/xx/1985", "学生", "流放中", 
                        "未婚", "无数次分手后没有" } }; 
 
        jtable2 = new JTable(rowData, columnNames); 
 
        jtable3 = new JTable(rowData, columnNames); 
        jtable3.setPreferredScrollableViewportSize(new Dimension(600, 100));// 设置表格的大小 
        jtable3.setRowHeight(30);// 设置每行的高度为20 
        jtable3.setRowHeight(0, 20);// 设置第1行的高度为15 
        jtable3.setRowMargin(5);// 设置相邻两行单元格的距离 
        jtable3.setRowSelectionAllowed(true);// 设置可否被选择.默认为false 
        jtable3.setSelectionBackground(Color.white);// 设置所选择行的背景色 
        jtable3.setSelectionForeground(Color.red);// 设置所选择行的前景色 
        jtable3.setGridColor(Color.red);// 设置网格线的颜色 
        jtable3.selectAll();// 选择所有行 
        jtable3.setRowSelectionInterval(0, 2);// 设置初始的选择行,这里是1到3行都处于选择状态 
        jtable3.clearSelection();// 取消选择 
        jtable3.setDragEnabled(false);// 不懂这个 
        jtable3.setShowGrid(true);// 是否显示网格线 
        jtable3.setShowHorizontalLines(true);// 是否显示水平的网格线 
        jtable3.setShowVerticalLines(true);// 是否显示垂直的网格线 
        jtable3.setValueAt("tt", 0, 0);// 设置某个单元格的值,这个值是一个对象 
        jtable3.doLayout(); 
        jtable3.setBackground(Color.cyan); 
 
        // JTable最好加在JScrollPane上以实现滚动效果 
        scrollPane1 = new JScrollPane(jtable1); 
        scrollPane2 = new JScrollPane(jtable2); 
        scrollPane3 = new JScrollPane(jtable3); 
 
        panel = new JPanel(new GridLayout(0, 1)); 
        panel.setPreferredSize(new Dimension(600, 400)); 
        panel.setBackground(Color.black); 
        panel.add(scrollPane1); 
        panel.add(scrollPane2); 
        panel.add(scrollPane3); 
 
        frame.setContentPane(panel); 
        frame.pack(); 
        frame.setVisible(true); 
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    } 
 
    public static void main(String[] args) { 
        new JTableDemo3(); 
    } 
}

public class JTreeDemo1 { 
     
    JFrame f;  
    Box box; 
    JTree jTree1,jTree2; 
     
    public JTreeDemo1() 
    { 
        f = new JFrame(" JTreeDemo1 "); 
        box = Box.createHorizontalBox(); //创建Box 类对象 
         
        jTree1 = new JTree(); 
        jTree2 = new JTree(); 
         
        //向此组件添加任意的键/值 
        jTree1.putClientProperty("JTree.lineStyle", "Angled");  
         
        //向Box 容器添加滚动面板 
        box.add(new JScrollPane(jTree1), BorderLayout.WEST); 
        box.add(new JScrollPane(jTree2), BorderLayout.EAST); 
         
        f.getContentPane().add(box, BorderLayout.CENTER); 
         
        f.setSize(300, 240); 
        //f.pack(); 
        f.setLocation(300, 200); 
        f.setVisible(true); 
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    } 
     
    public static void main(String[] args) { 
        new JTreeDemo1(); 
    } 
}

public class JTreeDemo2 { 
 
    JFrame f;  
    JPanel p;  
    JTree jTree1,jTree2,jTree3,jTree4,jTree5,jTree6,jTree7; 
     
    public JTreeDemo2() { 
         
        f = new JFrame(" JTreeDemo2 "); 
         
        // 构造函数：JTree() 
        jTree1 = new JTree(); 
         
        // 构造函数：JTree(Object[] value) 
        Object[] letters = { " a ", " b ", " c ", " d ", " e " }; 
        jTree2 = new JTree(letters); 
 
