private static final String[] NAMES = { "Integer numbers", "Real numbers", "Other tokens" }
增加这个，就能增加列，自己琢磨
import java.awt.*
import java.awt.event.*
import java.io.File
import java.text.*
import java.util.*
import java.util.concurrent.ConcurrentHashMap
import javax.swing.*
import javax.swing.table.*
public class TokenCategorizer extends JFrame
{
private static final long serialVersionUID = 1L
private static final String FILE_NAME = "test.txt"
private static final String[] NAMES = { "Integer numbers", "Real numbers", "Other tokens" }
private static String[][] data = null
private static JList jList = null
private static JTable tableView = null
private static LinkedList<String[]> list = new LinkedList<String[]> ()
private static String[] strs = new String[NAMES.length]
private static Vector<SupportedLaF> lafVector = new Vector<SupportedLaF> ()
private static Map<Integer, Vector<String>> tabelDataMap = new ConcurrentHashMap<Integer, Vector<String>> ()
private static final String PLASTIC3D = "com.jgoodies.looks.plastic.Plastic3DLookAndFeel"
private static final String PLASTIC = "com.jgoodies.looks.plastic.PlasticLookAndFeel"
private static final String PLASTXP = "com.jgoodies.looks.plastic.PlasticXPLookAndFeel"
public TokenCategorizer ( String title )
{
UIManager.installLookAndFeel ("Plastic3D", PLASTIC3D)
UIManager.installLookAndFeel ("Plastic", PLASTIC)
UIManager.installLookAndFeel ("PlasticXP", PLASTXP)
UIManager.LookAndFeelInfo[] installedLafs = UIManager.getInstalledLookAndFeels ()
for ( UIManager.LookAndFeelInfo lafInfo : installedLafs )
{
try
{
Class<?> lnfClass = Class.forName (lafInfo.getClassName ())
LookAndFeel laf = (LookAndFeel) ( lnfClass.newInstance () )
if (laf.isSupportedLookAndFeel ())
{
String name = lafInfo.getName ()
lafVector.add (new SupportedLaF (name, laf))
}
}
catch (Exception e)
{
continue
}
}
this.setTitle (title)
}
private static class SupportedLaF
{
String name
LookAndFeel laf
SupportedLaF ( String name, LookAndFeel laf )
{
this.name = name
this.laf = laf
}
public String toString ()
{
return name
}
}
private static void createTable ( TokenCategorizer tc )
{
TableModel dataModel = new AbstractTableModel ()
{
private static final long serialVersionUID = 1L
public int getColumnCount ()
{
return NAMES.length
}
public int getRowCount ()
{
return data[0].length
}
public Object getValueAt ( int row, int col )
{
return data[col][row]
}
public String getColumnName ( int column )
{
return NAMES[column]
}
}
tableView = new JTable (dataModel)
tableView.setSelectionMode (ListSelectionModel.SINGLE_SELECTION)
tableView.setRowSelectionInterval (0, 0)
initTableData (tableView, list, strs)
tableView.addMouseListener (new MouseAdapter ()
{
@Override
public void mouseClicked ( MouseEvent e )
{
initTableData (tableView, list, strs)
}
})
JScrollPane scrollpane = new JScrollPane (tableView)
scrollpane.setPreferredSize (new Dimension (500, 400))
tc.add (scrollpane)
}
private static void initTableData ( final JTable tableView, final LinkedList<String[]> list, final String[] strs )
{
try
{
list.clear ()
int row = tableView.getSelectedRow ()
Vector<String> v = null
if (null != ( v = tabelDataMap.get (row) ))
{
jList.setListData (v)
}
else
{
for ( int j = 0 j < NAMES.length j++ )
