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/* * @(#)ClsUsage.java 1.0 04/12/25 * * You can modify the template of this file in the * directory ../JCreator/Templates/Template_1/Project_Name.java * * You can also create your own project template by making a new * folder in the directory ../JCreator/Template/. Use the other * templates as examples. * */ package myprojects.clsusage; import java.util.*; class ClsUsage { public ClsUsage() { } public static void main(String args[]) { System.out.println("Starting ClsUsage..."); ISplitPage isp=new userPage(12); isp.firstPage(); while(isp.hasPages()) { isp.nextPage(); } } } interface ISplitPage { void firstPage(); void nextPage(); boolean hasPages(); } class dateObj { private String name; private int age; private boolean sex; private int id; public static int personID; static { personID=1000; } public dateObj(String na,int ag,boolean sx) { name=na;age=ag;sex=sx; id=dateObj.personID++; } public dateObj(String na,int ag) { name=na;age=ag;sex=true; id=dateObj.personID++; } public int getId() { return id; } public String getName() { return name; } public void setName(String na) { name=na; } public int getAge() { return age; } public void setAge(int dg) { age=dg; } public boolean isSex() { return this.sex; } public void setSex(boolean sx) { sex=sx; } public String toString() { return ""+id+"-"+name+"-"+age+"-"+sex; } } class userPage implements ISplitPage { // which can be accessed with itself or son //与自身或子类所在的包无关 protected int pageCount; protected int pageIndex; protected java.util.Vector list; public userPage(int pages) { if(pages<=0) this.pageCount=10; int age=20; boolean sex=false; list=new Vector(); for(int i=0;i<pages;i++) { String na=""+i+""; dateObj ob=new dateObj(na,age+i,sex); sex=!sex; list.addElement(ob); } this.pageCount=pages; this.pageIndex=1; } public void firstPage() { pageIndex=1; dateObj ob=(dateObj)list.get(pageIndex-1); System.out.println("第一页"+ob.toString()); } public void nextPage() { pageIndex++; if (pageIndex<=this.pageCount) { dateObj ob=(dateObj)list.get(pageIndex-1); System.out.println("第"+pageIndex+"页"+ob.toString()); } } public boolean hasPages() { return pageIndex<=pageCount; } } 返回类别: 教程 上一教程: java 学习笔记 下一教程: Java I/O API之性能分析 您可以阅读与"java接口用法学习----------------java菜鸟学飞第一步"相关的教程: · java接口用法学习----------------java菜鸟学飞第一步 · java 多态与抽象工厂-----------菜鸟学飞第二步 · java 多态与抽象工厂-----------菜鸟学飞第二步 · JAVA学习之踏上旅途的第一步 · Java学习之踏上旅途的第一步 |
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