NasaStarsProject.java

/*
 * Name: Janan Patel
 * Date: 10/5/2021
 * Course Number: CSC-220
 * Course Name: Data Structures and Algorithms
 * Problem Number: HW5
 * Email: [email protected]
 * Algorithm Description:  
 *    Using information from a website to draw stars on the output
 *    
 */
import java.io.IOException;

import java.net.MalformedURLException;
import java.net.URL;
import java.util.Scanner;

import java.util.Scanner;

public class NasaStarsProject {
	private final static String TITLE = "The NASA Star Analyzing program";
	private final static String CONTINUE_PROMPT = "Do this again? [y/N] ";
	static String urlStr;
	static String symbols = "---";

	// **********************************************
	// Put as many methods you need here
	private static int getRow() throws IOException {
		URL url = new URL(urlStr);
		Scanner sc = new Scanner(url.openStream());

		int row = sc.nextInt();
		sc.close();
		return row;

	}

	private static int getColumn() throws IOException {
		URL url = new URL(urlStr);
		Scanner sc = new Scanner(url.openStream());

		int temp = sc.nextInt();
		int column = sc.nextInt();
		sc.close();
		return column;

	}

	private static int[][] readData(Scanner sc) throws MalformedURLException, IOException {

		int rows = sc.nextInt();
		int columns = sc.nextInt();

		int[][] array = new int[rows][columns];
		for (int i = 0; i < rows; i++) {
			for (int j = 0; j < columns; j++) {
				array[i][j] = sc.nextInt();

			}

		}

		sc.close();
		return array;
	}

	static char[][] analyzeStarData(int stardata[][]) throws IOException {
		// Method is going to be made to ignore the outside values (0's on the outside)
		// hence why I do (row-2) and (column-2) for the array

		int row = getRow();
		int column = getColumn();

		char[][] pattern = new char[row - 2][column - 2];

		for (int i = 1; i < row - 1; i++) {
			for (int j = 1; j < column - 1; j++) {
				if ((Math.floor(stardata[i][j] + (stardata[i - 1][j] + stardata[i - 1][j + 1] + stardata[i][j + 1]
						+ stardata[i + 1][j + 1] + stardata[i + 1][j] + stardata[i + 1][j - 1] + stardata[i][j - 1]
						+ stardata[i - 1][j - 1])) / 5) > 6) {

					pattern[i - 1][j - 1] = '*';

				} else
					pattern[i - 1][j - 1] = ' ';

			}

		}

		return pattern;

	}

	static void outputStarData(char pattern[][]) {
		// was made on purpose to not read any of the exterior 0's.
		// therefore the stars might look like they are closer to the edge than they
		// would be in the data set
		// the output only outputs the inside square since we were suppose to ignore the
		// outside 0's.
		System.out.println("\nHERE IS THE PATTERN\n"
				+ "-------------------");
		int row = pattern.length;
		int column = pattern[0].length;

		int i1 = 0;
		for (int i = 0; i < row; i++) {
			System.out.println();

			for (int j = 0; j < column; j++) {

				System.out.print("+");
				System.out.print(symbols);

				if (j == column - 1) {
					System.out.print("+");
				}

			}
			System.out.println();

			for (int j = 0; j < column; j++) {

				System.out.print("| " + pattern[i1][j] + " ");

				if (j == column - 1) {
					System.out.print("|");

				}

			}
			i1++;

		}
		System.out.println();
		for (int j = 0; j < column; j++) {

			System.out.print("+");
			System.out.print(symbols);

			if (j == column - 1) {
				System.out.print("+");
			}

		}
	}

	// **********************************************
	// Start your logic coding in the process method
	private static void process(Scanner input, String args[]) throws Exception {
		System.out.println("\nHere are a couple links that you can copy and paste:\n"
				+ "https://cs.stcc.edu/wp-content/uploads/2018/10/StarData1.txt\n"
				+ "https://cs.stcc.edu/wp-content/uploads/2018/10/StarData2.txt\n"
				+ "https://cs.stcc.edu/wp-content/uploads/2018/10/StarData3.txt\n");
		System.out.println("Please enter your link to the dataset: ");
		
		System.out.println("-----------------------------------------");
		
		@SuppressWarnings("resource")
		Scanner sc1 = new Scanner(System.in);
		urlStr = sc1.next();
		
		
		URL url = new URL(urlStr);
		Scanner sc = new Scanner(url.openStream());
		outputStarData(analyzeStarData(readData(sc)));
		
	}

	// **********************************************
	// Do not change the doThisAgain method
	private static boolean doThisAgain(Scanner input, String prompt) {
		System.out.println();
		System.out.print(prompt);
		String doOver = input.nextLine();
		return doOver.trim().equalsIgnoreCase("Y");
	}

	// **********************************************
	// Do not change the main method
	public static void main(String args[]) throws Exception {
		System.out.println("Welcome to " + TITLE);
		Scanner input = new Scanner(System.in);
		do {
			process(input, args);
		} while (doThisAgain(input, CONTINUE_PROMPT));
		input.close();
		System.out.println();
		System.out.println("Thank you for using " + TITLE);
	}

}