CalendarHTML.java

import java.util.*;
import java.util.regex.*;
import java.text.*;
import java.math.*;
import java.awt.geom.*;

public class CalendarHTML
{
	public String[] makeTable(int days, int start)
	{
		int[][] cal = new int[7][7];
		int rows = 0;
		for (int i = 0; i < 7; i++)
			for (int c = 0; c < 7; c++) 
				cal[i][c] = -1;

		int row = 0;
		int col = start;
		int day = 1;
		int used = 1;
		while (days > 0)
		{
			cal[row][col] = day++;
			days--;
			col++;
			if (col == 7)
			{
				row++;
				col = 0;
				if (days > 0)
					used++;
			}
		}
		ArrayList a = new ArrayList();
		a.add("<table>");
		a.add("<tr><td>S</td><td>M</td><td>T</td><td>W</td><td>T</td><td>F</td><td>S</td></tr>");
		for (int i = 0; i < used; i++)
		{
			String tr = "<tr>";
			for (int c = 0; c < 7; c++)
			{
				String td = "<td>" + (cal[i][c]==-1?"":(""+cal[i][c])) + "</td>";
				tr += td;
			}
			tr += "</tr>";
			a.add(tr);
		}		
		a.add("</table>");
		return (String[]) a.toArray(new String[0]);		
	}
	
	public static void main(String[] args)
	{
		long time;
		String[] answer;
		boolean errors = false;
		String[] desiredAnswer;
		