        // 构造函数：JTree(TreeNode root)(TreeNode空) 
        // 用空结点创建树 
        DefaultMutableTreeNode node1 = new DefaultMutableTreeNode(); // 定义树结点 
        jTree3 = new JTree(node1); // 用此树结点做参数调用 JTree的构造函数创建含有一个根结点的树 
 
        // 构造函数：JTree(TreeNode root)(同上,只是TreeNode非空) 
        // 用一个根结点创建树 
        DefaultMutableTreeNode node2 = new DefaultMutableTreeNode(" Color "); 
        jTree4 = new JTree(node2); // 结点不可以颜色,默认为白面黑字 
        jTree4.setBackground(Color.lightGray); 
 
         
        // 构造函数：JTree(TreeNode root, boolean 
        // asksAllowsChildren)(同上,只是TreeNode又有不同) 
        // 使用DefaultMutableTreeNode类先用一个根结点创建树，设置为可添加孩子结点,再添加孩子结点 
        DefaultMutableTreeNode color = new DefaultMutableTreeNode(" Color ", 
                true); 
         
        DefaultMutableTreeNode gray = new DefaultMutableTreeNode(" Gray "); 
        gray.add(new DefaultMutableTreeNode(" Lightgray ")); 
        gray.add(new DefaultMutableTreeNode(" Darkgray ")); 
         
        color.add(gray); 
         
        color.add(new DefaultMutableTreeNode(" Red ")); 
        color.add(new DefaultMutableTreeNode(" Green ")); 
 
        jTree5 = new JTree(color); 
 
         
        // 构造函数：JTree(TreeNode root)(同上,只是TreeNode非空) 
        // 通过逐个添加结点创建树 
        DefaultMutableTreeNode biology = new DefaultMutableTreeNode(" Biology "); 
        DefaultMutableTreeNode animal = new DefaultMutableTreeNode(" Animal "); 
        DefaultMutableTreeNode mammal = new DefaultMutableTreeNode(" Mammal "); 
        DefaultMutableTreeNode horse = new DefaultMutableTreeNode(" Horse "); 
        mammal.add(horse); 
        animal.add(mammal); 
        biology.add(animal); 
         
        jTree6 = new JTree(biology); 
        horse.isLeaf(); 
        horse.isRoot(); 
 
         
        // 构造函数:JTree(TreeModel newModel) 
        // 用DefaultMutableTreeNodel类定义一个结点再用这个结点做参数定义一个用DefaultTreeMode 
        // 创建一个树的模型,再用JTree的构造函数创建一个树 
        DefaultMutableTreeNode root = new DefaultMutableTreeNode(" Root1 "); 
        DefaultMutableTreeNode child1 = new DefaultMutableTreeNode(" Child1 "); 
        DefaultMutableTreeNode child11 = new DefaultMutableTreeNode(" Child11 "); 
        DefaultMutableTreeNode child111 = new DefaultMutableTreeNode( 
                " Child111 "); 
        root.add(child1); 
        child1.add(child11); 
        child11.add(child111); 
 
        DefaultTreeModel model = new DefaultTreeModel(root); 
 
        jTree7 = new JTree(model); 
 
         
        p = new JPanel(); 
        p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS)); 
        p.setPreferredSize(new Dimension(700, 400)); 
         
        // JTree必须放在JScrollPane上 
        p.add(new JScrollPane(jTree1));  
        p.add(new JScrollPane(jTree2)); 
        p.add(new JScrollPane(jTree3)); 
        p.add(new JScrollPane(jTree4)); 
        p.add(new JScrollPane(jTree5)); 
        p.add(new JScrollPane(jTree6)); 
        p.add(new JScrollPane(jTree7)); 
 
         
        f.setContentPane(p); 
        f.pack(); 
        f.setLocation(300, 200); 
        f.setVisible(true); 
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    } 
 
    public static void main(String[] args) { 
         
        new JTreeDemo2(); 
     
    } 
}