question: public MessageTokenizer ( IDiscordClient client , String content ) { if ( content == null ) throw new IllegalArgumentException ( "Content cannot be null!" ) ; if ( content . length ( ) == 0 ) throw new IllegalArgumentException ( "Content must have length!" ) ; if ( client == null ) throw new IllegalArgumentException ( "Client cannot be null!" ) ; this . content = content ; this . client = client ; stepForward ( 0 ) ; }
target:  Initializes with the string contents.