{
strs[j] = data[j][row]
}
permutations (list, NAMES.length, strs, 0, -1)
v = new Vector<String> ()
for ( String[] strings : list )
{
v.add (Arrays.toString (strings).replaceAll ("[\\[\\]]", ""))
}
jList.setListData (v)
tabelDataMap.put (row, v)
}
}
catch (Exception e)
{}
}
private static void createList ( TokenCategorizer tc )
{
ListModel dataModel = new AbstractListModel ()
{
private static final long serialVersionUID = 1L
@Override
public int getSize ()
{
return NAMES.length
}
@Override
public Object getElementAt ( int index )
{
return NAMES[index]
}
}
jList = new JList (dataModel)
jList.addMouseListener (new MouseAdapter()
{
@Override
public void mouseClicked ( MouseEvent e )
{
System.out.println (jList.getSelectedValue ())
}
})
}
private static void initFrame ( TokenCategorizer tc )
{
tc.setLayout (new FlowLayout (FlowLayout.LEFT))
tc.setSize (800, 400)
tc.setLocationRelativeTo (null)
tc.pack ()
tc.setResizable (false)
tc.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE)
tc.setVisible (true)
}
private static LinkedList<String[]> permutations ( LinkedList<String[]> list, int count, String[] array, int ind,
int start, int... indexs )
{
start++
if (start > count - 1)
{
return null
}
if (start == 0)
{
indexs = new int[array.length]
}
for ( indexs[start] = 0 indexs[start] < array.length indexs[start]++ )
{
permutations (list, count, array, 0, start, indexs)
if (start == count - 1)
{
String[] temp = new String[count]
for ( int i = count - 1 i >= 0 i-- )
{
temp[start - i] = array[indexs[start - i]]
}
boolean flag = true
L: for ( int i = 0 i < temp.length i++ )
{
for ( int j = i + 1 j < temp.length j++ )
{
if (temp[i].equals (temp[j]))
{
flag = false
break L
}
}
}
if (flag)
{
list.add (temp)
}
}
}
return list
}
private static void initOthers ( final TokenCategorizer tc )
{
JPanel jPanel = new JPanel ()
BoxLayout boxLayout = new BoxLayout (jPanel, BoxLayout.Y_AXIS)
jPanel.setLayout (boxLayout)
jPanel.setPreferredSize (new Dimension (300, 400))
JScrollPane scrollpane = new JScrollPane (jList)
scrollpane.setPreferredSize (new Dimension (300, 400))
jPanel.add (scrollpane)
final JFileChooser chooser = new JFileChooser ()
JPanel bottomPanel = new JPanel ()
JButton jButton = new JButton ("Import File Data")
jButton.addActionListener (new ActionListener ()
{
@Override
public void actionPerformed ( ActionEvent e )
{
int returnVal = chooser.showOpenDialog (tc)
if (returnVal == JFileChooser.APPROVE_OPTION)
{
File file = chooser.getSelectedFile ()
loadFileData (file.getPath ())
SwingUtilities.updateComponentTreeUI (tc)
tabelDataMap.clear ()
tableView.setRowSelectionInterval (0, 0)
initTableData (tableView, list, strs)
}
}
})
bottomPanel.setLayout (new FlowLayout (FlowLayout.LEFT))
final JComboBox jcb = new JComboBox (lafVector)
jcb.addActionListener (new ActionListener ()
{
@Override
public void actionPerformed ( ActionEvent e )
{
SupportedLaF supportedLaF = ( (SupportedLaF) jcb.getSelectedItem () )
LookAndFeel laf = supportedLaF.laf
try
{
UIManager.setLookAndFeel (laf)
SwingUtilities.updateComponentTreeUI (tc)
if (null != chooser)
{
SwingUtilities.updateComponentTreeUI (chooser)
}
}
catch (UnsupportedLookAndFeelException exc)
{
