java extends javax.swing.jframe and inputverifier

Question

I have need to extends javax.swing.jframe and inputverifier. Can i resilienza this problema? ?? I try to use more classes But this doesn't work. Can I use a inner class?

Public class framePrincial extends     javax.swing.jframe {
Abstract verifica extends inputverifier  {
}

}

Answer 1

Certainly you can use an inner class. You cannot extend more than one class. You can extend one class and implement as many interfaces as you like. There is no way to tell you a good way to do what you want to do without knowing what you want to do.