package com.zuidaima.util;

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

public class Main {

	public static void main(String[] args) throws Exception {

		List<Column> columns = new ArrayList<Column>();

		List<Item> items = new ArrayList<Item>();
		Item item = new Item("1");
		items.add(item);

		item = new Item("2");
		items.add(item);

		item = new Item("3");
		items.add(item);

		item = new Item("4");
		items.add(item);

		item = new Item("5");
		items.add(item);

		item = new Item("6");
		items.add(item);

		item = new Item("7");
		items.add(item);

		item = new Item("8");
		items.add(item);

		item = new Item("9");
		items.add(item);

		Column column = null;
		for (int i = 0; i < items.size(); i++) {
			Item _item = items.get(i);
			if (i % 2 == 0) {
				column = new Column();
				column.setColumn1(_item);
				columns.add(column);
			} else {
				column.setColumn2(_item);
			}

		}

		for (int i = 0; i < columns.size(); i++) {
			System.out.println(columns.get(i));
		}

		System.out.println("----------------");

		List<Column3> column3s = new ArrayList<Column3>();

		Column3 column3 = null;
		for (int i = 0; i < items.size(); i++) {
			Item _item = items.get(i);
			int idx = i % 3;// 阬迪沔
			int div = i / 3;// 阬吹
			if (idx == 0) {
				column3 = new Column3();
				column3.setColumn1(_item);
				column3s.add(column3);
			} else {
				column3 = column3s.get(div);
				idx++;// 可珍1
				if (idx == 2) {
					column3.setColumn2(_item);
				} else if (idx == 3) {
					column3.setColumn3(_item);
				}
			}

		}

		for (int i = 0; i < column3s.size(); i++) {
			System.out.println(column3s.get(i));
		}

		System.out.println("----------------");

		List<ColumnN> columnNs = new ArrayList<ColumnN>();

		int n = 4;
		ColumnN columnN = null;
		for (int i = 0; i < items.size(); i++) {
			Item _item = items.get(i);
			int idx = i % n;// 阬迪沔
			int div = i / n;// 阬吹
			if (idx == 0) {
				columnN = new ColumnN(n);
				columnN.getColumnNs().add(0, _item);
				columnNs.add(columnN);
			} else {
				columnN = columnNs.get(div);
				columnN.getColumnNs().add(idx, _item);
			}

		}

		for (int i = 0; i < columnNs.size(); i++) {
			System.out.println(columnNs.get(i));
		}

	}

	public static class Item {
		public String id;

		public Item(String id) {
			this.id = id;
		}

		@Override
		public String toString() {
			return id;
		}

	}

	public static class Column {
		private Item column1;
		private Item column2;

		public Item getColumn1() {
			return column1;
		}

		public void setColumn1(Item column1) {
			this.column1 = column1;
		}

		public Item getColumn2() {
			return column2;
		}

		public void setColumn2(Item column2) {
			this.column2 = column2;
		}

		@Override
		public String toString() {
			String id1 = column1.id;
			String id = id1;
			if (column2 != null) {
				String id2 = column2.id;
				id += " " + id2;
			}

			return id;
		}

	}

	public static class Column3 {
		private Item column1;
		private Item column2;
		private Item column3;

		public Item getColumn1() {
			return column1;
		}

		public void setColumn1(Item column1) {
			this.column1 = column1;
		}

		public Item getColumn2() {
			return column2;
		}

		public void setColumn2(Item column2) {
			this.column2 = column2;
		}

		public Item getColumn3() {
			return column3;
		}

		public void setColumn3(Item column3) {
			this.column3 = column3;
		}

		@Override
		public String toString() {
			String id1 = column1.id;
			String id = id1;
			if (column2 != null) {
				String id2 = column2.id;
				id += " " + id2;
			}

			if (column3 != null) {
				String id3 = column3.id;
				id += " " + id3;
			}

			return id;
		}

	}

	public static class ColumnN {
		private List<Item> columnNs;
		private int n;

		public ColumnN(int n) {
			columnNs = new ArrayList<Item>(n);
		}

		public List<Item> getColumnNs() {
			return columnNs;
		}

		public void setColumnNs(List<Item> columnNs) {
			this.columnNs = columnNs;
		}

		public int getN() {
			return n;
		}

		public void setN(int n) {
			this.n = n;
		}

		@Override
		public String toString() {
			String id = "";
			for (Item item : columnNs) {
				id += item.id + " ";
			}

			return id.trim();
		}
	}

}