将1~100之间的所有正整数存放在一个List集合中,并将集合中索引位置是10的对象从集合中移除。
1 package org.hanqi.practise; 2 3 import java.util.*; 4 5 public class Test1 { 6 7 public static void main(String[] args) { 8 9 List<Object>list = new ArrayList<Object>(); 10 for(int i=1;i<=100;i++) 11 { 12 list.add(i); 13 } 14 System.out.println("遍历方式一:"); 15 for(int j=0;j<list.size();j++) 16 { 17 System.out.print(" "+list.get(j)); 18 } 19 System.out.println(); 20 System.out.println("遍历方式二:"); 21 for(Object t:list) 22 { 23 System.out.print(" "+t); 24 } 25 System.out.println(); 26 System.out.println("遍历方式三:"); 27 Iterator<Object> a = list.iterator(); 28 while (a.hasNext()) 29 { 30 Object b = a.next(); 31 System.out.print(" "+b); 32 } 33 System.out.println(); 34 System.out.println("移除索引位置为10的对象的结果:"); 35 list.remove(10); 36 for(Object t: list) 37 { 38 System.out.print(" "+t); 39 } 40 } 41 }
运行结果为: