Description: The Java Developer Connection (JDC) recently asked its readers \"Do you have a question about Java Card technology, the Java technology for smart cards?\" The JDC took the best questions to Zhiqun Chen, a Java Card Technology expert, and a key member of Sun\'s Java Card engineering team. Here are her answers. JDC: What is a smart card? ZC: Smart cards are often called chip cards, or integrated circuit (IC) cards.