webnode.java

这是《Java图形用户界面设计与实例》一书配套的源代码

// WebNode.java
//Nodes for the linked lists

public class WebNode {

    private String site;
    private WebNode next;
    private WebNode prev;

    public WebNode() {
        site = null;
        next = null;
        prev = null;
    }

//**********转动当前URL，并返回其值**********************
    public WebNode(String addr) {//得到私有变量当前的URL
        site = addr;
        next = null;
        prev = null;
    }

    public void setURL(String url) {//转动当前URL
        site = url;
    }

    public String getURL() {//返回当前URL
        return site;
    }


//*********转动Next URL，并返回其值，结构同上一个********
    public void setNext(WebNode node) {
        next = node;
    }

    public WebNode getNext() {
        return next;
    }


//*******转动Previous URL，并返回其值，结构同上一个****** 
    public void setPrev(WebNode node) {
        prev = node;
    }

    public WebNode getPrev() {
        return prev;
    }
}