Vector和Hashtable的使用:

    技术2026-08-09  5

    Vector例子:可以往向量中添加各种类型的数据

     

    class MyVector extends Vector...{    public MyVector()    ...{        super(1,1);    }    public void addInt(int i)    ...{        addElement(new Integer(i));    }    public void addString(String s)    ...{        addElement(s);    }    public void printVector()    ...{        Object o;        int len=size();        System.out.println("the size of Vector is :"+len);        for(int i=0;i<len;i++)        ...{            o=elementAt(i);            System.out.println(o.toString());        }    }}

    本文来自博客,转载请标明出处:http://blog.csdn.net/DavidLove/archive/2006/10/10/1329337.aspx

     

    Hashtable例子:统计网站访问次数,根据用户名来统计

    Hashtable userTable=new Hashtable();public int getCount(String userName)...{     Integer count=(Integer)userTable.get(userName);     if(count==null)     ...{          int nowCount=count.IntValue()+1;          userTable.put(userName,new Integer(nowCount));          return nowCount;     }     userTable.put(userName,new Integer(1));     return 1;}

    本文来自博客,转载请标明出处:http://blog.csdn.net/DavidLove/archive/2006/10/10/1329337.aspx

     

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