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How to define variable in Velocity

                         

This Example shows you how to define a variable in velocity.

Methods used in this example are described below:-
1:- Initialize velocity run time engine through method  init().
2:- Create object of VelocityContext Class.
3:-Create Template class object, Template class object is used for controlling template methods and properties.

template.merge(context, writer): Merge method of the Template class is used here for merging the VelocityContext class object to produce the output. Template class object is used for controlling template methods and properties.

#set($name = "Komal Choudhary"): This is a statement named 'set', generally begins with # character. Here we have assign the list with  character $.

$list: This statement is used for display the value of list variable.

 

SetValue.java:

import java.io.*;

import org.apache.velocity.*;
import org.apache.velocity.app.*;
import org.apache.velocity.tools.generic.RenderTool;

public class SetValue {

  public static void main(String[] argsthrows Exception {
        Velocity.init();
        Template t = Velocity.getTemplate("./src/SetValue.vm");

        VelocityContext context = new VelocityContext();
        
        Writer writer = new StringWriter();
        t.merge(context, writer);

        System.out.println(writer);
  }
}

SetValue.vm:
#set( $name = "Komal Choudhary")

hi, this is $name..!

Output:
hi, this is Komal Choudhary..!

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