This question already has answers here:
Android import java.nio.file.Files; cannot be resolved
(3 answers)
Closed 6 years ago.
Project Structure-->SDK location shows /Library/Java/JavaVirtualMachines/jdk1.7.0_71.jdk/Contents/Home
the project structure view shows jdk 1.7. I see java.nio.file when I expand the packages, but
import java.nio.file can't be found even after rebuilding. java.io.Reader is found by the editor.
I'm not entirely sure, but I think this has something to do with the android sdk not allowing this. I have the sdk and the jdk listed in Project view-->"External Libraries"
Related
This question already has answers here:
How to add JavaFX runtime to Eclipse in Java 11?
(6 answers)
Closed 3 years ago.
How do I import javafx in eclipse? Why is it not added by default with jre or jdk? What is the recommended forms library in java?
I have installed e(fx)clipse 3.6.0 plugin but it did not help.
This is screenshot of my project libraries.
Since JDK 11, JavaFX has been decoupled from the JDK.
This means you must import it as you would any other library. This is different to previous versions in which it was included as part of the JDK.
You must:
Make sure the JavaFX jars are available on the classpath. (You can do this by downloading the jars manually and copying them in, or through a build system like maven or gradle)
Import the classes you need in your source file
Note that there are several jars you may want (e.g core, components, swing compatibility, fxml support, etc).
This question already has answers here:
What is AndroidX?
(10 answers)
Closed 3 years ago.
"I am not able to use both android x as well as appCompat, is ther a way or i have to migrate all my code to androidX"
I tried putting in different module but it didn't worked
Do I have to migrate if my compile sdk version is 28?
Androidx is the latest SDK update of android, It will provide you backward compatibility and to get rid of support libraries, It indluded all these support libraries in AndroidX package.
You can't use any AndroidX library or can't access any of its packages unless you migrate your app's code to AndroidX. I'll prefer you to migrate it as it will increase support.
You can just migrate your project to androidx by selecting Refactor-->Migrate to AndroidX. It will automatically import the library import androidx.appcompat.app.AppCompatActivity; So you no need to change anything in your code.
This question already has answers here:
How to add JavaFX runtime to Eclipse in Java 11?
(6 answers)
Closed 4 years ago.
I just installed the newest Eclipse and e(fx)clipse, but it didn't change anything - I have no idea why javafx imports are not resolved.
Sorry I can't provide more proves I tried to solve it, but I just think (and remember it was I like that before) installing it and restarting Eclipse should be sufficient.
The purpose of e(fx)clipse is not to resolve JavaFX imports. If using Java 11 or higher, you have to add the JavaFX dependency yourself because JavaFX has been removed in Java 11. See Java 11 release notes:
JavaFX is no longer included in the JDK. It is now available as a
separate download from openjfx.io.
See: Getting Started with JavaFX 11
e(fx)clipse offers as a runtime e. g. a way to build JavaFX OSGi/Eclipse-based applications and provides tooling for JavaFX, e. g. to edit FXML files.
This question already has answers here:
Access restriction on class due to restriction on required library rt.jar?
(15 answers)
Closed 9 years ago.
I'm writing a Java app and am currently working on all of the Apple native LAF stuff. I'm trying to customize the application menu and I've found that I need to use com.apple.eawt.Application in order to do so. However, when I try to import that class, my IDE says:
Access restriction: The type Application is not accessible due to restriction on required library /Library/Java/JavaVirtualMachines/jdk1.7.0_45.jdk/Contents/Home/jre/lib/rt.jar
I'm using JDK 1.7 update 45, on Mac OS X 10.9, using Eclipse. The rt.jar is on the classpath, but something is unhappy. How do I resolve this?
you might be trying it with JRE in your build path, you can try changing it to JDK
please refer my answer
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
How do I import the javax.servlet API in my Eclipse project?
When I try to use javax.servlet.http.*; an error package does not exist is thrown. Should I want to reinstall java or it occurs due to some other problem. I'm using j2sdk 1.4.0 & Tomcat 6.0.
Guess servlet.jar is not on the classpath. Assuming you are on Windows, right click on My Computer -> Properties -> Advanced -> Environment Variables, and check your CLASSPATH entry.