From baa6d8a0924f0d20a3c66baff4fcc21820dce667 Mon Sep 17 00:00:00 2001
From: Jan <Dr.Janson@DESKTOP-AD348NI.fritz.box>
Date: Sat, 6 Jan 2024 22:59:39 +0100
Subject: [PATCH] Mittelwert done (Codewort MID)

---
 .../informatik/spreadsheet/Spreadsheet.java   | 32 +++++++++++++++----
 1 file changed, 26 insertions(+), 6 deletions(-)

diff --git a/Axel/src/de/hs_mannheim/informatik/spreadsheet/Spreadsheet.java b/Axel/src/de/hs_mannheim/informatik/spreadsheet/Spreadsheet.java
index 2649af0..1dc5535 100644
--- a/Axel/src/de/hs_mannheim/informatik/spreadsheet/Spreadsheet.java
+++ b/Axel/src/de/hs_mannheim/informatik/spreadsheet/Spreadsheet.java
@@ -70,13 +70,13 @@ public class Spreadsheet {
 		return cellName.charAt(0) - 'A';
 	}
 	private int getRow(String cellName) {
-		if (cellName.length()==2) {
-			return cellName.charAt(1) - '1';
-		}else {
+		if (cellName.length()==3) {
 			int Row = 0;
 			Row +=((cellName.charAt(1)-'0')*10);
 			Row +=(cellName.charAt(2)-'0');
 			return Row-1;
+		}else {
+			return cellName.charAt(1) - '1';
 		}
 	}
 	// -----
@@ -143,9 +143,9 @@ public class Spreadsheet {
 		if (formula.startsWith("SUMME(")) {  // e.g. SUMME(A3:A8)
 			result += sum(formula.substring(offset, diff), formula.substring(diff+1,offsetEnd)); 
 		}else if (formula.startsWith("PRODUKT(")) {  // e.g. PRODUKT(A3:B9)
-			result += prod(formula.substring(offset, diff), formula.substring(diff+1, offsetEnd));; // TODO
-		}else if (formula.startsWith("MITTELWERT(")) {  // e.g. MITTELWERT(A3:A5)
-			result = "TODO"; // TODO
+			result += prod(formula.substring(offset, diff), formula.substring(diff+1, offsetEnd));
+		}else if (formula.startsWith("MID(")) {  // e.g. MITTELWERT(A3:A5)
+			result += mid(formula.substring(offset, diff), formula.substring(diff+1, offsetEnd));
 		}else if (formula.startsWith("STABW(")) { // e.g. STABW(C6:D8) -> Standardabweichung
 			result = "TODO"; // TODO
 		}else if (formula.startsWith("MIN("))  {// e.g. MIN(C13:H13) -> größter Wert
@@ -202,6 +202,26 @@ public class Spreadsheet {
 		else
 			return 0;
 	}
+	/**
+	 * Method for calculating the Mid Value 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 Mid Value calculated.
+	 */
+	private long mid(String startCellName, String endCellName) {
+		long res = 0;
+		int Numbers= 0;
+		for(int j = getRow(startCellName); j< (getRow(endCellName)+1);j++){
+			for(int i = getCol(startCellName); i< (getCol(endCellName)+1);i++) {
+				if(!cells[j][i].getValue().isBlank()) {
+					res+= Long.parseLong(cells[j][i].getValue());
+					Numbers++;
+				}
+			}
+		}
+		res/=Numbers;
+		return res;
+	}
 
 	/**
 	 * This method calculates the result of a "normal" algebraic expression. It only needs to support