String paging code

Abstract: string paging code

</ Td> </ tr> <tr> <td width="527" height="35" valign="top" class="ArticleTeitle"> use examples:
StringPager pager = new StringPager ();
Pager.setSizePerPage (5); / / characters per page
Pager.setText ( "12345678901 ");// need a long text paging
Pager.setCurrentPage (2); / / Current Page

System.out.println (pager.getTotalPage ());// total number of pages
System.out.println (pager.getCurrentPagedText pages of the current string ());//

Note: Java-based concept of the length of the string, each page is displayed in English and Chinese, as are the length of a page.
All source documents:

Package examples;
/ *
* @ (#) StringPager.java 1.00 2004-10-10
*
* Copyright 2004 All rights reserved.
* PROPRIETARY / CONFIDENTIAL. Use is subject to license terms.
* /

/ **
* StringPager, string tabs.
*
* @ Author Liuchangjiong
* @ Version 1.00 2004-10-10
* /
(Public class StringPager

/ ** Current page number * /
Private int currentPage = 1;

/ ** Paging needs of the long string * /
Private String text;

/ ** Characters per page, the default is 200 * /
Private int sizePerPage = 200;

/ ** Total number of pages * /
Private int totalPage;

Public StringPager () ()

/ **
* Return to the pages of string.
* @ Return
* /
Public String getCurrentPagedText () (
Try (
If (getCurrentPage () <getTotalPage ()) (
Return getText (). Substring ((getCurrentPage () - 1) * getSizePerPage (),
GetCurrentPage () * getSizePerPage ());
) Else if (getTotalPage ()> 0) (
Return getText (). Substring ((getCurrentPage () - 1) * getSizePerPage ());
)
) Catch (Exception e) (
E.printStackTrace ();
)
Return null;
)

/ **
* @ Return Returns the current page number.
* /
Public int getCurrentPage () (
If (currentPage <= 0) currentPage = 1;

Return currentPage;
)

/ **
* Set up the current page, from the beginning.
*
* @ Param currentPage
* The number to set the current page number.
* /
Public void setCurrentPage (int currentPage) (
If (currentPage <= 0) (
CurrentPage = 1;
)
This.currentPage = currentPage;
)

/ **
* @ Return Returns the total number of pages, if there is no data on a return.
* /
Public int getTotalPage () (
If (getText () == null) totalPage = 0;
TotalPage = (int) Math.ceil (1.0 * getText (). Length () / getSizePerPage ()) / / total number of pages

If (totalPage == 0)
TotalPage = 1;
Return totalPage;
)

/ **
* @ Param totalPage
* The totalPage to set.
* /
Public void setTotalPage (int totalPage) (
This.totalPage = totalPage;
)

Public static void main (String [] args) (
StringPager pager = new StringPager ();
Pager.setSizePerPage (5);
Pager.setText ( "12345678901");
Pager.setCurrentPage (2);

System.out.println (pager.getTotalPage ());
System.out.println (pager.getCurrentPagedText ());
)

/ **
* @ Return Returns the number of characters per page.
* /
Public int getSizePerPage () (
Return sizePerPage;
)

/ **
* @ Param sizePerPage
* The number of characters per page to set.
* /
Public void setSizePerPage (int sizePerPage) (
This.sizePerPage = sizePerPage;
)

/ **
* @ Return Returns the paging needs of the long string.
* /
Public String getText () (
Return text;
)

/ **
* @ Param text
* The need for paging long strings to set.
* /
Public void setText (String text) (
This.text = text;
)
)

Below are the jsp call: testpage.jsp (download)
</ Td> <td width="175" valign="top" class="ArticleTeitle">
</ Td> </ tr> <tr> <td height="25" colspan="2" valign="top" class="ArticleTeitle">