From 8ce87145b8b6e2c2465c446cf8e96403dc53ab5c Mon Sep 17 00:00:00 2001
From: Siwat Sirichai <siwat@siwatinc.com>
Date: Thu, 29 Oct 2020 14:27:38 +0700
Subject: [PATCH] Add comments to GolfScore.java

---
 Week9/Assignment9/bin/GolfScore.class | Bin 6939 -> 6947 bytes
 Week9/Assignment9/src/GolfScore.java  |  59 +++++++++++++-------------
 2 files changed, 30 insertions(+), 29 deletions(-)

diff --git a/Week9/Assignment9/bin/GolfScore.class b/Week9/Assignment9/bin/GolfScore.class
index 7d945233f507478262e12524703645fb6e58e737..b9ffb994eda9a97ad23aa464667026246dafabb3 100644
GIT binary patch
delta 568
zcmW-dOGs347{!0z{g2&ou6J~Xazcw3QY%ZM&9n-MYSMJ*VcKFSqm8y{)g}V%MGpu!
zcU94*h&E;u7ovquB@$)NMI{NDy)=^^WKvV;^x5M3A2|PW&Ug4OBrYd1X~$|@>Fst7
ziTFcKMvB)EU>?v~ZEmqK<y~^?+pkiTT6L2xrZ<$C8!Q!UVh0T*+4>(1A>|Ud`gUkQ
zCk{u5ag;d6SjKVIDsJF}Iy%*JiY898i!-D-t6HeT_G-hibUoYHt{Z}E*5oFPCREbS
zdM#GL680)rpc7;#&8jO?Zx!|oj!lcqP;RqdqB$HZuNupqBgzq*hM<2VY)PaWn`;!(
zLkZW3lJN$LyI1t8xKHb6mAS2JvMlEgHQZ&LVv>GZ^uLt>?_9}f{JyFmsDF?JJY*4%
zSjuCndBPs$+IZ%jk6etr&_lc=%n+r#(xStDU9>ikdad*b2Y92FQK{jrbn#9mcyA^7
zU|r#(F^rjgjGI12OqNfkp9wR_XY-Uv^Ib8=7nA2}z~-Cxy!4>^LldWT(NC>2?KQ_5
z-QQX;rv?8opTB-jY_-H^Rg}jOI4r`L;<#8$ieX9u{E`BHcHyur4$>xt+>?-0NKh)p
Rkq#-6lj2I3guUsqs(;v1g~k8?

delta 579
zcmXYuOGs347{!0z{ZDhp8OKygQHzi=QW^>ZcOg+IW>aS6Mr@*uwQ1ERf~+Vj2sann
zM2m`Ok=4L}6sf(ShZ%0N7h3kx>_uf@hGs`-^FQaF?{&WKp07MznQn@C$>l+FY@d0V
zXR)-EloKKhq$=Ds)+H~Jy)n_rde;?A2dCn-t+NDELYOS-a74u`iR*2Zc2M7k$l);g
z9HEe-ET)YF$5_R2)(SUqf(FH!I7v)Z4Mg;&q!$TiS(TWnm!qD|c<Pk=&!W^s*vdAA
z=24^4En*4E*u@(8UdbYMNSi~k8ZE%D^{Ja8;?p=q$fhar*=_lg#JtS)9MAGD;nSf#
zE|bd@&AA%%&Fv_^AxB->s9Q>pT6VLHn;LVA)xv6S)2MigyTRGq;nMrcexUk?%%@jF
zA8F%0DtOFxX)W{z=km_vJ<&b`y311vcrJS{GWGdYq2!?CA@=Y}>8~xpu(k8X#(3*h
z^Uk}#d*}Gzb~56+8FD?0x;uPyy^OhjKDqD0NxrxlzJ`3h1%m~9<3H5#rv{D7&aa@k
za6^1T27k-oq;B>n(^<H}N~e|dSJ$6mzkcP2aMX;?<}q%L2@7SyMK5ikPm4vkXIZwy
Vd@Hl49k7_SS+=!XJeV$C`VaR4g}wj)

