FileInputStream read() in Java

read(): This method is available in the java.io.FileInputStream class of Java.

Syntax:

int java.io.FileInputStream.read() throws IOException

This method reads a byte of data from this input stream. This method blocks if no input is yet available.

Parameters: NA

Returns: the next byte of data, or -1 if the end of the file is reached.

Throws:

IOException - if an I/O error occurs.

Approach

Java

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

public class FileInputStreamread {

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

        String pathname = "D:\\hello.txt";
        File file = new File(pathname);
        FileInputStream fileInputStream =
                         new FileInputStream(file);

        System.out.println(fileInputStream.read());
        fileInputStream.close();
    }
}

Output:

-1