spider-web/IntTextField.java

   1 import java.awt.*;
   2
   3 public class IntTextField extends TextField
   4 {
   5
   6         public IntTextField()
   7         {
   8                 ;
   9         }
  10
  11         public IntTextField(String s)
  12         {
  13                 this.setText(s);
  14         }
  15
  16         public boolean isValid()
  17         {
  18                 int value;
  19                 try
  20                 {
  21                         value = Integer.valueOf(getText().trim()).intValue();
  22
  23                 }
  24                 catch (NumberFormatException e)
  25                 {
  26                         requestFocus();
  27                         return false;
  28                 }
  29                 return true;
  30         }
  31
  32         public int getValue()
  33         {
  34                 return Integer.parseInt(getText().trim(),10);
  35         }
  36 }