iceburn questions

• Java: Should I always replace Arrays for ArrayLists?
• How can I improve this code?
• Java: What's the difference between ActionEvent and ItemEvent on a JRadioButton?
• Best way to measure Memory Usage of a Java Program?
• Is it possible to vertically center multiple columns in a table?
• When should I use a TreeMap over a PriorityQueue and vice versa?

iceburn answers