question: public void count ( HashMap < String , TreeMap < String , Integer > > table , String suffix , String tag ) { TreeMap < String , Integer > counts = table . get ( suffix ) ; if ( counts == null ) { counts = new TreeMap < String , Integer > ( ) ; table . put ( suffix , counts ) ; } Integer count = counts . get ( tag ) ; if ( count == null ) count = 0 ; counts . put ( tag , count + 1 ) ; }
target:  Increments the count for the given suffix and tag.