Double Cannot Be Dereferenced Java Error
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community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Double cannot be dereferenced? up vote 5 down vote favorite 2 String mins = minsField.getText(); java long cannot be dereferenced int Mins; try { Mins = Integer.parseInt(mins); } catch (NumberFormatException e) { Mins = 0; } double hours = Mins / 60; hours.setText(hoursminsfield); The problem is that Double cannot be dereferenced. How can I fix this problem? Any help will be appriciated java double share|improve this question edited Apr 23 '12 at 2:06 paxdiablo 489k1179701419 asked Apr 23 '12 at 1:58 Daniel Donaldson 28113 What language is this? Javascript? int cannot be dereferenced java meaning –Mark Reed Apr 23 '12 at 2:04 Yeh man its java –Daniel Donaldson Apr 23 '12 at 2:06 12 java != javascript –David Gelhar Apr 23 '12 at 2:07 2 @Daniel, I fail to see how the accepted answer relates to your question at all. You should have asked another question when you fixed the original problem. –paxdiablo Apr 23 '12 at 2:34 If you want to use hours as double, you have to leave int-arithmetic, which is used, if you mix an int with an literal int like 60: double hours = Mins / 60; Use a literal double like 60.0 instead. –user unknown Apr 23 '12 at 3:24 | show 1 more comment 3 Answers 3 active oldest votes up vote 10 down vote accepted EDIT 4/23/12 double cannot be dereferenced is the error some Java compilers give when you try to call a method on a primitive. It seems to me double has no such method would be more helpful, but what do I know. From your code, it seems you think you can copy a text representation of hours into hoursminfield by doing hours.setText(hoursminfield); This has a few errors: 1) hours is a double which is a primitive type, t
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Double Cannot Be Dereferenced Intvalue
Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping http://stackoverflow.com/questions/10273949/double-cannot-be-dereferenced each other. Join them; it only takes a minute: Sign up Double cannot be dereferenced…? up vote 1 down vote favorite import java.awt.Rectangle; import java.util.Comparator; public class RectangleComparator implements Comparator { public int compare(Object object1, Object object2) { Rectangle rec1 = (Rectangle) object1; Rectangle rec2 = (Rectangle) object2; return rec1.getWidth().compareTo(rec2.getWidth()); } } For some reason, I'm getting http://stackoverflow.com/questions/18691643/double-cannot-be-dereferenced the error double cannot be dereferenced. Can anyone help me figure out why? java share|improve this question edited Sep 9 '13 at 4:56 asked Sep 9 '13 at 4:50 user2760309 3314 BTW, it's rarely a good idea to compare float/double values for exact equality. See stackoverflow.com/questions/4915462/… –sleske Sep 9 '13 at 5:00 add a comment| 3 Answers 3 active oldest votes up vote 3 down vote accepted rocketboy is correct with regard to why this is happening. Consider using the Double wrapper class like this new Double(rec1.getWidth()).compareTo(rec2.getWidth()); Only the first value need to be converted to a wrapper Double, the second one will be auto boxed. share|improve this answer answered Sep 9 '13 at 4:56 Thihara 4,99411538 1 You should not use new Double(…) at all. Please get into the habit of using Double.valueOf(…) as this will allow Java to reuse existing objects. Of course that’s even more important for small integers or longs. –Michael Piefel Sep 9 '13 at 6:39 @MichaelPiefel Does this depend o
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