I understand that Android doesn't use the full jdk, but I want to add javax to my Android project. More specifically I want to add javax.tools. I can't find a download for it though. Do I have to add the entire JDK as an external library to access javax.tools? Or is none of this possible?
when you installing jdk in your system , and then define jdk's path to AndoridStudio .
so all of your android projects included jdk as an external library. so you don't need to do any thing else.
just check your jdk status by this way:
Open command prompt and type java -version. If you get the version info, Java is installed correctly and PATH is also set correctly.
and if you don't get:
Go to start menu-->System-->Advanced-->Environment Variables and define your jdk path .
and finally define it in your project Structure in Android Studio .
Related
I downloaded a JDK from Oracle and try to put it into Unity's JDK path. I see posts that says you have to choose a path inside the JavaVirtualMachine. But I can't find anything in JavaVirtualMachine. I typed the command /usr/libexec/java_home in the terminal and it shows me this - /Library/Java/JavaVirtualMachines/jdk-14.0.1.jdk/Contents/Home
It is suppose to be the path of the JDK. But as I mentioned above, I checked the finder and there is nothing inside the JavaVirtualMachine. Is there anything I am probably missing or done wrong? Any help will be greatly appreciated!
You need to use Unity Hub and download/install the corresponding Android module to the Unity version you are using for your project.
When I try to run my program using IntelliJ it says I need a project SDK but when I try to set up a project SDK, it says "The Selected directory is not a valid home for this SDK"
This can happen when a java SDK is deleted, moved, or configured incorrectly.
Go into Project Structure (Ctrl+Alt+Shift+s)
On the left under Project Settings select Project
Now see the Project SDK: - it is likely red if cofigured incorrectly or it might say <No SDK>.
Firstly, just see if there is another SDK of appropriate java version in the drop down list you can use.
If not, you can use Edit button on an existing JDK to modify the JDK home path if it is wrong.
Or just press New... and JDK to set up a JDK that is already installed on your machine (e.g. C:\Program Files\Java\jdk1.8.0_72)
...if you have no JDK on your machine (be aware of the difference between a JRE and a JDK) then you'll obviously need to download and install that first
I have installed Java 8 on my computer but Android Studio doesn't find it. When I execute the installer of Android Studio I only can see an screen in which I can see an introduction and when I press "Next" another screen it's displayed in which says:
We could not detect a Java Development Kit (JDK) v7 or newer on your system. Please browse to its path if known.
So I searched my JDK and when I press the button "Next" I get the following message:
Sorry, we still could not detect a valid JDK, which we need to proceed.
If setting your JDK path manually, make sure you have browsed to a parent directory that contains a "bin\java.exe" whose version reports 1.7 or higher when you run "java.exe -version".
After that, I go to the console and execute the command "java.exe -version". It gives to me:
java version "1.8.0_60"
So I don't know why it doesn't find my JDK. I also tried adding some Environment Variables:
JAVA_HOME: C:\Program Files\Java\jre1.8.0_60\
JDK_HOME: C:\Program Files\Java\jre1.8.0_60\
But it still doesn't find it. How can I fix it?
Note: I'm using Windows 10 as OS.
Thanks in advance!
I think your JAVA_HOME variable is set to the wrong thing. Mine is:
JAVA_HOME C:\Program Files\Java\jdk1.8.0_60
I also have a PATH variable set as follows:
PATH %JAVA_HOME%\BIN
I do not have a JDK_HOME variable.
Try that and see if it works.
(I recently installed Android Studio and had the same problem, even though I had Java 7 installed. So I downloaded Java 8 and manually updated the JAVA_HOME variable.)
I had the same problem when trying to install Android Studio bundle v2.1 (143.2915827-windows) on a Windows 10 machine with a JDK at a non-standard location (the JDK on a path containing spaces). After manually selecting the path, the installer would complain that it could still not find a JDK. I solved it by manually enclosing the selected path with double quotes by typing in the editable textbox.
This drove me nuts for a couple of days. I was not able to resolve the issue through the Android studio installer, but found a workaround:
Go to http://developer.android.com/sdk/index.html
Instead of downloading "Android Studio package" (the exe file), scroll down and select "SDK tools package" (the zip file).
This work perfectly and allows you to select all the packages you want to download, including the packages installed by the installer.
What worked for me. I recieved the same error message and went to directly install the java, without closing the installation of Android studio. then tried to find the path. so I closed out the window for Android Studio and Reopened the download file and it automatically detected it. This might not work for everyone but worth a try. easier then messing with everthing else.
I'm using Windows-7 64 bit and I have installed this(jdk-7u45-windows-x64) updated JDK in my system. My SDK was updated upto API level 18(Android 4.3).
When i click on SDK manager in the eclipse, it does not start. I tried open it directly with Administrator permission also. But it does not start. I had tried to set the variable path like these.
But I'm always getting the same error like this.
After I found that in my find_java.exe get the java path from windows\system32 as shown below .
How can I set the Java path to my installed java folder.
Need some one help to figure it out. For Reference look at this link also.
SDK manager not starting
While setting the environment variable try JAVA_HOME variable pointing the bin directory.
because the android checks the java.exe in particular path.
I am new to android,As long as i studied ,Android requires Java 1.5 or 1.6. You are using 1.7
Google does not add complete jdk 1.7 support to android system requirement(some api are exception) .. It does not mean that you should not have jdk 1.7. you should also have 1.6 jdk for compiler compilance. it is a better way to avoid using 1.7 jdk ,if u dont want jdk 1.7 features.
http://developer.android.com/sdk/index.html see the system requirements and even if u developed using 1.7...when you installing your app in real device .we may face signing issue.
you may use some jar file which targetting java 1.7. but android system runtime(dalvik jvm) does not know how to process those files which means dex tool wont process those files which belongs to 1.7 and it wont create classes.dex file..hope it will help somehow
From the error you have posted it seems the problem is only with the path settings.
Add the path upto the bin folder of your jdk - C:\Program Files\Java\jdk1.7.0_45\bin and restart the eclipse.
Please verify if your SDK Location in the Window->Preferences->Android points to the correct SDK path.
Download latest android bundle from http://developer.android.com/sdk/index.html.
and replace new sdk folder with old sdk folder from android bundle folder.
now it's may work.
Finally Reinstalled my OS and Installed JDK 1.6. Then I have added my updated SDK to my ADT. It works fine now.
I've had the same issue, and this solved it
I have Java JDK 1.7.0_07 installed and I made sure that the Java build path in Eclipse is pointing to the right directory in my system. How come my machine complains of not having the 'File' object available? I have made sure i imported java.io.*. What could be wrong?
Just make sure the JRE System Library is part of your build path (see the picture below). Check that the System library is set and if not, click on Add library and select JRE System Library.