JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS
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Java File I/O Operations Examples


Description:

Here we are trying to give java sample examples for classes belongs to java.io package. It includes classes like File, InputStream, OutputStream, Reader, Writer, Properties, etc.

Java File IO Operations Sample Code Examples

  1. All file operations.
  2. Show list of all file names from a folder.
  3. How to get list of all files from a folder?
  4. Filter the files by file extensions and show the file names.
  5. How to read file content using byte array?
  6. How to read file content line by line in java?
  7. How to read property file in static context?
  8. How to read input from console in java?
  9. How to get file list from a folder filtered by extensions?
  10. How to get file URI reference?
  11. How to store and read objects from a file?
  12. How to create and store property file dynamically?
  13. How to store property file as xml file?
  14. How to get file last modified time?
  15. How to convert byte array to inputstream?
  16. How to convert inputstream to reader or BufferedReader?
  17. How to convert byte array to reader or BufferedReader?
  18. How to set file permissions in java?
  19. How to read a file using BufferedInputStream?
  20. How to create temporary file in java?
  21. How to write or store data into temporary file in java?
  22. How to delete temporary file in java?
  23. How to write string content to a file in java?
  24. How to write byte content to a file in java?
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doPost Vs doGet methods
doGet() method is used to get information, while doPost() method is used for posting information. doGet() requests can't send large amount of information and is limited to 240-255 characters. However, doPost()requests passes all of its data, of unlimited length. A doGet() request is appended to the request URL in a query string and this allows the exchange is visible to the client, whereas a doPost() request passes directly over the socket connection as part of its HTTP request body and the exchange are invisible to the client.
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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