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);
}
}

}