so I'm trying to run my program and I keep getting the error when I run my main class it says that given property file isn't found, below are two images of the file location and the arguments I've putten in and the error that appears, I'm struggling to realize why the file isn't being located, any help?
Because Windows in its wisdom thinks that hiding extensions of known file types is a good ting. You files is called input_parameters.prp and inputs.in, I guess.
If you give those names it would probably find this files.
To be sure you can open a cmd or powershell windows and run the dir command in that folder to see the complete names.
Related
Unable to produce some MVC to reproduce the issue. So trying to be clear & concise.
We utilize ant/make
The include path to building the C++ portion utilizes a header (jni.h) from the java installed directory
Example Error (During Build Process)
3)
*File.h(2): fatal error C1083: Cannot open include file: 'jni.h': No such file or directory
make: *** [File.obj] Error 2*
Another error also shown is:
cl : Command line warning D9024 : unrecognized source file type 'Files\Java\jdk1.8.0_281\include', object file assumed
cl : Command line warning D9027 : source file 'Files\Java\jdk1.8.0_281\include' ignored
cl : Command line warning D9024 : unrecognized source file type 'Files\Java\jdk1.8.0_281\include\win32', object file assumed
cl : Command line warning D9027 : source file 'Files\Java\jdk1.8.0_281\include\win32' ignored
This is the include path as part of the compilation step (Yes this path exists) -IC:\Program Files\Java\jdk1.8.0_281\include
Now when I copy the files necessary to a path that's called ProgramFiles\Java... (No spaces in ProgramFiles) it works fine.
I have a variable retrieved from a .platform file which is utilized for the build, which defines JDK_HOME. I believe this file is utilized for ant/make builds and uses these defined variables in this file.
Any ideas/paths as to ant or make not liking spaces in the include paths, or anything along those lines? I've looked at many resources online, but very hard to describe the issue.
Problem clearly is the space in Program Files. Not sure what is so significant about this.
Hoping the bullet points help in any information needed with anyone who could be familiar with this issue or might have leads. Thank you.
I'm not sure what ant has to do with this. But make recipes are just shell scripts (or, if you use Windows cmd.exe instead of a POSIX shell, batch files). Just like commands you'd write in a batch file or on the command line directly, you have to add quoting to paths that contain whitespace.
You don't actually show us either the make recipe or even the complete compile (cl) command line that make invokes so we can't give you precise advice, but basically if you cut and paste the command line make invoked into your terminal prompt you'd get exactly the same errors about whitespace. Make is not magic: it only runs the commands you tell it to run.
Just like you have to add quotes around paths containing whitespace when you run them from the terminal prompt, so too you need to add quotes to these paths when you run them from a makefile recipe.
so I did run into one very weird issue. The idea is simple: create temp dir, place some files in it and then try to access them. Now the problem is that calling File.createTempDir() or Files.createTempDirectory(prefix) creates new file inside AppData/Local/temp with shortened path, so the full path to folder looks something like C:/Users/FirstNam~1/AppData/Local/Temp/myFolder/myFile.txt instead of C:/Users/FirstName LastName/AppData/Local/Temp/myFolder.myFile.txt.
The difference is that generated path inside java contains FirstNam~1 instead of FistName SecondName. Java then throws exception File Not Found.
When I try to copy and paste shortened path into file explorer I get an error saying that file does not exist, but if I do change shortened path to full one then file opens and it works as intended.
Is there any way to fix it? Ether by forcing java to use full path names or enabling something in windows? I did Enable NTFS long paths policy, but it did not help.
This is happening when using java 8/11 and windows 10 running on VM, project is using AGP and gradle. Temp file is created inside groovy file that extends Plugin<Project>
Just when I lose hope and create a ticket, couple hours after that I find the answer. So, java has method Path.toRealPath() which solves this ~1 issue. After using this method paths no longer contain shortening and are correctly resolved.
EDIT: looks like java is doing everything correct and paths are actually valid, problem did come from library that I'm using and it's a bug with it.
I currently don't have a working way to edit and run Java on my computer, so I'm trying to get Atom working with Java (I realize it's not a Java IDE and I'm not trying to make it one, I just want to be able to do some light Java work on my laptop). I've installed the script and instant-build packages for Atom and wrote the following test code in a file called "main.java' in my project folder:
class Main{
public static void main(String[] args) {
System.out.println("please");
}
}
When I try to run the code with cmd+i (I'm on a 2012 MacBook Pro) and get the following error message:Error: Could not find or load main class main.
I'd be happy to provide any further information; thanks for helping!
The huge problem of learning Java is that you need to launch the projects in a very strict way, and setting the classpath is always problematic. The solution lays in the following (pretty enigmatic) line of the "Script" documentation:
Project directory should be the source directory; subfolders imply packaging.
So, instead of opening a plain file, open the project (folder) with .java classes or define inside the file, the package to which your .java belong.
It's due to the fact that JDE needs to create a virtual target in form of .classess and single .java file definitely can't be launched as standalone file. I suppose that "Script" is not able to locate the source folder when you try to execute seperate .java file.
Before launching your .java files always "Add Project Folder..."
Please remember that it's not possible to have several folders opened if they don't belong to the same project. Such situation cause problems of locating the right classpath and in the end javac prompts the error.
You have to name your file with the first letter in upper case Main.java, since it must match the name of your class
I replicated the issue quite easily. If I created a new directory in Atom itself and then tried to run the code it didn't work as your error message came up for me as well. Error: Could not find or load main class main.
I used an existing directory and then created a file inside that folder in Atom and ran the same code it worked. I then copied and pasted that same file into the directory of my choice and it worked.
I need to write a program that asks for the file name of a text document of number and then calculates average, median, etc., from this data set. I have written the program so that runs correctly when I input the full path such as "C:\Users\COSC\Documents\inputValues2.txt", however it will not run when I simply input inputValues2.txt. I have been researching the different between the two but am not fully understanding how to fix this. Since it is running correctly, otherwise, I don't believe it is a problem with the code, but I am new to this so I may be wrong.
Your program needs to know the full path in order to find the file. It isn't just searching your computer for the file "inputValues2.txt". It needs to know exactly how to get there. If you wanted to, you could move the file into your project folder, and then you would just be able to write "inputValues2.txt" to access it. I normally create a folder called "res" in my project folder, and then let's say I am trying to create an image:
Image i = new Image("res/img.png");
Your file should be in the class-path. That's in the same directory that your main class is in.
The suggested practice is to place it in a Resources directory inside your class-path, then you can access it via, "Resources/inputValues2.txt".
I am writing a program in java with netbeans IDE which receives a jasper report *.jrxml and then displays the report for the user. I wrote the following line of code for the file path
String reportSource = "src\\jasper-reports\\report.jrxml";
but when I move the dist folder in some other place and try to run the jar file inside it, my program can not find the report.
my problem is that were should I put the *.jrxml file and how to define it's path in my program so that when I want to give my software to someone else it runs without any errors (e.g. the program can find the file)
avoid using absolute paths. try to include the file as a resource in your netbeans project. then in your code you can search for and load the file as
new InputStreamReader((Main.class.getResourceAsStream("/report.jrxml")))
something like that depending on where the file resides in your project
it's more recommended using one of the two approaches:
pass the locations/paths as a -Dproperty=value in the Java application launcher command line http://www.tutorialspoint.com/unix_commands/java.htm
store it the locations/paths in a configurations file with a unique key and edit the file accordingly for different environments,
e.g.this files always stored in ${HOME}/config_files/ directory
absolute paths considered a bad practice