filldatautil.java

来自「图书借阅系统」· Java 代码 · 共 21 行

package com.lib.util;
import java.util.ArrayList;
public class FillDataUtil extends ArrayList
{
 public FillDataUtil(Class  clazz)
 {
  this.clazz = clazz;
 }
 public Object get(int i)
 {
  try
   {
    for(;size()<i+1;add(clazz.newInstance()));
   }
   catch(Exception e)
   {}
   return super.get(i);
 }
 private Class clazz;
}