PipedInputStream PipedInputStream(int) in Java

PipedInputStream(int): This method is available in the java.io.PipedInputStream class of Java.

Syntax:

java.io.PipedInputStream.PipedInputStream(int pipeSize)

This method takes one argument. This method creates a PipedInputStream so that it is not yet connected and uses the specified pipe size for the pipe's buffer.

Note:

1. It must be connected to a PipedOutputStream before being used.

Parameters: One parameter is required for this method.

pipeSize: the size of the pipe's buffer.

Throws:

1. IllegalArgumentException - if pipeSize <= 0.

Approach 1: When no exception

Java

import java.io.IOException;
import java.io.PipedInputStream;

public class PipedInputStreamPipedInputStream2 {
    public static void main(String[] args) throws IOException {

        int pipeSize = 10;
        PipedInputStream pipedInputStream =
                      new PipedInputStream(pipeSize);

        System.out.println(pipedInputStream);

        pipedInputStream.close();
    }
}

Output:

java.io.PipedInputStream@26f0a63f

Approach 2: IllegalArgumentException

Java

package com.PipedInputStream;

import java.io.IOException;
import java.io.PipedInputStream;

public class PipedInputStreamPipedInputStream2 {
    public static void main(String[] args) throws IOException {

        int pipeSize = 0;
        PipedInputStream pipedInputStream = 
                        new PipedInputStream(pipeSize);

        System.out.println(pipedInputStream);

        pipedInputStream.close();
    }
}

Output:

Exception in thread "main" java.lang.IllegalArgumentException: Pipe Size <= 0
	at java.base/java.io.PipedInputStream.initPipe(PipedInputStream.java:159)
	at java.base/java.io.PipedInputStream.<init>(PipedInputStream.java:154)
	at com.PipedInputStream.PipedInputStreamPipedInputStream2.main(PipedInputStreamPipedInputStream2.java:10)

Some other methods of PipedInputStream

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

connect(PipedOutputStream): This method causes this piped input stream to be connected to the piped output stream src.

available(): This method returns the number of bytes that can be read from this input stream without blocking.

PipedInputStream(): This method creates a PipedInputStream so that it is not yet connected.

PipedInputStream(int): This method creates a PipedInputStream so that it is not yet connected and uses the specified pipe size for the pipe's buffer.

PipedInputStream(PipedOutputStream): This method creates a PipedInputStream so that it is connected to the piped output stream src.

PipedInputStream(PipedOutputStream, int): This method creates a PipedInputStream so that it is connected to the piped output stream src and uses the specified pipe size for the pipe's buffer.

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

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