Java Socket isClosed () method

The isClosed () method of Java Socket class returns the closed state of the socket.

Syntax

Parameter

Return

The isClosed () method would return a Boolean value 'true' if the socket has been closed successfully.

Example 1

import java.io.IOException;
import java.net.*;
public class JavaSocketIsClosedExample1  {
    public static void main(String[] args) throws IOException {
        //calling the constructor of the socket class
        Socket socket = new Socket();
        //closing the socket
        socket.close();
        //isClosed() method returns the closing state of the socket
        System.out.println("The socket is closed: "+socket.isClosed());
    }
}

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Output:

The socket is closed: true

Example 2

import java.io.IOException;
import java.net.*;
public class JavaSocketIsClosedExample2  {
    public static void main(String[] args) throws IOException {
        //calling the constructor of the socket class
        Socket socket = new Socket();
        //isClosed() method returns the closing state of the socket
        //it will return false as the socket is not closed
        System.out.println("The socket is closed: "+socket.isClosed());
    }
}

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Output: