SequenceInputStream read() in Java

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

Syntax:

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

This method reads the next byte of data from this input stream. The byte is returned as an int in the range 0 to 255. If no byte is available because the end of the stream has been reached, the value -1 is returned.

This method blocks until input data is available, the end of the stream is detected, or an exception is thrown.

Parameters: NA

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

Throws:

1. IOException - if an I/O error occurs.

Approach

Java

import java.io.FileInputStream;
import java.io.IOException;
import java.io.SequenceInputStream;

public class SequenceInputStreamread {
    public static void main(String[] args) throws IOException {
        FileInputStream input1 = 
                       new FileInputStream("D:\\hello.txt");
        @SuppressWarnings("resource")
        FileInputStream input2 =
                          new FileInputStream("D:\\hell.txt");
        SequenceInputStream sequenceInputStream = 
                       new SequenceInputStream(input1, input2);

        System.out.println(sequenceInputStream.read());
        sequenceInputStream.close();

    }
}

Output:

97

Some other methods of SequenceInputStream

available(): This method returns an estimate of the number of bytes that can be read (or skipped over) from the current underlying input stream without blocking the next invocation of a method for the current underlying input stream.

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

read(): This method reads the next byte of data from this input stream. 

read(byte[], int, int): This method reads up to len bytes of data from this input stream into an array of bytes.

SequenceInputStream(InputStream, InputStream): This method initializes a newly created SequenceInputStreamby remembering the two arguments, which will be read in order, first s1 and then s2, to provide the bytes to be read from this SequenceInputStream.

SequenceInputStream(Enumeration): This method initializes a newly created SequenceInputStream by remembering the argument, which must be an Enumeration that produces objects whose run-time type is InputStream.