字符串数组如何添加元素（2维字符串数组，即object data[][]）？？

Question

已定义Object data[][]={ 
 {"设备一","2011-2-3","12:10:00","3.4","2.3","正常","12"},
{"设备二","2011-2-3","12:10:00","3.4","2.3","正常","12"},  
  };
后面的程序中要实在循环中添加类似于{"设备二","2011-2-3","12:10:00","3.4","2.3","正常","12"}这样的元素，不知道怎么添加。。
各位高手指点指点啊。。  

Answer 1

这样的话当然是用list方便把你的数据封装成对象然后 
list dataList = new ArrayList...添加数据就是
dataList .add.......

Answer 2

你已经将它固定了 你要用Listimport java.util.*;
public class TestAddElement {
    public static void main(String[] args) {
List<String[]> list = new ArrayList<String[]>();
list.add(new String[]{"设备一","2011-2-3","12:10:00","3.4","2.3","正常","12"});
list.add(new String[]{"设备二","2011-2-3","12:10:00","3.4","2.3","正常","12"});
list.add(new String[]{"设备三","2011-2-3","12:10:00","3.4","2.3","正常","12"});
list.add(new String[]{"设备四","2011-2-3","12:10:00","3.4","2.3","正常","12"});
list.add(new String[]{"设备五","2011-2-3","12:10:00","3.4","2.3","正常","12"});
list.add(new String[]{"设备六","2011-2-3","12:10:00","3.4","2.3","正常","12"});
//可以放心大胆的继续添加
for(int i=0; i<list.size(); i++) {
    String[] fields = (String[])list.get(i);
    System.out.println(Arrays.toString(fields));
}

    }
}
/*结果：
 [设备一, 2011-2-3, 12:10:00, 3.4, 2.3, 正常, 12]
 [设备二, 2011-2-3, 12:10:00, 3.4, 2.3, 正常, 12]
 [设备三, 2011-2-3, 12:10:00, 3.4, 2.3, 正常, 12]
 [设备四, 2011-2-3, 12:10:00, 3.4, 2.3, 正常, 12]
 [设备五, 2011-2-3, 12:10:00, 3.4, 2.3, 正常, 12]
 [设备六, 2011-2-3, 12:10:00, 3.4, 2.3, 正常, 12]
*/t

Answer 3

主要是我弄Object data是用来构建和填充表格的。。如下：Object data[][]={{"设备一","2011-2-3","12:10:00","3.4","2.3","正常","12"},};
String columnNames[]={"设备","日期","时间","电压","电流","运行状态","累计故障次数"};
JTable table=new JTable(data,columnNames);要是换成list了就不会用了。。怎么办呢？

Answer 4

想办法计算出行数和列数。类似下面的写法
class DisplayDialog extends JDialog {
Statement stmt = null;
DisplayDialog(JFrame f , String title, ScoreManagementSystem sms , String sql, Object[] name ) {
super(f , title);
this.setBounds(200, 200, 400, 500);
this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
this.setVisible(true);
try {
stmt = sms.conn.createStatement(
ResultSet.TYPE_SCROLL_INSENSITIVE,// 对滚动不敏感，结果集可滚来滚去
ResultSet.CONCUR_READ_ONLY);// 只能够读取里边的内容，
ResultSet rs = stmt.executeQuery(sql); rs.last();// 指到定位到最后一行
int row = rs.getRow();// 获得总行数
rs.beforeFirst();// 定位到开始
ResultSetMetaData rsmd1 = rs.getMetaData();// 计算字段个数
int col = rsmd1.getColumnCount(); // 计算字段个数
Object a[][] = new Object[row][col];
JTable table = new JTable(a, name);
for (int index = 0; rs.next(); index++)
for (int j = 0; j < col; j++)
a[index][j] = rs.getString(j + 1);
getContentPane().removeAll();
add(new JScrollPane(table), BorderLayout.CENTER);
validate();
rs.close();
} catch (SQLException e) {
System.out.println("SQL语句无效");
add(new JLabel("SQL语句无效"));
e.printStackTrace();
}
}

}

Answer 5

也可以这样，如不需顺序，试试HashSet:
import java.util.*;
public class Test{
public static void main(String[] args){
List<List> list = new ArrayList<List>();
    list.add(Arrays.asList(new String[]{"设备一","2011-2-3","12:10:00","3.4","2.3","正常","12"}));
    list.add(Arrays.asList(new String[]{"设备二","2011-2-3","12:10:00","3.4","2.3","正常","12"}));
System.out.println(list);

HashSet<String[]> hs = new HashSet<String[]>();
    hs.add(new String[]{"设备一","2011-2-3","12:10:00","3.4","2.3","正常","12"});
    hs.add(new String[]{"设备二","2011-2-3","12:10:00","3.4","2.3","正常","12"});
for(String[] h:hs)
System.out.println(Arrays.toString(h));
}
}

Answer 6

怎么不早说呢，JTable也不是很熟悉，修修补补，终于得来段算是简单明了的JTable例子：
import java.util.*;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;public class JTableTest {
public static void main(String[] args) {
   JFrame frame = new JFrame("JTable测试"); 
   frame.setSize(300,250);
   Vector<String> title = new Vector<String>();
   title.add("姓名");
   title.add("学号");
   title.add("性别");
   Vector<Vector> list = new Vector<Vector>();
   Vector<String> obj1 = new Vector<String>(){{add("张三");add("1001");add("男");}};
   Vector<String> obj2 = new Vector<String>(){{add("李四");add("1002");add("女");}};
   Vector<String> obj3 = new Vector<String>(){{add("王五");add("1003");add("男");}};
   list.add(obj1);
   list.add(obj2);
   list.add(obj3);
   JTable table = new JTable(list,title);
   JScrollPane scroll = new JScrollPane(table);
   frame.add(scroll);
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   frame.setVisible(true);
}
}