title: how to search keyword/specfic word from text file?
body: <p>how can search specific word from file. like if we have have a text file and in filem, text is arranged line by line like...</p>
  
  <p>The Apple is sweet.</p>
  
  <p>the color of car is red.</p>
  
  <p>the sky is blue..</p>
  
  <p>Now user want to search car or red...
  and input through text box so how can we search from file that match input text from file text and show reslut.
  it may be possible that input word is more than 1 time in document then reslut also show how many times it appear in file.
   so how can we implement this....</p>