bbscom.java

本书注重理论联系实际

// Source File Name:   bbscom.java
package test;
public class bbscom
{

    public bbscom()
    {
        pagesCurrent = 0;
        pagesNext = 0;
        pagesLast = 0;
    }

    public int getPagesCurrent()
    {//返回当前页
        return pagesCurrent;
    }

    public int getPagesLast()
    {//返回最后页
        return pagesLast;
    }

    public int getPagesNext()
    {//返回下一页
        return pagesNext;
    }

    public void setPages(int j, int k)
    {//设置页数
        if(j <= 0)
        {
            pagesCurrent = 0;
            pagesNext = 0;
            pagesLast = 0;
        } else
        {
            pagesCurrent = k;
            pagesNext = k + 1;
            pagesLast = k - 1;
            if(k >= j)
            {
                pagesCurrent = j;
                pagesNext = 0;
                pagesLast = k - 1;
            }
            if(k <= 1)
            {
                pagesCurrent = 1;
                pagesNext = k + 1;
                pagesLast = 0;
            }
            if(pagesNext > j)
                pagesNext = j;
            if(pagesNext == j)
                pagesNext = 0;
            if(pagesLast < 0)
                pagesLast = 1;
            if(pagesLast == 1)
                pagesLast = 0;
        }
    }

    int i;
    int pagesCurrent;
    int pagesNext;
    int pagesLast;
}