setValueAt报错！！！

[盒子danbo]

	public void setValueAt(Object value,int row1,int col1 )
			{
				if(data[0][col]instanceof Integer&&!(value instanceof Integer))
				{
					try
					{
						data[row][col]=new Integer(value.toString());
						fireTableCellUpdated(row,col);
					}

at JTableTest$MyTableModel.isCellEditable(JTableTest.java:103)
at javax.swing.JTable.isCellEditable(JTable.java:1949)
at javax.swing.JTable.editCellAt(JTable.java:2676)
at javax.swing.plaf.basic.BasicTableUI$Handler.adjustFocusAndSelection(BasicTableUI.java:955)
at javax.swing.plaf.basic.BasicTableUI$Handler.mousePressed(BasicTableUI.java:922)
at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:222)
at java.awt.Component.processMouseEvent(Component.java:5498)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3135)
at java.awt.Component.processEvent(Component.java:5266)
at java.awt.Container.processEvent(Container.java:1966)
at java.awt.Component.dispatchEventImpl(Component.java:3968)
at java.awt.Container.dispatchEventImpl(Container.java:2024)
at java.awt.Component.dispatchEvent(Component.java:3803)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3889)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822)
at java.awt.Container.dispatchEventImpl(Container.java:2010)
at java.awt.Window.dispatchEventImpl(Window.java:1778)
at java.awt.Component.dispatchEvent(Component.java:3803)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
Exception in thread "AWT-EventQueue-0" java.lang.Error: 无法解析的编译问题：
void 对于变量 setValueAt 是无效类型
标记“(”上有语法错误，应为 ;
标记“,”上有语法错误，应为 ;
标记“,”上有语法错误，应为 ;
标记“)”上有语法错误，应为 ;