数组不好控制,建议继承AbstractTableModel后拓展import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.*;import javax.swing.*; import javax.swing.table.*;/** * JTable的例子 */ public class Test { private JFrame frame = null; private JTable table = null; private Table_Model model = null; private JScrollPane s_pan = null; private JButton button_1 = null, button_2 = null; public Test() { frame = new JFrame("Test"); button_1 = new JButton("清除数据"); button_1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { removeData(); } }); button_2 = new JButton("添加数据"); button_2.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { addData(); } }); model = new Table_Model(20); table = new JTable(model); table.setBackground(Color.white); String [] age = {"16", "17", "18", "19", "20", "21", "22"}; JComboBox com = new JComboBox(age); TableColumnModel tcm = table.getColumnModel(); tcm.getColumn(3).setCellEditor(new DefaultCellEditor(com)); s_pan = new JScrollPane(table); frame.getContentPane().add(s_pan, BorderLayout.CENTER); frame.getContentPane().add(button_1, BorderLayout.NORTH); frame.getContentPane().add(button_2, BorderLayout.SOUTH); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setSize(300, 200); frame.setVisible(true); } private void addData() { model.addRow("李逵", true, "19"); table.updateUI(); // 刷新,将改变后的内容显示出来 } private void removeData() { model.removeRows(0, model.getRowCount()); table.updateUI(); // 刷新,将改变后的内容显示出来 } public static void main(String args[]) { new Test(); }} class Table_Model extends AbstractTableModel { private Vector content = null; private String[] title_name = { "ID", "姓名", "性别", "年龄" }; public Table_Model() { content = new Vector(); } public Table_Model(int count) { content = new Vector(count); } public void addRow(String name, boolean sex, String age) { Vector v = new Vector(4); v.add(0, new Integer(content.size())); v.add(1, name); v.add(2, new Boolean(sex)); v.add(3, age); content.add(v); } public void removeRow(int row) { content.remove(row); } public void removeRows(int row, int count) { for (int i = 0; i < count; i++) { if (content.size() > row) { content.remove(row); } } }
/** * 让表格中每个值都可修改,但需要setValueAt(Object value, int row, int col)方法配合才能让修改生效 */ public boolean isCellEditable(int rowIndex, int columnIndex){ return true; }
/** * 使修改的内容生效 */ public void setValueAt(Object value, int row, int col){ ((Vector) content.get(row)).remove(col); ((Vector) content.get(row)).add(col, value); this.fireTableCellUpdated(row, col); } public String getColumnName(int col) { return title_name[col]; } public int getColumnCount() { return title_name.length; } public int getRowCount() { return content.size(); } public Object getValueAt(int row, int col) { return ((Vector) content.get(row)).get(col); }
/** * 返回数据类型 */ public Class getColumnClass(int col){ return getValueAt(0, col).getClass(); }}
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.*;import javax.swing.*;
import javax.swing.table.*;/**
* JTable的例子
*/
public class Test {
private JFrame frame = null; private JTable table = null; private Table_Model model = null; private JScrollPane s_pan = null; private JButton button_1 = null, button_2 = null; public Test() {
frame = new JFrame("Test");
button_1 = new JButton("清除数据");
button_1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
removeData();
}
});
button_2 = new JButton("添加数据");
button_2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
addData();
}
});
model = new Table_Model(20);
table = new JTable(model);
table.setBackground(Color.white);
String [] age = {"16", "17", "18", "19", "20", "21", "22"};
JComboBox com = new JComboBox(age);
TableColumnModel tcm = table.getColumnModel();
tcm.getColumn(3).setCellEditor(new DefaultCellEditor(com)); s_pan = new JScrollPane(table); frame.getContentPane().add(s_pan, BorderLayout.CENTER);
frame.getContentPane().add(button_1, BorderLayout.NORTH);
frame.getContentPane().add(button_2, BorderLayout.SOUTH);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(300, 200);
frame.setVisible(true); } private void addData() {
model.addRow("李逵", true, "19");
table.updateUI(); // 刷新,将改变后的内容显示出来
} private void removeData() {
model.removeRows(0, model.getRowCount());
table.updateUI(); // 刷新,将改变后的内容显示出来
} public static void main(String args[]) {
new Test();
}}
class Table_Model extends AbstractTableModel { private Vector content = null; private String[] title_name = { "ID", "姓名", "性别", "年龄" }; public Table_Model() {
content = new Vector();
} public Table_Model(int count) {
content = new Vector(count);
} public void addRow(String name, boolean sex, String age) {
Vector v = new Vector(4);
v.add(0, new Integer(content.size()));
v.add(1, name);
v.add(2, new Boolean(sex));
v.add(3, age);
content.add(v);
} public void removeRow(int row) {
content.remove(row);
} public void removeRows(int row, int count) {
for (int i = 0; i < count; i++) {
if (content.size() > row) {
content.remove(row);
}
}
}
/**
* 让表格中每个值都可修改,但需要setValueAt(Object value, int row, int col)方法配合才能让修改生效
*/
public boolean isCellEditable(int rowIndex, int columnIndex){
return true;
}
/**
* 使修改的内容生效
*/
public void setValueAt(Object value, int row, int col){
((Vector) content.get(row)).remove(col);
((Vector) content.get(row)).add(col, value);
this.fireTableCellUpdated(row, col);
} public String getColumnName(int col) {
return title_name[col];
} public int getColumnCount() {
return title_name.length;
} public int getRowCount() {
return content.size();
} public Object getValueAt(int row, int col) {
return ((Vector) content.get(row)).get(col);
}
/**
* 返回数据类型
*/
public Class getColumnClass(int col){
return getValueAt(0, col).getClass();
}}