InvokeMethodDynamically11Example -- invokes a method based on run-time information in strings.
To see this example in action:
  1. Compile the Java source file, InvokeMethodDynamically11Example.java: 
    	javac InvokeMethodDynamically11Example.java
  2. Run the class: 
    	java InvokeMethodDynamically11Example


Output: 
    s1 = "2"
    s2 = "34"
    s3 = "5678"
The source.