I have User class with field like login, password etc.
In method i tryed to get acces to field:
preparedStmt.setString(1, User.getid());
but is the error
non static method cannot be referenced from a static context
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Adamo
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Well presumably `User.getId()` is an instance method - you've got to indicate *which* user's ID you want... – Jon Skeet Nov 09 '14 at 09:09
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In future, please search before asking a question - in this case, to find the duplicate I just put the error message into Stack Overflow, and it found *lots* of hits. (This is a fairly common issue.) – Jon Skeet Nov 09 '14 at 09:46
1 Answers
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getid() is not static and therefore can only be called on an instance of User, not on User itself.
User someUser = ...;
preparedStmt.setString(1, someUser.getid());
NPE
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Look on my main method: User us1 = new User("91"); db.setUser(us1); //insert – Adamo Nov 09 '14 at 09:13