I found a way to do it:
Custom ComboBox with Image : ComboBoxSwing JFCJava
That's covered in the basic tutorials: How to Use Combo Boxes (The Java™ Tutorials > Creating a GUI With JFC/Swing > Using Swing Components)
Thanks really appreciate the links guys.
Though i'm still struggling with it to be honest; i just started learning java swing.
Maybe someone could be kind enough to try and explain how i would go about this in my program because i feel the use of the array already in my program would change how i link the pictures (i think).
Did you read the tutorial? What are you confused about? What did you try?
Please post an SSCCE (not your whole program) that demonstrates exactly what you've tried, and we'll go from there.