UPDATE SQLITE with multiple column values

08-22 11:37:33.157  23019-23019/com.example.sasankapabasara.pdmaplication E/SQLiteLog﹕ (1) near ",": syntax error

08-22 11:37:33.157  23019-23019/com.example.sasankapabasara.pdmaplication D/AndroidRuntime﹕ Shutting down VM

08-22 11:37:33.157  23019-23019/com.example.sasankapabasara.pdmaplication W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x41ff6930)

08-22 11:37:33.177  23019-23019/com.example.sasankapabasara.pdmaplication E/AndroidRuntime﹕ FATAL EXCEPTION: main



    android.database.sqlite.SQLiteException: near ",": syntax error (code 1): , while compiling: UPDATE gpa SET grade = A+ , gpa = 4.0 WHERE subid = 1