Use if in velocity

This example shows you how to use if statement in velocity.

Use if in velocity

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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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