How to open a java file

Files that contain the. Sun Microsystems began development of the Java programming language in In the Oracle Corporation bought Sun Microsystems. The Java programming language uses an object-orientated approach to programming. A file with the. Many compilers use these files to create Java source code. Usually when a file contains the. JAR files are archived data with a fancy name. JAR files are usually Java applications packaged into a single file.

As JRE is free to download, this is the easiest way to get. On the other hand, if you just want to look at the contents of the JAR archive but not actually run it, you can always use a file extraction tool. Levin Roy is a software engineer who loves writing about technology.

Whether it is Windows tips-and-tricks or in-depth guides about application development, Levin uses his practical experience and technical skills to create articles that can help solve tricky problems.

Read Levin's Full Bio. This class looks for the associated application registered to the current platform to open a file. When you run the above program, the text file will be opened in the default text editor.

Similarly, a PDF file will be opened in adobe acrobat reader. If there are no application associated with given file type or the application is failed to launch, open method throws java. Does it have to be a java file to open? Say I wanted to open Widows Mail Microsoft email application. Would that work? Can anyone tell me How to open any file based on user search from D drive? This document contains links that may refer to other files do you want to update this document with data from the linked files?

Always valid the dependencies before continue. Example, Desktop. Thanks for the code above, it helped me in solving my problem in opening an excel from Java code.

I am developing web project in java. I have requirement to open a pdf file in jsp. That pdf is available in web directory. Step 2 Save this file with the. Make sure that the name of the file should be the same as that of the public class. If the file doesn't have any public class, we can save it with any name, but after compilation, a bytecode file will be generated with the name of the class containing the main method.

Step 3 Now, open the command prompt and open the directory in which we have saved our program by using the following command.

Step 5 After the code is compiled, it generates a bytecode file in the same folder having the. This is the file which is executed by the JRE. To run this file, use the following command. JavaTpoint offers too many high quality services. Mail us on [email protected] , to get more information about given services. Please mail your requirement at [email protected] Duration: 1 week to 2 week. Java Main Method System. JavaScript Java vs. Kotlin Java vs. Next Topic Java Tutorial. Reinforcement Learning.