creat text tab option request toolbar argo param titl titl param toolbar toolbar need tab text titl toolbar titl set icon arrow icon set layout border layout text area set font font monospac font plain text area set tab size add scroll pane text area border layout center text area document add document listen toolbar request creat toolbar toolbar tool bar factori collect list creat tool bar toolbar set orient swing constant horizont toolbar set floatabl toolbar set titl add toolbar border layout north 