List接口

add remove set get 方法

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class ListDemo {

	public static void main(String[] args) {
		
		List<String> list = new ArrayList<String>();
		
		list.add("下滑");
		list.add("sb");
		list.add("sha");
		list.remove("sb");
		System.out.println(list);
		
		list.set(0, "huahua");
		System.out.println(list);
		System.out.println(list.size());
		
		System.out.println(list.get(0));
		// 构建迭代器
		Iterator<String> it = list.iterator();
		while(it.hasNext()) {
			 String str = it.next();
			 System.out.println(str+"     it");
		}

	}

}