question: public static String toStringPretty ( JsonObject jsonObj , int level ) { StringBuffer buf = new StringBuffer ( ) ; buf . append ( "{" ) ; buf . append ( fieldsToStringPretty ( jsonObj , level + 1 ) ) ; buf . append ( "}" ) ; return buf . toString ( ) ; }
target:  Returns a pretty printed string of the given Json object, indented at the given level.