Use if in velocity

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

Use if in velocity

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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