InputStreamReader InputStreamReader(InputStream, CharsetDecoder) in Java

InputStreamReader(InputStream, CharsetDecoder): This method is available in the java.io.InputStreamReader class of Java.

Syntax:

java.io.InputStreamReader.InputStreamReader(InputStream in, CharsetDecoder dec)

This method takes two arguments. This method creates an InputStreamReader that uses the given charset decoder.

Parameters: Two parameters are required for this method.

in: An InputStream.

dec: A charset decoder.

Exceptions: NA

Approach

Java

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;

public class InputStreamReaderConstructor3 {
    public static void main(String[] args) throws IOException {

        File file = new File("D:\\hello.txt");
        InputStream in = new FileInputStream(file);
        Charset charset = Charset.forName("ISO-8859-1");
        CharsetDecoder cd = charset.newDecoder();
        InputStreamReader inputStreamReader = 
                     new InputStreamReader(in, cd);

        System.out.println(inputStreamReader);
        inputStreamReader.close();
    }
}

Output:

java.io.InputStreamReader@7637f22

Some more methods of InputStreamReader

close(): This method closes the stream and releases any system resources associated with it.

InputStreamReader(InputStream): This method creates an InputStreamReader that uses the default charset.

InputStreamReader(InputStream, Charset): This method creates an InputStreamReader that uses the given charset.

InputStreamReader(InputStream, String): This method creates an InputStreamReader that uses the named charset.

getEncoding(): This method returns the name of the character encoding being used by this stream.

read(): This method reads a single character.

read(char[], int, int): This method reads characters into a portion of an array.

ready(): This method tells whether this stream is ready to be read.