How to load a DLL from a directory in Java?
Call System.load to load the DLL from an explicitly specified absolute path. Modify the PATH environment variable to include the directory where the DLL is located. Specify the java.library.path on the command line by using the -D option. If using Eclipse, set the java.library.path in Eclipse for development/debugging.
How to instantiate a singleton class in Java?
Next time, if we try to call getInstance () method, since single_instance is not null, it is returned to the variable, instead of instantiating the Singleton class again. This part is done by if condition. In the main class, we instantiate the singleton class with 3 objects x, y, z by calling static method getInstance ().
How to load a Java ( Windows ) native library ( DLL )?
If using Eclipse, set the java.library.path in Eclipse for development/debugging. 1. Call System.load to load the DLL from an explicitly specified absolute path. This choice removes all uncertainty, but embeds a hard-coded path within your Java application. Example: 2. Copy the DLL to one of the paths already listed in java.library.path
How to load a Java library ( DLL ) in Eclipse?
If using Eclipse, set the java.library.path in Eclipse for development/debugging. 1. Call System.load to load the DLL from an explicitly specified absolute path. This choice removes all uncertainty, but embeds a hard-coded path within your Java application.
How to list the contents of a directory in Java?
You can list all the contents of a directory by using the newDirectoryStream (Path) method. This method returns an object that implements the DirectoryStream interface. The class that implements the DirectoryStream interface also implements Iterable, so you can iterate through the directory stream, reading all of the objects.
How to list all root directories in Java?
You can list all the root directories for a file system by using the FileSystem.getRootDirectories method. This method returns an Iterable, which enables you to use the enhanced for statement to iterate over all the root directories. The following code snippet prints the root directories for the default file system:
How to create a new directory in Java?
Iterable dirs = FileSystems.getDefault ().getRootDirectories (); for (Path name: dirs) { System.err.println (name); } You can create a new directory by using the createDirectory (Path, FileAttribute ) method. If you don’t specify any FileAttributes, the new directory will have default attributes. For example: Path dir = …;