Upload the completed verion of golfscore

Week9/Assignment9/.classpath

@@ -1,10 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
+	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-14">
 		<attributes>
 			<attribute name="module" value="true"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="lib" path="class"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>

Week9/Assignment9/course-db.csv

@@ -0,0 +1,4 @@
+course-01,5,4,4,3,4,4,5,3,4,5,4,3,4,4,4,3,4,5
+course-02,4,4,3,4,5,3,5,4,4,4,5,3,5,4,4,3,4,4
+course-03,4,3,4,4,4,5,3,5,4,5,4,3,4,4,4,3,4,5
+course-04,4,3,4,5,4,5,3,4,4,4,5,4,3,4,5,3,4,4

Week9/Assignment9/src/CSVUtility.java

@@ -9,6 +9,7 @@ public class CSVUtility {
 
 	/**
 	 * reads all lines in given filename into an array of String
+	 * 
 	 * @param filename
 	 * @return array of String, each element in array is each line in file
 	 * @throws FileNotFoundException
@@ -17,26 +18,36 @@ public class CSVUtility {
 		// ENTER CODE HERE
 		Scanner sc = new Scanner(new File(filename));
 		int length = 0;
-		for(length = 0;sc.hasNext();length++)sc.nextLine();
+		for (length = 0; sc.hasNext(); length++)
+			sc.nextLine();
 		String[] filedata = new String[length];
 		sc = new Scanner(new File(filename));
-		sc = new Scanner(new File(filename)).useDelimiter(",");
-		for(int i = 0;i<=length;i++)filedata[i]=sc.next();
+		for (int i = 0; i < length; i++)
+			filedata[i] = sc.nextLine();
 		return filedata;
 	}
 
 	/**
 	 * read given CSV file into 2D array of String
+	 * 
 	 * @param filename CSV file
-	 * @param header true if CSV file has a header line.  The first line is header. The data start from second line.
+	 * @param header   true if CSV file has a header line. The first line is header.
+	 *                 The data start from second line.
 	 * @return
 	 * @throws FileNotFoundException
 	 */
 	public static String[][] readCSV(String filename, boolean header) throws FileNotFoundException {
 		// ENTER CODE HERE
-		return null;
-	}
-
-
+		String[] data = readFile(filename);
+		int lineOffset = header ? 1 : 0;
+		int maxElement = 0;
+		for (int i = lineOffset; i < data.length; i++)
+			maxElement = Math.max(data[i].split(",").length, maxElement);
+		String[][] csv = new String[data.length - lineOffset][maxElement];
+		for (int i = lineOffset; i < data.length; i++)
+			csv[i - lineOffset] = data[i].split(",");
+		return csv;
+
+	}
 
 }

Week9/Assignment9/src/CSVUtilityGiven.java

@@ -1,51 +0,0 @@
-//
-// Source code recreated from a .class file by SNLinter
-// (powered by FernFlower decompiler)
-//
-
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.util.ArrayList;
-import java.util.Scanner;
-
-public class CSVUtilityGiven {
-    public CSVUtilityGiven() {
-    }
-
-    public static String[] readFile(String var0) throws FileNotFoundException {
-        Scanner var1 = new Scanner(new File(var0));
-        ArrayList var2 = new ArrayList();
-
-        while(var1.hasNext()) {
-            var2.add(var1.nextLine());
-        }
-
-        var1.close();
-        String[] var3 = new String[var2.size()];
-
-        for(int var4 = 0; var4 < var3.length; ++var4) {
-            var3[var4] = (String)var2.get(var4);
-        }
-
-        return var3;
-    }
-
-    public static String[][] readCSV(String var0, boolean var1) throws FileNotFoundException {
-        String[] var2 = readFile(var0);
-        int var3 = var1 ? 1 : 0;
-        String[][] var4 = new String[var2.length - var3][];
-        int var5 = 0;
-
-        for(int var6 = var3; var5 < var4.length; ++var6) {
-            var4[var5] = var2[var6].split(",");
-            ++var5;
-        }
-
-        return var4;
-    }
-
-    public static void main(String[] var0) throws FileNotFoundException {
-        ArrayUtility.show(readCSV("course-db.csv", false));
-        ArrayUtility.show(readCSV("golf-score.csv", false));
-    }
-}

