Java.io.InputStreamReader.getEncoding() Method

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Description

The java.io.InputStreamReader.getEncoding() method returns the name of the character encoding used by this stream. If the encoding has an historical name then the name is returned; else the encoding's canonical name is returned.

Declaration

Following is the declaration for java.io.InputStreamReader.getEncoding() method −

public String getEncoding()

Parameters

NA

Return Value

The historical name of this encoding, or null if the stream has been closed.

Exception

NA

Example

The following example shows the usage of java.io.InputStreamReader.getEncoding() method.

package com.tutorialspoint;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;

public class InputStreamReaderDemo {
   public static void main(String[] args) throws IOException {
      FileInputStream fis = null;
      InputStreamReader isr = null;
      String s;
      
      try {
         // new input stream reader is created 
         fis = new FileInputStream("C:/test.txt");
         isr = new InputStreamReader(fis);
         
         // the name of the character encoding returned
         s = isr.getEncoding();
         System.out.print("Character Encoding: "+s);
         
      } catch (Exception e) {
         // print error
         System.out.print("The stream is already closed");
      } finally {
         // closes the stream and releases resources associated
         if(fis!=null)
            fis.close();
         if(isr!=null)
            isr.close();
      }   
   }
}

Assuming we have a text file c:/test.txt, which has the following content. This file will be used as an input for our example program −

ABCDE

Let us compile and run the above program, this will produce the following result −

Character Encoding: Cp1252