Workaround for java vs android in slate

android_lexer.rb

require 'rouge'
module Rouge
  module Lexers
    class Android < Rouge::Lexers::Java
      tag 'android'
    end
  end
end

config.rb

# Add this to the top of your config.rb file
require File.expand_path('../android_lexer', __FILE__)

# the rest of your original config.rb file....

index.md

title	language_tabs	toc_footers	includes	layout
Android Demo	java android	<a href='#'>Sign Up for a Developer Key</a> <a href='http://github.com/tripit/slate'>Documentation Powered by Slate</a>	errors	custom_layout

Introduction

Quick proof-of-concept of Android vs Java samples

Hello

These should be highlighted properly:

System.out.println("I am Java!");

System.out.println("Android wins!");

thanks Max for your swift respond & solution.
I followed steps given & my problem fixed.