question: public static String escapeJavaString ( String s ) { StringBuilder sb = new StringBuilder ( ) ; for ( int i = 0 ; i < s . length ( ) ; i ++ ) { char ch = s . charAt ( i ) ; switch ( ch ) { case '\\' : sb . append ( "\\\\" ) ; break ; case '\n' : sb . append ( "\\n" ) ; break ; case '\r' : sb . append ( "\\r" ) ; break ; case '"' : sb . append ( "\\\"" ) ; break ; default : sb . append ( ch ) ; } } return sb . toString ( ) ; }
target:  Prints a Java escaped string