不能在月食

Question

編輯JTable中單元格當我編寫以下Stock.java文件

package com.zawlatt.ui; 
import java.awt.EventQueue; 
import javax.swing.*; 
import com.zawlatt.model.*; 

public class Stock 
{ 

private JFrame frame; 
private JTextField textField; 
private JTextField textField_1; 
private JTable table; 

/** 
* Launch the application. 
*/ 
public static void main(String[] args) { 
    EventQueue.invokeLater(new Runnable() { 
     public void run() { 
      try { 
       Stock window = new Stock(); 
       window.frame.setVisible(true); 
      } catch (Exception e) { 
       e.printStackTrace(); 
      } 
     } 
    }); 
} 

/** 
* Create the application. 
*/ 
public Stock() { 
    initialize(); 
} 

/** 
* Initialize the contents of the frame. 
*/ 
private void initialize() { 
    frame = new JFrame(); 
    frame.setBounds(100, 100, 688, 514); 
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    frame.getContentPane().setLayout(null); 

    JLabel lblSearchItemBy = new JLabel("Search Item by Item ID"); 
    lblSearchItemBy.setHorizontalAlignment(SwingConstants.CENTER); 
    lblSearchItemBy.setBounds(27, 58, 167, 23); 
    frame.getContentPane().add(lblSearchItemBy); 

    textField = new JTextField(); 
    textField.setBounds(212, 58, 114, 23); 
    frame.getContentPane().add(textField); 
    textField.setColumns(10); 

    JLabel label = new JLabel("Search Item by Item ID"); 
    label.setHorizontalAlignment(SwingConstants.CENTER); 
    label.setBounds(358, 58, 167, 23); 
    frame.getContentPane().add(label); 

    textField_1 = new JTextField(); 
    textField_1.setColumns(10); 
    textField_1.setBounds(543, 58, 114, 23); 
    frame.getContentPane().add(textField_1); 

    String [] colNames = {"#", "Item", "Description", "Original Qty","Last Qty ", "Original Price", "Sale Price" , "Recieved Date"}; 
    StockItem [][] stockData = new StockItem[15][8]; 
    for(int i=0; i<stockData.length;i++) 
    { 
     for(int j=0 ; j<stockData[i].length;j++) 
     { 

      stockData[i][j]=new StockItem(); 
     } 
    } 
    table = new JTable(stockData,colNames); 
    table.setEnabled(true); 
    //table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF); 

    JScrollPane pane = new JScrollPane(table , ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS , ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS); 
    pane.setBounds(35, 93, 622, 274); 
    frame.getContentPane().add(pane); 
} 

}

我有以下例外！

Exception in thread "AWT-EventQueue-0" java.lang.ArrayStoreException: java.lang.String 
at javax.swing.JTable$1.setValueAt(JTable.java:693) 
at javax.swing.JTable.setValueAt(JTable.java:2740) 
at javax.swing.JTable.editingStopped(JTable.java:4725) 
at javax.swing.AbstractCellEditor.fireEditingStopped(AbstractCellEditor.java:142) 
at javax.swing.DefaultCellEditor$EditorDelegate.stopCellEditing(DefaultCellEditor.java:366) 
at javax.swing.DefaultCellEditor.stopCellEditing(DefaultCellEditor.java:231) 
at javax.swing.JTable$GenericEditor.stopCellEditing(JTable.java:5480) 
at javax.swing.plaf.basic.BasicTableUI$Handler.mousePressed(BasicTableUI.java:1007) 
at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:280) 
at java.awt.Component.processMouseEvent(Component.java:6285) 
at javax.swing.JComponent.processMouseEvent(JComponent.java:3267) 
at java.awt.Component.processEvent(Component.java:6053) 
at java.awt.Container.processEvent(Container.java:2045) 
at java.awt.Component.dispatchEventImpl(Component.java:4649) 
at java.awt.Container.dispatchEventImpl(Container.java:2103) 
at java.awt.Component.dispatchEvent(Component.java:4475) 
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4633) 
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4294) 
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4227) 
at java.awt.Container.dispatchEventImpl(Container.java:2089) 
at java.awt.Window.dispatchEventImpl(Window.java:2587) 
at java.awt.Component.dispatchEvent(Component.java:4475) 
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:675) 
at java.awt.EventQueue.access$300(EventQueue.java:96) 
at java.awt.EventQueue$2.run(EventQueue.java:634) 
at java.awt.EventQueue$2.run(EventQueue.java:632) 
at java.security.AccessController.doPrivileged(Native Method) 
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:108) 
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:119) 
at java.awt.EventQueue$3.run(EventQueue.java:648) 
at java.awt.EventQueue$3.run(EventQueue.java:646) 
at java.security.AccessController.doPrivileged(Native Method) 
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:108) 
at java.awt.EventQueue.dispatchEvent(EventQueue.java:645) 
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275) 
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200) 
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190) 
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:185) 
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:177) 
at java.awt.EventDispatchThread.run(EventDispatchThread.java:138) 

Answer 1

你編寫的代碼中，數據模型沒有正確填寫：

String [] colNames = {"#", "Item", "Description", "Original Qty","Last Qty ", "Original Price", "Sale Price" , "Recieved Date"}; 
StockItem [][] stockData = new StockItem[15][8]; 
for(int i=0; i<stockData.length;i++) 
{ 
    for(int j=0 ; j<stockData[i].length;j++) 
    { 
     fill the correct data----->stockData[i][j]=new StockItem(); 
    } 
} 

更改上述somelike如下：

for(int i=0; i<stockData.length;i++) 
{  
    StockItem item = new StockItem(); 
    stockData[i][0]= item.getId(); 
    stockData[i][1]= item.getItem(); 
    . 
    . 
    stockData[i][7]= item.getReceiveDate(); 
}