InputStreamReader InputStreamReader(InputStream) in Java

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

Syntax:

java.io.InputStreamReader.InputStreamReader(InputStream in)

This method takes one argument. This method creates an InputStreamReader that uses the default charset.

Parameters: One parameter is required for this method.

in: An InputStream

Exceptions: NA

Approach

Java

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

public class InputStreamReaderConstructor1 {
    public static void main(String[] args) throws IOException {

        File file = new File("D:\\hello.txt");
        InputStream in = new FileInputStream(file);
        InputStreamReader inputStreamReader = 
                      new InputStreamReader(in);

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

Output:

java.io.InputStreamReader@2401f4c3

Some more methods of InputStreamReader

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

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

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

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.