java,arraylist问题，谢谢解答

Question

public class menuModel {

    private String MenuTop;
    private String MenuTitle;
    private ArrayList<String,String> MenuOpt; //想让MenuOpt一次保存两条数据，语法貌似不对，怎么写呢？谢谢解答
}

Answer 1

class towString{
public string s1;
public string s2;
void towString(string s1,string s2){
this.s1 = s1;
this.s2 = s2;
}
}
public class menuModel {
private String MenuTop;
private String MenuTitle;
private towString towStr = new towString(MenuTow,MenuTitle);
private ArrayList MenuOpt;
MenuOpt.add(towStr);