Week9/Assignment9/src/GolfScore.java

@@ -0,0 +1,270 @@
+
+//package solution;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.text.DecimalFormat;
+import java.util.Arrays;
+import java.util.Scanner;
+
+public class GolfScore {
+	public static void main(String[] args) {
+
+		// uncomment each testXXX() method to test that the corresponding method works
+		// properly
+		// when finish uncomment run()
+
+		// testGetGolfers();
+
+		// testGetScores();
+
+		// testGetCourseName();
+
+		// testGetCoursePar();
+
+		// testCalculateScore();
+
+		// testCalculateHandicap();
+
+		String filename = args.length == 0 ? "golf-score-1.csv" : args[0];
+		run(filename);
+	}
+
+	public static void run(String scoreFile) {
+		// 1. get golfer's names from golf-score-1.csv
+		String[] golfers = getGolfers(scoreFile);
+
+		// 2. get golfer's scores from golf-score-1.csv
+		int[][] golfScoreList = getScores(scoreFile);
+
+		// 3. get course name from golf-score-1.csv
+		String courseName = getCourseName(scoreFile);
+
+		// 4. get course par from course-db.csv
+		int[] coursePar = getCoursePar("course-db.csv", courseName);
+
+		// 5. calculate out, in, and total for each golfer
+		int[][] scores = calculateScore(golfScoreList);
+
+		// 6. calculate handicap for each golfer
+		int[] hc = calculateHandicap(golfScoreList, coursePar);
+
+		// 7. print the result: golfer's name, out, in, total, hc
+		printResult(golfers, scores, hc);
+
+	}
+
+	/**
+	 * get golfers name from given CSV file using provided CSVUtility class golfer's
+	 * name are the first elements in each sub array
+	 * 
+	 * Each line of CSV file is in format: golfer's
+	 * name,h1,h2,h3,h4,h5,h6,h7,h8,h9,h10,h11,h12,h13,h14,h15,h16,h17,h18
+	 * 
+	 * @param csvFilename csv file that contain golfers and their scores
+	 * @return all golfer's names in array of String
+	 */
+	public static String[] getGolfers(String csvFilename) {
+		String[][] data;
+		try {
+			data = CSVUtility.readCSV(csvFilename, true);
+			String[] golfers = new String[data.length];
+			for (int i = 0; i < data.length; i++)
+				golfers[i] = data[i][0];
+			return golfers;
+		} catch (FileNotFoundException e) {
+			e.printStackTrace();
+		}
+		return new String[0];
+	}
+
+	/**
+	 * get all score from CSV file
+	 * 
+	 * @param csvFilename csv file that contains golfers and their scores
+	 * @return 2D array of int that each element contains scores of each golfer
+	 */
+	public static int[][] getScores(String csvFilename) {
+		// ENTER CODE HERE
+		try {
+			String[][] data = CSVUtility.readCSV(csvFilename, true);
+			int[][] score = new int[data.length][data[0].length - 1];
+			for (int i = 0; i < data.length; i++)
+				for (int j = 1; j < data[i].length; j++)
+					score[i][j - 1] = Integer.parseInt(data[i][j]);
+			return score;
+		} catch (FileNotFoundException e) {
+			e.printStackTrace();
