Immutable Collection Javaライブラリの実装更新

	import java.util.*;
	/*
	* Stone.java
	*
	* class to support immutable collection handling
	*
	* @author kei sugano
	*
	*
	*/
	public class Stone {
	public static <T> List<T> newList(T e){
	List<T> list = new ArrayList<T>(){{ add(e); }};
	return list;
	}
	public static <T> List<T> newList(T e, T e2){
	return push(newList(e), e2);
	}
	public static <T> List<T> newList(T e, T e2, T e3){
	return push(newList(e, e2), e3);
	}
	public static <T> List<T> newList(T e, T e2, T e3, T e4){
	return push(newList(e, e2, e3), e4);
	}
	public static <T> List<T> newList(T e, T e2, T e3, T e4, T e5){
	return push(newList(e, e2, e3, e4), e5);
	}
	public static <T> List<T> newList(T e, T e2, T e3, T e4, T e5, T e6){
	return push(newList(e, e2, e3, e4, e5), e6);
	}
	public static <T> List<T> concatList(List<T> list1, List<T> list2){
	List<T> _list = new ArrayList<T>();
	_list.addAll(list1);
	_list.addAll(list2);
	return _list;
	}
	public static <T> List<T> toList(T[] args){
	return Arrays.asList(args);
	}
	public static <T> List<T> push(List<T> list, T elem){
	List<T> _list = new ArrayList<T>();
	for(T t : list)
	_list.add(t);
	_list.add(elem);
	return _list;
	}
	public static <T> T get(List<T> list, Integer i){
	return list.get(i);
	}
	public static <T> void puts(T text){
	System.out.println(text);
	}
	public static <T> void puts(List<T> list){
	System.out.print("[");
	for(T t : list)
	System.out.print(t.toString() + ",");
	System.out.print("]");
	System.out.println("");
	}
	}

view raw Stone.java hosted with ❤ by GitHub

（スマホでは見れないかも）

俺天才過ぎ（確信）

	import java.util.*;
	public class Main{
	public static void main(String args[]){
	Stone.puts(Stone.get(Stone.push(Stone.toList(args), "aaa"), 0));
	immutableListTest(args);
	concatListTest();
	}
	private static <T> void immutableListTest(String args[]){
	List<String> immutableList = Stone.toList(args);
	immutableList = Stone.push(immutableList, "hahaha");
	for(String t: immutableList)
	Stone.puts(t);
	}
	public static void concatListTest(){
	List<Integer> _list1 = new ArrayList<Integer>(){{add(1); }};
	Stone.puts(Stone.concatList(Stone.newList(1, 2), Stone.newList(3)));
	Stone.puts(Stone.concatList(Stone.newList(4,5,6), Stone.newList(7)));
	Stone.puts(Stone.concatList(Stone.newList("a","b","c","d","e", "f"), Stone.newList("i")));
	}
	}

view raw Main.java hosted with ❤ by GitHub

呼び出し側 https://github.com/keitaroemotion/Stone