package supermarket;

import javax.swing.table.*;
import java.util.Vector;

public class TableModle
    extends AbstractTableModel {
  String []head;
  Vector vt;
  public TableModle(String []head,Vector vt) {
    this.head = head;
    this.vt = vt;
  }

  /**
   * Returns the number of columns in the model.
   *
   * @return the number of columns in the model
   * @todo Implement this javax.swing.table.TableModel method
   */
  public int getColumnCount() {
    return head.length;//列數
  }

  /**
   * Returns the number of rows in the model.
   *
   * @return the number of rows in the model
   * @todo Implement this javax.swing.table.TableModel method
   */
  public int getRowCount() {
    return vt.size();//行數
  }

  /**
   * Returns the value for the cell at <code>columnIndex</code> and
   * <code>rowIndex</code>.
   *
   * @param rowIndex the row whose value is to be queried
   * @param columnIndex the column whose value is to be queried
   * @return the value Object at the specified cell
   * @todo Implement this javax.swing.table.TableModel method
   */
  public Object getValueAt(int rowIndex, int columnIndex) {
    return ((Vector)vt.get(rowIndex)).get(columnIndex);//單元格的數據
  }

  /**
   *  Returns a default name for the column using spreadsheet conventions:
   *  A, B, C, ... Z, AA, AB, etc.  If <code>column</code> cannot be found,
   *  returns an empty string.
   *
   * @param column  the column being queried
   * @return a string containing the default name of <code>column</code>
   */
  public String getColumnName(int column) {

    return head[column];
  }

}