+		}
+		return new int[0][0];
+	}
+
+	/**
+	 * gets course name for csv file. Course name is the first line.
+	 * 
+	 * @param csvFilename
+	 * @return
+	 */
+	public static String getCourseName(String csvFilename) {
+		try {
+			return CSVUtility.readFile(csvFilename)[0];
+		} catch (FileNotFoundException e) {
+			e.printStackTrace();
+		}
+		return null;
+	}
+
+	/**
+	 * gets course 18-hole par for given course name extracted from csv file
+	 * 
+	 * @param csvFilename
+	 * @param courseName
+	 * @return
+	 */
+	public static int[] getCoursePar(String csvFilename, String courseName) {
+		// ENTER CODE HERE
+		String[][] data;
+		try {
+			data = CSVUtility.readCSV(csvFilename, false);
+		} catch (FileNotFoundException e) {
+			e.printStackTrace();
+			return new int[0];
+		}
+		for (int i = 0; i < data.length; i++) {
+			if (courseName.equals(data[i][0])) {
+				int[] pars = new int[data[i].length - 1];
+				for (int j = 1; j < data[i].length; j++)
+					pars[j - 1] = Integer.parseInt(data[i][j]);
+				return pars;
+			}
+		}
+		return new int[0];
+	}
+
+	/**
+	 * calculate handicap using System-36
+	 * 
+	 * @param scores
+	 * @param par
+	 * @return handicap of all golfers
+	 */
+	public static int[] calculateHandicap(int[][] scores, int[] par) {
+		// ENTER CODE HERE
+		int hc[] = new int[scores.length];
+		for (int i = 0; i < scores.length; i++)
+			for (int j = 0; j < scores[i].length; j++)
+				hc[i] += calculateHoleHandicap(par[j], scores[i][j]);
+		return hc;
+
+	}
+
+	/**
+	 * calculate handicap for a hole from par and player's score
+	 * 
+	 * @param par   hole's par number (3, 4, or 5)
+	 * @param score player's score
+	 * 
+	 * @return calculated handicap, 0 if score - par is 0, 1 if score - par is equal
+	 *         to 1 and 2 otherwise
+	 */
+	public static int calculateHoleHandicap(int par, int score) {
+		// ENTER CODE HERE
+		if (score - par == 1)
+			return 1;
+		if (score - par >= 2)
+			return 2;
+		return 0;
+	}
+
+	/**
+	 * calculates: sum(hole1 to hole9) -> out sum(hole10 to hole18) -> in out + in
+	 * -> total
+	 * 
+	 * @param golfScoreList
+	 * @return out, in, total for all players
+	 */
+	public static int[][] calculateScore(int[][] golfScoreList) {
+		// ENTER CODE HERE
+		int[][] playerScores = new int[golfScoreList.length][3];
+		for (int i = 0; i < playerScores.length; i++) {
+			for (int j = 0; j < 9; j++)
+				playerScores[i][0] += golfScoreList[i][j];
+			for (int j = 0; j < 9; j++)
+				playerScores[i][1] += golfScoreList[i][j + 9];
+			playerScores[i][2] = playerScores[i][0] + playerScores[i][1];
+		}
+		return playerScores;
+	}
+
+	public static void printResult(String[] golfers, int[][] scores, int[] hc) {
+		System.out.println("    Name:\tOUT\tIN\tTOTAL\tHC");
+		System.out.println("------------------------------------------");
+		for (int i = 0; i < golfers.length; i++) {
