The Java Developers Almanac 1.4

e64. Listing the Interfaces That a Class Implements

    Class cls = java.lang.String.class;
    Class[] intfs = cls.getInterfaces();
    // [java.lang.Comparable, java.lang.CharSequence, java.io.Serializable]
    
    // The interfaces for a primitive type is an empty array
    cls = int.class;
    intfs = cls.getInterfaces();     // []

Related Examples

e59. Getting a Class Object
e60. Getting the Name of a Class Object
e61. Determining If a Class Object Represents a Class or Interface
e62. Getting the Superclass of an Object
e63. Getting the Superclass of a Class Object
e65. Listing the Interfaces That an Interface Extends
e66. Getting the Package of a Class
e67. Determining from Where a Class Was Loaded
e68. Loading a Class That Is Not on the Classpath
e69. Dynamically Reloading a Modified Class

See also: Arrays    Assertions    Commands    Numbers    Objects    Strings    System Properties    Threads

© 2002 Addison-Wesley.