From 3f9b7a7091b88e890b51fd598c468071e576d7a9 Mon Sep 17 00:00:00 2001
From: ERANZER <ERANZER@MEINS.fritz.box>
Date: Fri, 5 Jan 2024 20:14:01 +0100
Subject: [PATCH] max value of a cell block

---
 .../informatik/spreadsheet/Spreadsheet.java   | 43 +++++++++++--------
 1 file changed, 25 insertions(+), 18 deletions(-)

diff --git a/Axel/src/de/hs_mannheim/informatik/spreadsheet/Spreadsheet.java b/Axel/src/de/hs_mannheim/informatik/spreadsheet/Spreadsheet.java
index ba99bd8..553edaf 100644
--- a/Axel/src/de/hs_mannheim/informatik/spreadsheet/Spreadsheet.java
+++ b/Axel/src/de/hs_mannheim/informatik/spreadsheet/Spreadsheet.java
@@ -148,9 +148,14 @@ public class Spreadsheet {
 				result = "" + standardDeviation(formula.substring(6, 8), formula.substring(9, 12));
 			else 
 				result = "" + standardDeviation(formula.substring(6, 8), formula.substring(9, 11));
-		else if (formula.startsWith("MIN("))  // e.g. MIN(C13:H13) -> größter Wert
-			result = "TODO"; // TODO
-		else if (formula.startsWith("MAX("))  // e.g. MAX(A1:A10) -> Standardabweichung
+		else if (formula.startsWith("MAX("))
+			if(formula.length()==12) 
+				result = "" + max(formula.substring(4, 7), formula.substring(8, 11));
+			else if(formula.length()==11) 
+				result = "" + max(formula.substring(4, 6), formula.substring(7, 10));
+			else 
+				result = "" + max(formula.substring(4, 6), formula.substring(7, 9));
+		else if (formula.startsWith("MIN("))  // e.g. MAX(A1:A10) -> Standardabweichung
 			result = "TODO"; // TODO
 		else if (!formula.isEmpty()) {
 			try {
@@ -162,20 +167,13 @@ public class Spreadsheet {
 
 		cells[row][col].setValue("" + result);
 	}
-
-	/**
-	 * Method for calculating the sum of a rectangular block of cells, such as from A1 to B3.
-	 * @param startCellName The name of the cell in the upper left corner of the rectangle.
-	 * @param endCellName The name of the cell in the lower right corner of the rectangle.
-	 * @return The sum calculated.
-	 */
+	//calculations for cell blocks
 	private long sum(String startCellName, String endCellName) {
 		long sum=0;
 		for(int i=startCellName.charAt(0)-'A'; i<=endCellName.charAt(0)-'A'; i++) {
 			for(int j=Integer.parseInt(startCellName.substring(1))-1; j<=Integer.parseInt(endCellName.substring(1))-1; j++) {
-				if(cells[j][i].isEmpty()) {
+				if(cells[j][i].isEmpty()) 
 					continue;
-				}
 				sum+=Integer.parseInt(cells[j][i].getValue());
 			}
 		}
@@ -185,9 +183,8 @@ public class Spreadsheet {
 		long product=1;
 		for(int i=startCellName.charAt(0)-'A'; i<=endCellName.charAt(0)-'A'; i++) {
 			for(int j=Integer.parseInt(startCellName.substring(1))-1; j<=Integer.parseInt(endCellName.substring(1))-1; j++) {
-				if(cells[j][i].isEmpty()) {
+				if(cells[j][i].isEmpty()) 
 					return 0;
-				}
 				product=product*Integer.parseInt(cells[j][i].getValue());
 			}
 		}
@@ -198,9 +195,8 @@ public class Spreadsheet {
 		long counter=0;
 		for(int i=startCellName.charAt(0)-'A'; i<=endCellName.charAt(0)-'A'; i++) {
 			for(int j=Integer.parseInt(startCellName.substring(1))-1; j<=Integer.parseInt(endCellName.substring(1))-1; j++) {
-				if(cells[j][i].isEmpty()) {
+				if(cells[j][i].isEmpty()) 
 					continue;
-				}
 				average+=Integer.parseInt(cells[j][i].getValue());
 				counter++;
 			}
@@ -213,15 +209,26 @@ public class Spreadsheet {
 		long value=0;
 		for(int i=startCellName.charAt(0)-'A'; i<=endCellName.charAt(0)-'A'; i++) {
 			for(int j=Integer.parseInt(startCellName.substring(1))-1; j<=Integer.parseInt(endCellName.substring(1))-1; j++) {
-				if(cells[j][i].isEmpty()) {
+				if(cells[j][i].isEmpty()) 
 					continue;
-				}
 				value+=Math.pow(Integer.parseInt(cells[j][i].getValue())-average,2);
 				counter++;
 			}
 		}
 		return (long) Math.sqrt(value/(counter-1));
 	}
+	private int max(String startCellName,String endCellName) {
+		int max=Integer.MIN_VALUE;
+		for(int i=startCellName.charAt(0)-'A'; i<=endCellName.charAt(0)-'A'; i++) {
+			for(int j=Integer.parseInt(startCellName.substring(1))-1; j<=Integer.parseInt(endCellName.substring(1))-1; j++) {
+				if(cells[j][i].isEmpty()) 
+					continue;
+				else if(max<Integer.parseInt(cells[j][i].getValue()))
+					max=Integer.parseInt(cells[j][i].getValue());
+			}
+		}
+		return max;
+	}
 
 	/**
 	 * This method calculates the result of a "normal" algebraic expression. It only needs to support