Validations

Hi

I need to validate blank text field that can accepts only integers.

Here is my code

    if(textField_1.getText().length()==0)

JOptionPane.showMessageDialog(null, "enter text in textfield");

I wrote like this;but it fails to show message for integers.

Please help..

February 21, 2012 at 7:33 PM

if(jTextField1.getText().equals(""))
    {
        JOptionPane.showMessageDialog(null,"Please enter text in the fields","Error",0);
    }