JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Program: How to write or store data into temporary file in java?


Below example shows how to write or store data into a temporary file in java.


package com.java2novice.files;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

public class MyTempFileWrite {

	public static void main(String a[]){

		File tempFile = null;
		BufferedWriter writer = null;
		try {
			tempFile = File.createTempFile("MyTempFile", ".tmp");
			writer = new BufferedWriter(new FileWriter(tempFile));
			writer.write("Writing data into temp file!!!");
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} finally {
			try{
				if(writer != null) writer.close();
			}catch(Exception ex){}
		}
		System.out.println("Stored data in temporary file.");
	}
}

Output:
Stored data in temporary file.
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  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?
Knowledge Centre
What is wrapper class?
Everything in java is an object, except primitives. Primitives are int, short, long, boolean, etc. Since they are not objects, they cannot return as objects, and collection of objects. To support this, java provides wrapper classes to move primitives to objects. Some of the wrapper classes are Integer, Long, Boolean, etc.
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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] or you can comment on the page.

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