+			int out = scores[i][0];
+			int in = scores[i][1];
+			int total = scores[i][2];
+			System.out.format("%s:\t%d\t%d\t%d\t%d\n", golfers[i], out, in, total, hc[i]);
+		}
+	}
+
+	// test methods
+
+	private static void testGetGolfers() {
+		String[] golfers = getGolfers("golf-score-1.csv");
+		System.out.println("Expected:");
+		System.out.println("[Player01, Player02, Player03, Player04, Player05, "
+				+ "Player06, Player07, Player08, Player09, Player10]");
+		ArrayUtility.show(golfers);
+	}
+
+	private static void testGetScores() {
+		int[][] scores = getScores("golf-score-1.csv");
+		int[][] expected = { { 4, 4, 6, 3, 4, 5, 4, 6, 6, 6, 3, 5, 4, 6, 4, 4, 3, 6 },
+				{ 4, 5, 6, 4, 5, 4, 5, 4, 8, 9, 4, 5, 5, 6, 5, 4, 4, 5 },
+				{ 4, 5, 5, 4, 6, 5, 5, 5, 7, 6, 3, 6, 4, 6, 5, 5, 4, 5 },
+				{ 5, 6, 4, 3, 5, 4, 4, 4, 6, 5, 2, 7, 4, 7, 5, 7, 4, 6 },
+				{ 4, 3, 4, 4, 4, 5, 4, 4, 5, 5, 4, 5, 5, 5, 5, 4, 5, 4 },
+				{ 3, 4, 4, 3, 3, 4, 4, 4, 5, 5, 4, 5, 3, 5, 3, 4, 3, 6 },
+				{ 6, 4, 6, 4, 5, 5, 5, 3, 6, 4, 4, 5, 4, 5, 5, 5, 3, 4 },
+				{ 4, 6, 5, 3, 4, 6, 4, 3, 4, 4, 2, 5, 4, 5, 4, 4, 3, 4 },
+				{ 5, 5, 8, 4, 5, 4, 4, 3, 5, 5, 4, 5, 3, 6, 6, 5, 4, 5 },
+				{ 5, 4, 5, 3, 4, 4, 4, 2, 5, 5, 3, 6, 4, 5, 4, 6, 5, 5 } };
+		ArrayUtility.show(scores);
+		System.out.println("Comparing with Expected:");
+		for (int i = 0; i < expected.length; i++) {
+			System.out.print(Arrays.compare(expected[i], scores[i]) + " ");
+		}
+		System.out.println();
+		System.out.println("0 0 0 0 0 0 0 0 0 0 - expected compare result");
+	}
+
+	private static void testGetCourseName() {
+		String courseName = getCourseName("golf-score-1.csv");
+		System.out.println("Expected: course-02");
+		System.out.println(courseName);
+	}
+
+	private static void testGetCoursePar() {
+		int[] coursePar = getCoursePar("course-db.csv", "course-02");
+		System.out.println("[4, 4, 3, 4, 5, 3, 5, 4, 4, 4, 5, 3, 5, 4, 4, 3, 4, 4] - expected");
+		ArrayUtility.show(coursePar);
+	}
+
+	private static void testCalculateScore() {
+		int[][] golfScoreList = getScores("golf-score-1.csv");
+		int[][] scores = calculateScore(golfScoreList);
+		int[][] expected = { { 42, 41, 83 }, { 45, 47, 92 }, { 46, 44, 90 }, { 41, 47, 88 }, { 37, 42, 79 },
+				{ 34, 38, 72 }, { 44, 39, 83 }, { 39, 35, 74 }, { 43, 43, 86 }, { 36, 43, 79 } };
+		ArrayUtility.show(expected);
+		System.out.println("---");
+		ArrayUtility.show(scores);
+	}
+
+	private static void testCalculateHandicap() {
+		int[][] scores = { { 4, 4, 6, 3, 4, 5, 4, 6, 6, 6, 3, 5, 4, 6, 4, 4, 3, 6 },
+				{ 4, 5, 6, 4, 5, 4, 5, 4, 8, 9, 4, 5, 5, 6, 5, 4, 4, 5 },
+				{ 4, 5, 5, 4, 6, 5, 5, 5, 7, 6, 3, 6, 4, 6, 5, 5, 4, 5 } };
+		int[] par = { 4, 4, 3, 4, 5, 3, 5, 4, 4, 4, 5, 3, 5, 4, 4, 3, 4, 4 };
+		System.out.println("[17, 15, 19] - expected");
+		ArrayUtility.show(calculateHandicap(scores, par));
+	}
+}