Question

Can someone recommend me a good code/algorithm for string searching?

I’m using Java.

Example: How many times the word apple appears in a text.

Answer 1

You can try calling method countMatches(source,word) of org.apache.commons.lang.StringUtils.

A small example:

      String string = "How arer you? Who are you?";  
      System.out.println(StringUtils.countMatches(string,"you"));

Also look at this thread: Java Counting # of occurrences of a word in a string