( (DefaultComboBoxModel) jcb.getModel () ).removeElement (supportedLaF)
}
}
})
bottomPanel.add (jcb)
bottomPanel.add (jButton)
jPanel.add (bottomPanel)
tc.add (jPanel)
}
private static void loadFileData ( String fileName )
{
Locale locale = new Locale ("en", "US")
Scanner scanner = null
String result = ""
String line = null
LinkedList<String> listInt = new LinkedList<String> ()
LinkedList<String> listDouble = new LinkedList<String> ()
LinkedList<String> listOthers = new LinkedList<String> ()
try
{
scanner = new Scanner (new File (fileName)).useDelimiter ("[\\s\r\n\t\f]+")
while (scanner.hasNext ())
{
line = scanner.next ()
result += line + " "
if (line.matches ("^(\\+|\\-)?[\\d,]+$"))
{
NumberFormat nf = NumberFormat.getInstance (locale)
listInt.add (nf.parse (line).toString ())
}
else if (line.matches ("^[\\dE\\.\\+\\-]+$"))
{
NumberFormat f = NumberFormat.getInstance (locale)
if (f instanceof DecimalFormat)
{
( (DecimalFormat) f ).setDecimalSeparatorAlwaysShown (true)
}
listDouble.add (f.parse (line).toString ())
}
else
{
listOthers.add (line)
}
}
}
catch (Exception e)
{}
scanner.close ()
int max =
listInt.size () > listDouble.size () ? listInt.size () > listOthers.size () ? listInt.size ()
: listOthers.size () : listDouble.size () > listOthers.size () ? listDouble.size ()
: listOthers.size ()
int size1 = listInt.size ()
for ( int i = size1 i < max i++ )
{
listInt.add (" ")
}
int size2 = listDouble.size ()
for ( int i = size2 i < max i++ )
{
listDouble.add (" ")
}
int size3 = listOthers.size ()
for ( int i = size3 i < max i++ )
{
listOthers.add (" ")
}
String reg = "[\\[\\]]"
String intdata = listInt.toString ().replaceAll (reg, "")
String realdata = listDouble.toString ().replaceAll (reg, "")
String otherdata = listOthers.toString ().replaceAll (reg, "")
System.out.println ("Text file: ")
System.out.println (result)
System.out.println ("sumDouble: ")
System.out.println (realdata.replaceAll ("[,\\s]+$", ""))
System.out.println ("sumInt: ")
System.out.println (intdata.replaceAll ("[,\\s]+$", ""))
System.out.println ("sumOther: ")
System.out.println (otherdata.replaceAll ("[,\\s]+$", ""))
String[] ints = intdata.split (",\\s")
String[] reals = realdata.split (",\\s")
String[] others = otherdata.split (",\\s")
data = new String[][] { ints, reals, others }
}
public static void main ( String[] args )
{
loadFileData (FILE_NAME)
TokenCategorizer tc = new TokenCategorizer ("Categories/columns containing tokens")
createList (tc)
createTable (tc)
initOthers (tc)
initFrame (tc)
}
}
首先，循环list或者map再次，就是在循环的时候，把list或者map中的值取出来放到JTable里面
如： for(int i=0i<list.size()i++){
JTable table = new JTable()
.....//这个地方就可以创建JTable的 列和行了，或者你在里面定义好字符串然后在列表外面把他们加进去
}
可以使用Swing的DefaultTableModel类。DefaultTableModel model = new DefaultTableModel()// 新建一个默认数据模型
JTablt table = new JTable(model)// 用数据模型创建JTable，JTable会自动监听到数据模型中的数据改变并显示出来
JScrollPane jsp = new JScrollPane(table)// 用列表创建可滚动的Panel，把这个Panel添加到窗口中
Vector row = new Vector()// 数据行向量，使用它的add()添加元素，比如整数、String、Object等，有几行就new几个行向量
Vector data = new Vector()// 数据行向量集，因为列表不止一行，往里面添加数据行向量，添加方法add(row)
Vector names = new Vector()// 列名向量，使用它的add()方法添加列名
model.setDataVector(Vector data, Vector names)// 设置模型中的元素，它会自动显示在列表中
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