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import java.awt.BorderLayout;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
public class GetValueAtLogic extends JFrame {
public GetValueAtLogic() {
JTable table = new JTable(new CoordinateTableModel());
getContentPane().add(new JScrollPane(table), BorderLayout.CENTER);
pack();
}
public static void main(String arg[]) {
GetValueAtLogic ex1 = new GetValueAtLogic();
ex1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
ex1.setVisible(true);
}
}
class CoordinateTableModel extends AbstractTableModel {
private int[] x = { 2, 3, 5, 7, 11, 13, 17, 19 }; // x is prime < 20
public int getColumnCount() {
return 2;
}
public int getRowCount() {
return x.length;
}
public Object getValueAt(int r, int c) {
return (c == 0) ? new Integer(x[r]) : new Integer(2 * x[r] + 1);
}
public String getColumnName(int c) {
return (c == 0) ? "x" : "2x+1";
}
}
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