JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Program: How to convert byte array to reader or BufferedReader?


Sometimes we need to convert byte array object to reader object. Below example shows how to convert byte array to bufferedreader object.


package com.java2novice.files;

import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

public class MyByteArrayToReader {

	public static void main(String a[]){
		
		String str = "converting to input stream"+
						"\n and this is second line";
		byte[] content = str.getBytes();
		InputStream is = null;
		BufferedReader bfReader = null;
		try {
			is = new ByteArrayInputStream(content);
			bfReader = new BufferedReader(new InputStreamReader(is));
			String temp = null;
			while((temp = bfReader.readLine()) != null){
				System.out.println(temp);
			}
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try{
				if(is != null) is.close();
			} catch (Exception ex){
				
			}
		}
		
	}
}

Output:
converting to input stream
 and this is second line
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  15. How to convert byte array to inputstream?
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  18. How to set file permissions in java?
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  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
Inner class and Anonymous class
Inner class: classes defined in other classes, including those defined in methods are called inner classes. An inner class can have any accessibility including private.

Anonymous class: Anonymous class is a class defined inside a method without a name and is instantiated and declared in the same place and cannot have explicit constructors.
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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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