集合类练习

package org.hanqi.array;

import java.util.*;

public class Test {

    public static void main(String[] args) {
        
        List<Object>  a=new ArrayList<Object>();
        
        for(int i=1;i<=100;i++)
        {
            a.add(i);
        }
        
        System.out.println("遍历方式一");
        for(Object t: a)
        {
            System.out.print(" "+t);
        }
        System.out.println("");
        
        System.out.println("遍历方式二");
    
        for(int j=0;j<a.size();j++)
        {
            System.out.print(" " +a.get(j));
        }
        System.out.println("");
        
        System.out.println("遍历方式三:迭代器");
        
        Iterator it=a.iterator();
        
        while(it.hasNext())
        {
            Object t=it.next();
            
            System.out.print(" " +t);
        }
        
        System.out.println("");
        
        System.out.println("移除索引位置为10的对象的结果：");
        
        //移除索引位置为10的对象
        
        a.remove(10);
        
        for(Object t: a)
        {
            System.out.print(" "+t);
        }
    }

}