package listp;

import java.util.*;

public class ListP {
       private Object a1;
       private Object a2;
       private Object a3;

      public ListP()  {
      }

       public ListP (Object a1) {
	     this(a1,null,null);
       }

       public ListP (Object a1,Object a2) {
	     this.a1=a1;
             this.a2=a2;
       }

       public ListP (Object a1,Object a2,Object a3) {
	     this.a1=a1;
	     this.a2=a2;
	     this.a3=a3;
       }

       public ArrayList fput (Object a1,Object a2) {
	   //リストa1の最初にa2を追加する
    	     ArrayList aa = (ArrayList)a2;
             aa.add(0,a1);
             return aa;
       }

       public ArrayList lput (Object a1,Object a2) {
	   //リストa1の最後にa1を追加する
    	     ArrayList aa = (ArrayList)a2;
             aa.add(a1);
             return aa;
       }

       public ArrayList bf (Object a1) {
	   //リストa1の最初の要素を取り去る。
   	     ArrayList aa = (ArrayList)a1;
             aa.remove(0);
             return aa;
       } 

//文字のとき
   public ArrayList insert(Object a1,Object a2) { 
       String s = (String)a1;
       ArrayList aa = (ArrayList)a2;
       int i;
       for (i=0; i<aa.size(); i++){
 	  if (s.compareTo(aa.get(i).toString()) <= 0) {
	      aa.add(i,s);
              return aa;
	   }
	}
	System.out.println(s + "より大きいものはリストにありません。");
	aa.add(i,s);
        return aa;
   }

//数値のとき
   public ArrayList insertn(Object a1,Object a2) { 
      String s=a1.toString();
      Integer n=Integer.decode(s);
      ArrayList aa = (ArrayList)a2;
      int i;
      for (i=0; i<aa.size(); i++){
// 	  int nn=Integer.parseInt(al.get(i).toString()); //数値のときは必要
 	  if (n.compareTo(Integer.decode(aa.get(i).toString())) <= 0) {
	      aa.add(i,n);
              return aa;
	   }
       }
       System.out.println(s + "より大きいものはリストにありません。");
	aa.add(i,s);
        return aa;
   }
	public ArrayList se(Object a1,Object a2) {
    	     ArrayList aa = (ArrayList)a1;
	     aa.add(a2);
             return aa;
	}

	public ArrayList se3(Object a1,Object a2,Object a3) {
    	     ArrayList aa = (ArrayList)a1;
	     aa.add(a2);
             aa.add(a3);
             return aa;
        }

	public ArrayList ss3(Object a1,Object a2,Object a3) {
    	     ArrayList aa = (ArrayList)a1;
	     ArrayList aa3 = (ArrayList)a3;
	     String aa2=a2.toString();
             if (aa2.length() > 0)
                   aa.add(aa2);
	     if (aa3.size() > 0) {
                  int n=aa.size();
                  for (int i=0; i < aa3.size(); i++) {
                       aa.add(n+i,aa3.get(i));
                  }                 
              }
              return aa;
	}

	public ArrayList sn3(Object a1,Object a2,Object a3) {
    	     ArrayList aa = (ArrayList)a1;
	     ArrayList aa3 = (ArrayList)a3;
   //          String as2=(String)a2;
             String as2=a2.toString();
             Integer aa2=Integer.decode(as2);
             if (as2.length() > 0)
                   aa.add(aa2);
	     if (aa3.size() > 0) {
                  int n=aa.size();
                  for (int i=0; i < aa3.size(); i++) {
                       aa.add(n+i,aa3.get(i));
                  }                 
              }
              return aa;
	}
}