Error Double Cannot Be Dereferenced
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Float Cannot Be Dereferenced Java
you, helping each other. Join them; it only takes a minute: Sign up “double Cannot be Dereferenced” toString() - does this alternative form without errors mean the same thing? up vote 0 down vote favorite In the
Double Cannot Be Dereferenced Compareto
following snippet of code the int returns properly, but when I try doing the same thing with a double NetBeans 8.0.2 complains that "double Cannot be Dereferenced" The non-commented out variables work. The commented out variables are double and do not work. @Override public String toString() { return "[" + getAccountNumber() + "], " + super.toString() + ", " + owner.toString() // Error: "Double Cannot be Dereferenced" why? // + ", " + currentBalance.toString() // double cannot be dereferenced equals + ", " + interestRate.toString() ; } When I rewrite it like this NetBeans doesn't give me an error, but is this effectively the same thing for a double? @Override public String toString() { return "[" + getAccountNumber() + "], " + super.toString() + ", " + owner.toString() // Error: "Double Cannot be Dereferenced" // + ", " + currentBalance.toString() // + ", " + interestRate.toString() // The following seems to work instead: + ", " + Double.toString(currentBalance) + ", " + Double.toString(interestRate) ; } If so, great. No errors. If not, what can I do to make sure that the value of a double returns to the String just as an int would? UPDATE: From the answers I received, it looks like second approach I used works, but the following works just as well: @Override public String toString() { return "[" + getAccountNumber() + "], " + super.toString() + ", " + owner + ", " + currentBalance + ", " + interestRate; } java netbeans return double tostring share|improve this question edited Sep 23 '15 at 14:48 asked Sep 23 '15 at 14:09 Elliander 107111 1 Try String.valueOf(your_double_variable) and same in opposite-direction Double.valueOf(your_String_variable). Ofcourse the values should be convertible. –We are Borg Sep 23 '15 at 14:11 add a comment| 2 Answers 2 active oldest votes up vote 2 down
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Error Int Cannot Be Dereferenced
Discuss the workings and policies of this site About Us Learn error char cannot be dereferenced more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us java long cannot be dereferenced Stack 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, http://stackoverflow.com/questions/32741911/double-cannot-be-dereferenced-tostring-does-this-alternative-form-without helping each other. Join them; it only takes a minute: Sign up java - double cannot be dereferenced up vote 0 down vote favorite I have searched about this error but those didn't solve my problem. field is, JTextfield as: private java.util.List This Site Careers Other all forums Forum: Beginning Java double cannot be dereferenced Accela Moon Greenhorn Posts: 20 posted 12 years ago Hi, can someone briefly explain what does this error mean? And how to solve it? https://coderanch.com/t/396212/java/java/double-dereferenced Thanks. public double price=clientObj.processedObj.price; inputLine = new JTextField (this.price.toString(), 20); inputLine.setBounds (145,210,130,25); inputPanel.add (inputLine); Error: C:\Documents and Settings\Moon\My Documents\Navi Projects\School\ OOPJ Project\Prototype\GPS-Lite v2 Alpha Debugger\SUBSCRIPTION.java:77: double cannot be dereferenced inputLine = new JTextField (this.price.toString(), 20); [ edited to break long lines -ds ] [ April 18, 2004: Message edited by: Dirk Schreckmann ] Mike Gershman Ranch Hand Posts: 1272 posted 12 years ago this.price is a double, cannot be a numeric primitive, not an object. primitives don't have methods. if this.price were a Double, this.price.toString() would work. Mike Gershman SCJP 1.4, SCWCD in process Warren Dew blacksmith Ranch Hand Posts: 1332 2 posted 12 years ago I think you're getting the error because the primitive types - including 'double' - are not objects; they cannot have members, and in particular, don't have a toString() member method. Thus, cannot be dereferenced you can't say price.toString(). Try Double.toString(price). Accela Moon Greenhorn Posts: 20 posted 12 years ago I can use such a method, its listed in the double class in java specs from java webbie, I've imported java.lang.Double.. John Smith Ranch Hand Posts: 2937 posted 12 years ago I can use such a method, its listed in the double class in java specs from java webbie, I've imported java.lang.Double In Java there is double, and there is Double. The former one is a primitive type that has no methods, and the latter is a wrapper class that extends Number and Object, and subsequently has the corresponding methods. In your code, you can use either one, -- but understand the difference. Accela Moon Greenhorn Posts: 20 posted 12 years ago Oh, my bad. I've fixed it, thanks a million! Post Reply Bookmark Topic Watch Topic New Topic Similar Threads Java Double cannot be dereferenced bmi calculation help please! Double compiler error - Help! float cannot be dereferenced constructors with arguments calling constructors with arguments All times are in JavaRanch time: GMT-6 in summer, GMT-7 in winter Contact Us | advertise | mobile view | Powered by JForum | Copyright © 1998-2016 Paul Wheaton