JDK 1.1 source code directory contains Java source code for JDK 1.1 core classes: "C:\fyicenter\jdk-1.1.8\src".

Here is the list of Java classes of the JDK 1.1 source code:

⏎ java/net/SocketImplFactory.java

/*
 * @(#)SocketImplFactory.java	1.10 01/12/10
 *
 * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package java.net;

/**
 * This interface defines a factory for socket implementations. It 
 * is used by the classes <code>Socket</code> and 
 * <code>ServerSocket</code> to create actual socket 
 * implementations. 
 *
 * @author  Arthur van Hoff
 * @version 1.10, 12/10/01
 * @see     java.net.Socket
 * @see     java.net.ServerSocket
 * @since   JDK1.0
 */
public 
interface SocketImplFactory {
    /**
     * Creates a new <code>SocketImpl</code> instance.
     *
     * @return  a new instance of <code>SocketImpl</code>.
     * @see     java.io.SocketImpl
     * @since   JDK1.0
     */
    SocketImpl createSocketImpl();
}

⏎ java/net/SocketImplFactory.java

Or download all of them as a single archive file:

File name: jdk-1.1.8-src.zip
File size: 1574187 bytes
Release date: 2018-11-16
Download 

⇒ Backup JDK 1.1 Installation Directory

⇐ JDK 1.1 classes.zip - Java Core Classes

⇑ Download and Review JDK 1.1

⇑⇑ FAQ for JDK (Java Development Kit)