Java/Velocity/Velocity Range

For each loop controled by Range function

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import java.io.StringWriter;
import java.io.Writer;
import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.Velocity;
import org.apache.velocity.tools.generic.RenderTool;
public class VMDemo {
  public static void main(String[] args) throws Exception {
    Velocity.init();
    Template t = Velocity.getTemplate("./src/VMDemo.vm");
    VelocityContext ctx = new VelocityContext();
    Writer writer = new StringWriter();
    t.merge(ctx, writer);
    System.out.println(writer);
  }
}
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#foreach($number in [1..5])
          Current Index: $number
#end

Range set

import java.io.StringWriter;
import java.io.Writer;
import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.Velocity;
import org.apache.velocity.tools.generic.IteratorTool;
public class VMDemo {
  public static void main(String[] args) throws Exception {
    Velocity.init();
    Template t = Velocity.getTemplate("./src/demo.vm");
    VelocityContext ctx = new VelocityContext();
    Writer writer = new StringWriter();
    t.merge(ctx, writer);
    System.out.println(writer);
  }
}
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#set( $arr = [0..5] )
#foreach( $i in $arr )
   $i
#end

Range with negative index

import java.io.StringWriter;
import java.io.Writer;
import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.Velocity;
import org.apache.velocity.tools.generic.IteratorTool;
public class VMDemo {
  public static void main(String[] args) throws Exception {
    Velocity.init();
    Template t = Velocity.getTemplate("./src/demo.vm");
    VelocityContext ctx = new VelocityContext();
    Writer writer = new StringWriter();
    t.merge(ctx, writer);
    System.out.println(writer);
  }
}
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#foreach( $bar in [2..-2] )
  $bar
#end

Render tool: length(), toString(), toLowerCase(), toUpperCase()

import java.io.StringWriter;
import java.io.Writer;
import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.Velocity;
import org.apache.velocity.tools.generic.RenderTool;
public class RenderToolExample {
  public static void main(String[] args) throws Exception {
    Velocity.init();
    Template t = Velocity.getTemplate("./src/renderTool.vm");
    VelocityContext ctx = new VelocityContext();
    ctx.put("render", new RenderTool());
    ctx.put("str", new String("The One Ring"));
    ctx.put("ctx", ctx);
    Writer writer = new StringWriter();
    t.merge(ctx, writer);
    System.out.println(writer);
  }
}
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#set($methods = ["length()", "toString()", "toLowerCase()", "toUpperCase()"])
#set($name = "$str")
#foreach($method in $methods)
   $render.eval($ctx, "${name}.$method")
#end