I’m having a problem when running programs that use Java from the command line. I get back a message saying Java.exe could not be found. I’ve followed the instructions found in several places for setting JAVA_HOME in Windows 7. As can be seen in the image I’m pointing to the JDK folder as in…
Tag: windows
Extracting .jar file with command line
I am trying to extract the files from a .jar file. How do I do that using command line? I am running Windows 7 Answer From the docs: To extract the files from a jar file, use x, as in: To extract only certain files from a jar file, supply their filenames: The folder where jar is probably isn’t C:Java
Windows ignores JAVA_HOME: how to set JDK as default?
How do I persuade Windows to use the JDK instead of a JRE? This question has been asked before, here and elsewhere: How do I set the default Java installation/runtime (Windows)? The trouble is that Windows ignores JAVA_HOME and it also ignores the fact that I made the JDK bin directory the first entry in the …
How do I make HttpURLConnection use a proxy?
If I do this… it prints The problem is, I am behind a proxy. Where does the JVM get its proxy information from on Windows? How do I set this up? All my other apps seem perfectly happy with my proxy. Answer Since java 1.5 you can also pass a java.net.Proxy instance to the openConnection(proxy) method: If…
How to change command prompt (console) window title from command line Java app?
How to change and update the title of the command prompt window from the java command line application? Every time I run my application, the command prompt window title shows: C:WINDOWSsystem32cmd.exe – java MyApp. I’d like to change and update the window title as the java program runs, for exampl…
In java under Windows, how do I find a redirected Desktop folder?
I know using .NET languages such as C#, one can do something like to find the redirected location of the Desktop. However, under Java, I cannot think of a good way to do this. What is the most appropriate way to find a redirected user Desktop directory from Java, without using JNI? The specific purpose here i…
Ant is not able to delete some files on windows
I have an ant build that makes directories, calls javac and all the regular stuff. The issue I am having is that when I try to do a clean (delete all the stuff that was generated) the delete task reports that is was unable to delete some files. When I try to delete them manually it works just fine. The