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/awt/peer/TextFieldPeer.java

/*
 * @(#)TextFieldPeer.java	1.9 01/12/10
 *
 * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
package java.awt.peer;

import java.awt.Dimension;

public interface TextFieldPeer extends TextComponentPeer {
    void setEchoChar(char echoChar);
    Dimension getPreferredSize(int columns);
    Dimension getMinimumSize(int columns);

    /**
     * DEPRECATED:  Replaced by setEchoChar(char echoChar).
     */
    void setEchoCharacter(char c);

    /**
     * DEPRECATED:  Replaced by getPreferredSize(int).
     */
    Dimension preferredSize(int cols);

    /**
     * DEPRECATED:  Replaced by getMinimumSize(int).
     */
    Dimension minimumSize(int cols);
}

⏎ java/awt/peer/TextFieldPeer.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)