How do I open a Java file in NetBeans?

In the NetBeans IDE, choose File | New Project…. NetBeans IDE with the File | New Project menu item selected. In the New Project wizard, expand the Java category and select Java Application as shown in the following figure: NetBeans IDE, New Project wizard, Choose Project page.

How can we open and read a text file in Java?

There are several ways to read a plain text file in Java e.g. you can use FileReader, BufferedReader, or Scanner to read a text file. Every utility provides something special e.g. BufferedReader provides buffering of data for fast reading, and Scanner provides parsing ability. Methods: Using BufferedReader class.

What is open () in Java?

Java Desktop class provide an open() method to open a file. It belongs to a java. awt package. Desktop implementation is platform-dependent, so it is necessary to check the operating system supports Desktop or not. The Desktop class looks for an associated application registered on the native desktop to handle a file.

How do I read a .JAR file?

inside a jar file is using programs like ‘winrar’ and ‘7-Zip’.

  1. Download winrar or 7-zip program if it’s not installed.
  2. Then right click to your jar file.
  3. Click open with winrar or 7-zip.

What is correct way to open the file?

To open a file:

  1. Find the file on your computer and double-click it. This will open the file in its default application.
  2. Open the application, then use the application to open the file. Once the application is open, you can go to the File menu at the top of the window and select Open.

Why can’t I open a file with Java?

If you can’t run jar files on your Windows 10 PC, you might need to reinstall Java Runtime Environment. When JAR files are not opening, another great method is to simply use a universal file opener. Alternatively, some reported that turning your JAR file into a BAT file worked perfectly.