diff --git a/Week9/Assignment9/src/GolfScore.java b/Week9/Assignment9/src/GolfScore.java
index a42df0a..8fd8081 100644
--- a/Week9/Assignment9/src/GolfScore.java
+++ b/Week9/Assignment9/src/GolfScore.java
@@ -64,17 +64,17 @@ public class GolfScore {
 	 * @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;
+			String[][] data = CSVUtility.readCSV(csvFilename, true); //Read csv to string data
+			String[] golfers = new String[data.length]; // Make 1D array to store all golfer's name
+			for (int i = 0; i < data.length; i++) //Loop through each row
+				golfers[i] = data[i][0]; // First Column is the golfer's name, put it in golfers array
+			return golfers; //send the data back
 		} catch (FileNotFoundException e) {
 			e.printStackTrace();
 		}
-		return new String[0];
+		return new String[0]; //If all else fail, return an empty string array
 	}
 
 	/**
@@ -106,11 +106,11 @@ public class GolfScore {
 	 */
 	public static String getCourseName(String csvFilename) {
 		try {
-			return CSVUtility.readFile(csvFilename)[0];
+			return CSVUtility.readFile(csvFilename)[0]; //Return the first line of the CSV file
 		} catch (FileNotFoundException e) {
 			e.printStackTrace();
 		}
-		return null;
+		return null; //If all else fail, return null
 	}
 
 	/**
@@ -122,22 +122,22 @@ public class GolfScore {
 	 */
 	public static int[] getCoursePar(String csvFilename, String courseName) {
 		// ENTER CODE HERE
-		String[][] data;
 		try {
-			data = CSVUtility.readCSV(csvFilename, false);
+			String[][] data = CSVUtility.readCSV(csvFilename, false); // Read file and store it in data
+			for (int i = 0; i < data.length; i++) { //loop through 
+				if (courseName.equals(data[i][0])) { //If the course name of the the current row is equal to courseName, read the current line
+					int[] pars = new int[data[i].length - 1]; //Create an array to store current course's par data
+					for (int j = 1; j < data[i].length; j++) //Loop through each par, start from 1 to exclude the course name 
+						pars[j - 1] = Integer.parseInt(data[i][j]); //Put the par no. n at index n-2
+					return pars; //return the par for course, this end also exit the loop 
+				}
+			}
 		} 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];
+		
+		return new int[0]; //If all else fail (File not found, etc) return an empty int array
 	}
 
 	/**
@@ -149,11 +149,11 @@ public class GolfScore {
 	 */
 	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;
+		int hc[] = new int[scores.length]; //create a handicap array of nGolfers elements
+		for (int i = 0; i < scores.length; i++) //Loop through each row
+			for (int j = 0; j < scores[i].length; j++) //Loop through each hole
+				hc[i] += calculateHoleHandicap(par[j], scores[i][j]); //no. golfer = row = i+1; no. hole = column = j+1
+		return hc; //Return the Array
 
 	}
 
@@ -168,9 +168,10 @@ public class GolfScore {
 	 */
 	public static int calculateHoleHandicap(int par, int score) {
 		// ENTER CODE HERE
+		//Use conditional if-else chain to calculate par
 		if (score - par == 1)
 			return 1;
-		if (score - par >= 2)
+		else if (score - par >= 2)
 			return 2;
 		return 0;
 	}
@@ -186,11 +187,11 @@ public class GolfScore {
 		// 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++)
+			for (int j = 0; j < 9; j++) //Sum first 9 holes
 				playerScores[i][0] += golfScoreList[i][j];
-			for (int j = 0; j < 9; j++)
+			for (int j = 0; j < 9; j++) //Sum last 9 holes
 				playerScores[i][1] += golfScoreList[i][j + 9];
-			playerScores[i][2] = playerScores[i][0] + playerScores[i][1];
+			playerScores[i][2] = playerScores[i][0] + playerScores[i][1]; //all hole = index 0+1
 		}
 		return playerScores;
 	}