Reflection API Code Samples

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The Reflection API represents or reflects the classes, interfaces, and objects in the Java virtual machine. (JVM¹).

• Arrays
• Examining Classes
• Manipulating Objects

• array2.java creates a 10-long array of Strings and sets location 5 in the array to a string value. The value is retrieved and displayed. For supporting information see Using Java Reflection.
  
  

• constructor1.java determines which constructors are defined in a given class. For supporting information see Using Java Reflection.
  
  
• find1.java determines which data fields are defined in a given class. For supporting information see Using Java Reflection.
  
  
• instance1.java checks to see which objects are instances of a given class. For supporting information see Using Java Reflection.
  
  
• method1.java determines which methods are defined in a given class. For supporting information see Using Java Reflection.
  
  

• field2.java changes the value of data fields in objects. For supporting information see Using Java Reflection.
  
  
• Method interposing example shows how to use the common interface provided by the Proxy class to encode and dispatch a method invocation to another object.
  
  
• method2.java invokes a specific method by its name. For supporting information see Using Java Reflection.
  
  
• constructor2.java finds a constructor that handles the specified parameter types and invokes it to create a new instance of the object. For supporting information see Using Java Reflection.