1. Development Kit User Guide
  2. Setup, Samples and Tools
  3. Running the Samples
  4. Running the classic_applets Samples
  5. StringHandlingApp Sample

StringHandlingApp Sample

The StringHandlingApp sample demonstrates how annotations and string utility methods for the Java Card platform are used and showcases the use of:

  • Annotations in javacardx.annotations.StringDef and javacardx.annotations.StringPool

  • String utility methods defined in javacardx.framework.string.StringUtil

This sample also demonstrates how two applets can have different contexts but both access the same string constant from a library.

The sample is composed of two applets (StringHandlingApp and StringUtilApp) and two libraries (StringHandlingLib and StringHandlingLibLocal). The libraries use string annotations to define string constants. The two applets use annotations to define their own set of string constants and to import string constants from the libraries.

In this sample, an applet such as StringHandlingApp uses string constants that it imports from one library, StringHandlingLibLocal, that are in turn imports of constants from another library, StringHandlingLib.

Follow one of these sets of instructions to run this sample: