ArrayList集合

package arrayListDemo;
import java.util.*;
import java.util.Scanner;;
public class ArrayListDemo {
	public static void main(String[] args) {
		
	ArrayList<String> chaoba = new ArrayList<String>();//定义动态数组，动态数组字符串
	chaoba.add("超霸22");
	chaoba.add("超霸333");
	Arry ss=new Arry();
	ss.scanfAdd(chaoba);
	ss.scanfRemove(chaoba);
	ss.scanfSet(chaoba);
	for(String ch:chaoba)
	{
		System.out.println(ch);
	}

	}

}

class Arry
{	
	Scanner sr=new Scanner(System.in);

	public void add(ArrayList chaoba,String s)
	{
		chaoba.add(s);
		Arry.print(chaoba);
	}
	public void remove(ArrayList chaoba,String s)
	{
		chaoba.remove(s);
		Arry.print(chaoba);
	}
	public void set(ArrayList chaoba,int x,String s)
	{
		chaoba.set(x, s);
		Arry.print(chaoba);
	}
	public void scanfAdd(ArrayList chaoba)
	{	Arry ss=new Arry();
		System.out.println("请输入插入内容");
		String s=sr.next();
		ss.add(chaoba, s);
		
	}
	public void scanfRemove(ArrayList chaoba)
	{	Arry ss=new Arry();
		System.out.println("请输入删除内容");
		String s=sr.next();
		ss.remove(chaoba, s);
		
	}
	public void scanfSet(ArrayList chaoba)
	{	Arry ss=new Arry();
		System.out.println("请输入修改坐标");
		int x=sr.nextInt();
		System.out.println("请输入被修改成的内容");
		String s=sr.next();
		ss.set(chaoba, x, s);
		
	}
	static void print(ArrayList chaoba)
	{
		System.out.println(chaoba);
	}
	}