question: @ SuppressWarnings ( "StringConcatenationInsideStringBufferAppend" ) public long insertWithOnConflict ( String table , String nullColumnHack , ContentValues initialValues , @ ConflictAlgorithm int conflictAlgorithm ) { acquireReference ( ) ; try { StringBuilder sql = new StringBuilder ( ) ; sql . append ( "INSERT" ) ; sql . append ( CONFLICT_VALUES [ conflictAlgorithm ] ) ; sql . append ( " INTO " ) ; sql . append ( table ) ; sql . append ( '(' ) ; Object [ ] bindArgs = null ; int size = ( initialValues != null && initialValues . size ( ) > 0 ) ? initialValues . size ( ) : 0 ; if ( size > 0 ) { bindArgs = new Object [ size ] ; int i = 0 ; for ( Map . Entry < String , Object > entry : initialValues . valueSet ( ) ) { sql . append ( ( i > 0 ) ? "," : "" ) ; sql . append ( entry . getKey ( ) ) ; bindArgs [ i ++ ] = entry . getValue ( ) ; } sql . append ( ')' ) ; sql . append ( " VALUES (" ) ; for ( i = 0 ; i < size ; i ++ ) { sql . append ( ( i > 0 ) ? ",?" : "?" ) ; } } else { sql . append ( nullColumnHack + ") VALUES (NULL" ) ; } sql . append ( ')' ) ; SQLiteStatement statement = new SQLiteStatement ( this , sql . toString ( ) , bindArgs ) ; try { return statement . executeInsert ( ) ; } finally { statement . close ( ) ; } } finally { releaseReference ( ) ; } }
target:  General method for inserting a row into the database.