		boolean same;
		time = System.currentTimeMillis();
		answer = new CalendarHTML().makeTable(30, 3);
		System.out.println("Time: " + (System.currentTimeMillis()-time)/1000.0 + " seconds");
		desiredAnswer = new String[]{ "<table>",  "<tr><td>S</td><td>M</td><td>T</td><td>W</td><td>T</td><td>F</td><td>S</td></tr>",  "<tr><td></td><td></td><td></td><td>1</td><td>2</td><td>3</td><td>4</td></tr>",  "<tr><td>5</td><td>6</td><td>7</td><td>8</td><td>9</td><td>10</td><td>11</td></tr>",  "<tr><td>12</td><td>13</td><td>14</td><td>15</td><td>16</td><td>17</td><td>18</td></tr>",  "<tr><td>19</td><td>20</td><td>21</td><td>22</td><td>23</td><td>24</td><td>25</td></tr>",  "<tr><td>26</td><td>27</td><td>28</td><td>29</td><td>30</td><td></td><td></td></tr>",  "</table>" };
		System.out.println("Your answer:");
		if (answer.length > 0)
		{
			System.out.print("\t{ \"" + answer[0] + "\"");
			for (int i=1; i<answer.length; i++)
				System.out.print(",\n\t  \"" + answer[i] + "\"");
			System.out.println(" }");
		}
		else
			System.out.println("\t{ }");
		System.out.println("Desired answer:");
		if (desiredAnswer.length > 0)
		{
			System.out.print("\t{ \"" + desiredAnswer[0] + "\"");
			for (int i=1; i<desiredAnswer.length; i++)
				System.out.print(",\n\t  \"" + desiredAnswer[i] + "\"");
			System.out.println(" }");
		}
		else
			System.out.println("\t{ }");
		same = desiredAnswer.length == answer.length;
		for (int i=0; i<answer.length && same; i++)
			if (!answer[i].equals(desiredAnswer[i]))
				same = false;
		if (!same)
		{
			errors = true;
			System.out.println("DOESN'T MATCH!!!!");
		}
		else
			System.out.println("Match :-)");
		System.out.println();
		time = System.currentTimeMillis();
		answer = new CalendarHTML().makeTable(28, 0);
		System.out.println("Time: " + (System.currentTimeMillis()-time)/1000.0 + " seconds");
		desiredAnswer = new String[]{ "<table>",  "<tr><td>S</td><td>M</td><td>T</td><td>W</td><td>T</td><td>F</td><td>S</td></tr>",  "<tr><td>1</td><td>2</td><td>3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr>",  "<tr><td>8</td><td>9</td><td>10</td><td>11</td><td>12</td><td>13</td><td>14</td></tr>",  "<tr><td>15</td><td>16</td><td>17</td><td>18</td><td>19</td><td>20</td><td>21</td></tr>",  "<tr><td>22</td><td>23</td><td>24</td><td>25</td><td>26</td><td>27</td><td>28</td></tr>",  "</table>" };
		System.out.println("Your answer:");
		if (answer.length > 0)
		{
			System.out.print("\t{ \"" + answer[0] + "\"");
			for (int i=1; i<answer.length; i++)
				System.out.print(",\n\t  \"" + answer[i] + "\"");
			System.out.println(" }");
		}
		else
			System.out.println("\t{ }");
		System.out.println("Desired answer:");
		if (desiredAnswer.length > 0)
		{
			System.out.print("\t{ \"" + desiredAnswer[0] + "\"");
			for (int i=1; i<desiredAnswer.length; i++)
				System.out.print(",\n\t  \"" + desiredAnswer[i] + "\"");
			System.out.println(" }");
		}
		else
			System.out.println("\t{ }");
		same = desiredAnswer.length == answer.length;
		for (int i=0; i<answer.length && same; i++)
			if (!answer[i].equals(desiredAnswer[i]))
				same = false;
		if (!same)
		{
			errors = true;
			System.out.println("DOESN'T MATCH!!!!");
		}
		else
			System.out.println("Match :-)");
		System.out.println();
		time = System.currentTimeMillis();
		answer = new CalendarHTML().makeTable(31, 6);
		System.out.println("Time: " + (System.currentTimeMillis()-time)/1000.0 + " seconds");
		desiredAnswer = new String[]{ "<table>",  "<tr><td>S</td><td>M</td><td>T</td><td>W</td><td>T</td><td>F</td><td>S</td></tr>",  "<tr><td></td><td></td><td></td><td></td><td></td><td></td><td>1</td></tr>",  "<tr><td>2</td><td>3</td><td>4</td><td>5</td><td>6</td><td>7</td><td>8</td></tr>",  "<tr><td>9</td><td>10</td><td>11</td><td>12</td><td>13</td><td>14</td><td>15</td></tr>",  "<tr><td>16</td><td>17</td><td>18</td><td>19</td><td>20</td><td>21</td><td>22</td></tr>",  "<tr><td>23</td><td>24</td><td>25</td><td>26</td><td>27</td><td>28</td><td>29</td></tr>",  "<tr><td>30</td><td>31</td><td></td><td></td><td></td><td></td><td></td></tr>",  "</table>" };
		System.out.println("Your answer:");
		if (answer.length > 0)
		{
			System.out.print("\t{ \"" + answer[0] + "\"");
			for (int i=1; i<answer.length; i++)
				System.out.print(",\n\t  \"" + answer[i] + "\"");
			System.out.println(" }");
		}
		else
			System.out.println("\t{ }");
		System.out.println("Desired answer:");
		if (desiredAnswer.length > 0)
		{
			System.out.print("\t{ \"" + desiredAnswer[0] + "\"");
			for (int i=1; i<desiredAnswer.length; i++)
				System.out.print(",\n\t  \"" + desiredAnswer[i] + "\"");
			System.out.println(" }");
		}
		else
			System.out.println("\t{ }");
		same = desiredAnswer.length == answer.length;
		for (int i=0; i<answer.length && same; i++)
			if (!answer[i].equals(desiredAnswer[i]))
				same = false;
		if (!same)
		{
			errors = true;
			System.out.println("DOESN'T MATCH!!!!");
		}
		else
			System.out.println("Match :-)");
		System.out.println();
		
		if (errors)
			System.out.println("Some of the test cases had errors :-(");
		else
			System.out.println("You're a stud (at least on the test data)! :-D ");
	}
}

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