JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Program: How to convert inputstream to reader or BufferedReader?


Sometimes we need to convert inputstream object to reader object, so that we can handle the stream according to our logic. Below example shows how to convert inputstream to bufferedreader object.


package com.java2novice.files;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

public class MyIstoBr {

	public static void main(String a[]){
		
		InputStream is = null;
		BufferedReader bfReader = null;
		try {
			is = new FileInputStream("C:/sample.txt");
			bfReader = new BufferedReader(new InputStreamReader(is));
			String temp = null;
			while((temp = bfReader.readLine()) != null){
				System.out.println(temp);
			}
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

Output:
This is a test file, here we are
trying to read a file using BufferedReader.
We are trying to convert input stream object 
to reader object.
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Knowledge Centre
Stream and types of Streams
A Stream is an abstraction that either produces or consumes information. There are two types of Streams and they are:

Byte Streams: Provide a convenient means for handling input and output of bytes. Byte Streams classes are defined by using two abstract classes, namely InputStream and OutputStream.

Character Streams: Provide a convenient means for handling input & output of characters. Character Streams classes are defined by using two abstract classes, namely Reader and Writer.
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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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