From your example.
The:
private name first_name;
Should be:
private String first_name:
The same goes for last_name:
private String last_name;
And getFirst_name() and getLast_name() should also retturn String.
And you should start class names with uppercase. It's a java naming convention .
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.