JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Program: How to write string content to a file in java?


Below example shows how write string content to a local file. When you are dealing with characters, you need to use Writer.


package com.java2novice.files;

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

public class WriteToFile {

	public static void main(String[] args) {
		
		BufferedWriter bufferedWriter = null;
		try {
 			String strContent = "This example shows how to write string content to a file";
 			File myFile = new File("C:/MyTestFile.txt");
 			// check if file exist, otherwise create the file before writing
			if (!myFile.exists()) {
				myFile.createNewFile();
			}
 			Writer writer = new FileWriter(myFile);
			bufferedWriter = new BufferedWriter(writer);
			bufferedWriter.write(strContent);
 		} catch (IOException e) {
			e.printStackTrace();
		} finally{
			try{
				if(bufferedWriter != null) bufferedWriter.close();
			} catch(Exception ex){
				
			}
		}
	}
}
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Java File IO Operations Sample Code Examples

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  4. Filter the files by file extensions and show the file names.
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  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?
Knowledge Centre
What is adapter class?
An adapter class provides the default implementation of all methods in an event listener interface. Adapter classes are very useful when you want to process only few of the events that are handled by a particular event listener interface. You can define a new class by extending one of the adapter classes and implement only those events relevant to you.
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If you don’t make mistakes, you’re not working on hard enough problems. And that’s a big mistake.
-- Frank Wilczek

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