Use if in velocity

This example shows you how to use if statement in velocity. Description of methods used in the example given below....

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

#set($list = ["A", "B", "C", "D", "E"]): This is a statement named 'set', generally begins with # character. Here we have assign the list with character $.

The #if allows for text on the conditional that the if statement is true.

Condition.java

package velocity.conditionals;



import java.io.*;

import java.util.*;

import org.apache.velocity.*;

import org.apache.velocity.app.*;



public class Condition {

  public static void main(String[] args) throws Exception {

  Velocity.init();



  Template template = 

Velocity.getTemplate("./src/velocity/conditionals/if.vm");



  VelocityContext context = new VelocityContext();

  

 

  Writer writer = new StringWriter();

  template.merge(context, writer);



  System.out.println(writer);

  }

}

if.vm

#set($list = ["A", "B", "C", "D", "E"])

#foreach($item in $list)

#if($velocityCount <= 3)

$item

#end

#end

Output :

A

B

C

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