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Java PipedInputStream connect() Method with Example

PipedInputStream Class connect() method: Here, we are going to learn about the connect() method of PipedInputStream Class with its syntax and example.
Submitted by Preeti Jain, on April 17, 2020

PipedInputStream Class connect() method

  • connect() method is available in java.io package.
  • connect() method is used to cause this PipedInputStream to be connected to the given PipedOutputStream when the PipedInputStream is not previously connected to any of the other PipedOutputStream.
  • connect() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
  • connect() method may throw an exception at the time of connecting the stream.
    IOException: This exception may throw when getting any input/output error while performing.

Syntax:

    public void connect(PipedOutputStream pos);

Parameter(s):

  • PipedOutputStream pos – represents the PipedOutputStream to connect to this PipedInputStream.

Return value:

The return type of the method is void, it returns nothing.

Example:

// Java program to demonstrate the example 
// of void connect(PipedOutputStream pos)
// method of PipedInputStream

import java.io.*;

public class ConnectOfPIS {
    public static void main(String[] args) throws Exception {
        int val = 65;
        
        try {
            // Instantiates PipedInputStream and 
            // PipedOutputStream
            PipedInputStream pipe_in = new PipedInputStream();
            PipedOutputStream pipe_out = new PipedOutputStream();

            // By using connect() method is to
            // connect this pipe_in to the given pipe_out
            pipe_in.connect(pipe_out);
            
            for (int i = 0; i < 3; ++i) {
                // By using write() method is to
                // write the val to the stream pipe_out
                pipe_out.write(val);
                val++;
            }

            // when we call read() after closing the stream
            // will result an exception
            for (int i = 0; i < 3; ++i) {
                // By using read() method is to
                // read the integer and convert it into
                // char
                char ch = (char) pipe_in.read();
                System.out.println("pipe_in.read(): " + ch);
            }

            // By using close() method is to close
            // the stream
            pipe_in.close();
            pipe_out.close();
        } catch (Exception ex) {
            System.out.println(ex.toString());
        }
    }
}

Output

pipe_in.read(): A
pipe_in.read(): B
pipe_in.read(): C





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