java code for Context Chaining

-------------------------------------------------------------------------------------

import java.io.StringWriter;
import java.io.Writer;

import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.Velocity;

public class ContextChaining {

public static void main(String[] args) throws Exception {
Velocity.init();

Template template = Velocity.getTemplate("./src/ContextChaining.vm");

VelocityContext context1 = new VelocityContext();
VelocityContext context2 = new VelocityContext(context1);

context1.put("firstName", "Joe");
context2.put("lastName", "Yin");

Writer writer = new StringWriter();
template.merge(context2, writer);

System.out.println(writer.toString());
}
}
-------------------------------------------------------------------------------------
This is my first name $firstName
This is my last name $lastName

Full Name is $firstName $lastName