How to read UTF-8 encoded data from a file

A text file with UTF-8 encoded data

P.S File is created by this article How to write UTF-8 encoded data into a file

Here’s the example to demonstrate how to read “UTF-8″ encoded data from a file in Java

package com.mkyong;
 
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
 
public class test {
	public static void main(String[] args){
 
	try {
		File fileDir = new File("c:\\temp\\test.txt");
 
		BufferedReader in = new BufferedReader(
		   new InputStreamReader(
                      new FileInputStream(fileDir), "UTF8"));
 
		String str;
 
		while ((str = in.readLine()) != null) {
		    System.out.println(str);
		}
 
                in.close();
	    } 
	    catch (UnsupportedEncodingException e) 
	    {
			System.out.println(e.getMessage());
	    } 
	    catch (IOException e) 
	    {
			System.out.println(e.getMessage());
	    }
	    catch (Exception e)
	    {
			System.out.println(e.getMessage());
	    }
	}
}

Result

Website UTF-8
?? UTF-8
??????? UTF-8

Do not worry about the symbol “???”, this is because my output console is not support the UTF-8 data. The variable “str” is storing exactly same “UTF-8″ encoded data as showed in the text file.

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