C Files

Run javah with argument the full class name
```
javah sun.awt.motif.MComboBoxPeer
```
This will generate a header file
```
sun_awt_motif_MComboBoxPeer.h
```

This provides a C prototype for all methods still virtual or native.

sun_awt_motif_MComboBoxPeer_create()
sun_awt_motif_MComboBoxPeer_addItem()
sun_awt_motif_MComboBoxPeer_getString()

Write a C file awt_ComboBox.c defining all these functions

Slide 143