Java Socket getSoLinger() method

The getSoLinger () method of Java Socket class returns the setting if the SO_Linger option is set else it returns -1 if the option is disabled.

This method only affects the setting for SO_LINGER.

Syntax

Parameter

Return

The getSoLinger () method returns the setting for SO_LINGER option.

Throws

SocketException - if an error is there in the protocol, such as a TCP error.

Example 1

import java.io.IOException;
import java.net.*;
public class JavaSocketGetSoLingerExample1  {
    public static void main(String[] args) throws IOException {
        //calling the constructor of the socket class
        Socket socket = new Socket();
        //enabling the SO_LINGER option
        boolean on=true;
        //setting the integer value for timeout
        int timeout=90;
        socket.setSoLinger(on,timeout);
        //getSoLinger() method returns the setting if the SO_Linger option is set
        System.out.println("Send Buffer size: "+socket.getSoLinger());
    }
}

Test it Now

Output:

Send Buffer size: -1

Example 2

import java.io.IOException;
import java.net.*;
public class JavaSocketGetSoLingerExample2  {
    public static void main(String[] args) throws IOException {
        //calling the constructor of the socket class
        Socket socket = new Socket();
        //disabling the SO_LINGER option
        boolean on=false;
        //setting the integer value for timeout
        int timeout=90;
        socket.setSoLinger(on,timeout);
        //getSoLinger() method returns the setting if the SO_Linger option is set
        //if the SO_LINGER option is disabled, it returns -1
        System.out.println("Send Buffer size: "+socket.getSoLinger());
    }
} 

Test it Now

Output:

Send Buffer size: -1

Example 3

import java.io.IOException;
import java.net.*;
public class JavaSocketGetSoLingerExample3  {
    public static void main(String[] args) throws IOException {
        //calling the constructor of the socket class
        Socket socket = new Socket();
        //disabling the SO_LINGER option
        boolean on=true;
        //setting the integer value for timeout
        //the timeout value should be greater or equal to 0
        int timeout=-10;
        socket.setSoLinger(on,timeout);
        //getSoLinger() method returns the setting if the SO_Linger option is set
        System.out.println("Send Buffer size: "+socket.getSoLinger());
    }
}

Test it Now

Output:

Exception in thread "main" java.lang.IllegalArgumentException: invalid value for SO_LINGER
	at java.net.Socket.setSoLinger(Socket.java:1021)
	at com.javaTpoint.JavaSocketGetSoLingerExample3.main(JavaSocketGetSoLingerExample3.java:13)

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