Java Error No Interface Expected Here

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Interface Expected Here Error Android

Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Why is my program saying there is an error: “interface expected here”? up vote 1 down vote favorite Whenever I type this code, java always underlines no interface expected here intellij the class declaration sentence and the error message is "interface expected here". How can I fix this? package tempconverter; import javax.swing.*; import java.awt.event.*; import java.awt.FlowLayout; import static java.lang.System.out; public class TempConverter extends JFrame implements ActionListener, ActionEvent{ static JFrame f = new JFrame(); static JTextField enter = new JTextField(3); static JButton confirm = new JButton("Convert"); public static void main(String[] args) { f.setLayout(new FlowLayout()); f.setSize(100, 50); f.pack(); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.add(enter); f.add(confirm); f.setVisible(true); } @Override public void actionPerformed (ActionEvent e) { double toConvert = Float.parseFloat(enter.getText()); double inF, inK; inF = toConvert / 5 * 9 + 32; inK = toConvert + 273; out.println("In degrees Fahrenheit, " + toConvert + "degrees Celsius would be " + inF + "degrees."); out.println("In degrees Kelvin, " + toConvert + "degrees Celsius would be " + inK + "degrees."); } } java share|improve this question edited Aug 10 '14 at 8:39 AlexR 82.3k367127 asked Aug 10 '14 at 8:38 Tessellati

details. Win a copy of Penetration Testing Basics this week in the Security forum! Post Reply Bookmark Topic Watch Topic New Topic programming forums Java Java JSRs Mobile Certification Databases Caching Books Engineering no interface expected here serializable Languages Frameworks Products This Site Careers Other all forums Forum: Beginning Java error:

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no interface expected here Peter Simon Greenhorn Posts: 14 posted 13 years ago Hi, I have two classes which

Java Extends

extend interfaces. One extends Serializable, the other javax.ejb.EntityBean I do import the right packages. java.io.Serializable and javax.ejb.* Compiler complains: no interface expected here. I guess the solution is pretty straightforward, but I don't http://stackoverflow.com/questions/25226931/why-is-my-program-saying-there-is-an-error-interface-expected-here see what I'm doing wrong. thanks for setting this straight. Barry Gaunt Ranch Hand Posts: 7729 posted 13 years ago Sorry to be a pedant but do you really mean extends Serializable? -Barry Ask a Meaningful Question and HowToAskQuestionsOnJavaRanch Getting someone to think and try something out is much more useful than just telling them the answer. Volodymyr Shram Ranch Hand Posts: 47 posted 13 https://coderanch.com/t/392710/java/java/error-interface-expected years ago Originally posted by Peter Simon: Hi, I have two classes which extend interfaces. One extends Serializable, the other javax.ejb.EntityBean I do import the right packages. java.io.Serializable and javax.ejb.* Compiler complains: no interface expected here. I guess the solution is pretty straightforward, but I don't see what I'm doing wrong. thanks for setting this straight. Yeah, Barry Gaunt is right, you have to use implement instead of extends interfaces in your case: public abstract class YourBean implements EntityBean or extends inteface for local/remote interface: public interface GateLocal extends javax.ejb.EJBLocalObject and implement your serializable object: public class YourModel implements Serializable ... Peter Simon Greenhorn Posts: 14 posted 13 years ago thank you for the replys. As I thought it was pretty straightforward. Have to get used interpreting the errormessages I guess. Barry Gaunt Ranch Hand Posts: 7729 posted 13 years ago Volodymyr got in before me ( while I had to go for my books ) You must implement EntityBean. Damm... I'll just have to learn to type with four fingers... [ October 25, 2002: Message edited by: Barry Gaunt ] Ask a Meaningful Question and HowToAskQuestionsOnJavaRanch Getting someone to think and try something out is m

here in PlatformComponent.java This topic contains 2 replies, has 2 voices, and was last updated by http://overlap2d.com/forums/topic/error-no-interface-expected-here-in-platformcomponent-java/ bangive 11 months, 1 week ago. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts November 16, 2015 at https://github.com/JetBrains/intellij-community/blob/master/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting/Interface.java 10:16 am #3443 bangive I followed tutorial video. In the video the code is: public class PlatformComponent extends Component { ... } 123456789 interface expected public class PlatformComponent extends Component {...} The video run ok but when i run it show output error: Error no interface expected here public class PlatformComponent extends Component { 12345 Error no interface expected here public class PlatformComponent extends Component { I need to change interface expected here extends to implements to make it works. Please explain why. This topic was modified 11 months, 1 week ago by bangive. This topic was modified 11 months, 1 week ago by bangive. November 16, 2015 at 4:17 pm #3455 azakhary "Component" is part of Ashley. When I was making the video Component was an abstract class. Later they changed it to interface. So now it has to be "implements" now. You can ask them why they did it: https://github.com/libgdx/ashley November 17, 2015 at 1:21 am #3459 bangive Thank you for clarifying. Author Posts Viewing 3 posts - 1 through 3 (of 3 total) You must be logged in to reply to this topic. Search for: Close Login Forgot your password? Username or E-mail* Password* Remember me © 2016 UnderwaterApps, LLC

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