package RegisterAndLogin;
import javax.swing.table.*;
 class MytableModel extends AbstractTableModel {

 final String[] columnNames={"商品ID","賣方ID","商品名","單價","產地","簡介","數量","單位"};
 final Object[][]data=new Object [20][8]; 
 public MytableModel()
 {
	 for(int i=0;i<20;i++)		 
	   for(int j=0;j<8;j++)
		 data[i][j]="";	   
	 
	 
 }
 public int getColumnCount() {
     return columnNames.length;
 }
 
 public int getRowCount() {
     return data.length;
 }

 public String getColumnName(int col) {
     return columnNames[col];
 }

 public Object getValueAt(int row, int col) {
     return data[row][col];
 }
 public void setValueAt(Object value,int row,int col)
 {
	 data[row][col]=value;
	 fireTableCellUpdated(row, col);
 }
 public boolean isCellEditable(int row, int col) {
     //Note that the data/cell address is constant,
     //no matter where the cell appears onscreen.
     if (col < 2) { 
         return false;
     } else {
         return true;
     }
 }
}