java如何从抽象表中删除一行?
我正在一个按钮中尝试这段代码,当按下它时,它将删除一行,但当它试图删除该行时,我得到一个错误。有什么想法吗
public void actionPerformed(ActionEvent e)
{
int searchedId = 1001;//ID of the product to remove from the table
int row = -1;//index of row or -1 if not found
//search for the row based on the ID in the first column
for(int i=0;i<HireTable.getRowCount();++i)
if(HireTable.getValueAt(i, 0).equals(searchedId)){
row = i;
break;
}
if(row != -1){
HireTable.remove(row);//remove row
System.out.println("yes");
}else{
//not found
System.out.println("no");
hireStats.fireTableDataChanged();
}
}
});
堆栈跟踪
Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: Array index out of range: 0
at java.awt.Container.remove(Container.java:1195)
at DataManager$2.actionPerformed(DataManager.java:155)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.JToggleButton$ToggleButtonModel.setPressed(JToggleButton.java:308)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6505)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3320)
at java.awt.Component.processEvent(Component.java:6270)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:708)
at java.awt.EventQueue$4.run(EventQueue.java:706)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
# 1 楼答案
这个答案更多的是关于如何阅读异常消息,但我认为你们和其他人会发现它很有用
ArrarIndexOutOfBound
异常非常有用,因为异常消息会告诉我们使用的索引以及导致错误的确切代码行。在发布的例外情况中,我们看到:这告诉我们两件重要的事情:
remove
方法引发的。没有SSCCE,我只能推测HireTable
是一个JTable
(扩展容器)。在JTable上调用继承的remove方法没有任何意义,因为表不“包含”行,例如,JPanel
可以包含许多按钮李>要删除一行,我们需要使用TableModel。
DefaultTableMode
包含一个removeRow方法。像这样的方法可以奏效: