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Java Card™ Technology for Smart Cards by Zhiqun Chen

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Chapter 4. Java Card Objects

In Java Card technology, the JCRE and applets create objects to represent, store, and manipulate data. Applets are written by using the Java programming language. Runnable applets on the card are objects of applet classes.

Objects in the Java Card platform are subject to the Java programming rules:

  • All the objects on the Java Card platform are instances of classes or array types, which have the same root class java.lang.Object.

  • Fields in a new object or components in a new array are set to their default values (zero, null, or false) unless they are initialized to some other values in the constructor.

Java Card technology supports both persistent and transient objects. However, the concepts of persistent and transient objects ...

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