private static String escapeHtmlChars ( String s ) { for ( int i = 0 ; i < s . length ( ) ; i ++ ) { char ch = s . charAt ( i ) ; switch ( ch ) { // only start building a new string if we need to case ' ' : case ' ' : case ' ' : StringBuilder sb = new StringBuilder ( s . substring ( 0 , i ) ) ; for ( ; i < s . length ( ) ; i ++ ) { ch = s . charAt ( i ) ; switch ( ch ) { case ' ' : sb . append ( "&lt;" ) ; break ; case ' ' : sb . append ( "&gt;" ) ; break ; case ' ' : sb . append ( "&amp;" ) ; break ; default : sb . append ( ch ) ; break ; } } return sb . toString ( ) ; } } return s ; }
Given a string escape all special html characters and return the result .