Dateien nach "Axel/src/de/hs_mannheim/informatik/spreadsheet" hochladen

test

Axel/resources/zahlen.csv

@@ -1,4 +1,10 @@
-1,2
+,24,,,,
-3,4
+,28,,,,
-5,6
+123,24,,,,
-7,8
+,24,,,,
+,5,,,,
+,5,,,,
+,200,,,,
+,200,,,,
+,=41+A2+10-2/3,,,,
+,,,,,

Axel/src/de/hs_mannheim/informatik/spreadsheet/Axel.java

@@ -1,6 +1,10 @@
 package de.hs_mannheim.informatik.spreadsheet;
 
+import java.io.File;
 import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.PrintWriter;
+import java.util.Scanner;
 
 /**
  * Part of a simplified spreadsheet system for the PR1 programming lab at Hochschule Mannheim.
@@ -10,20 +14,105 @@ import java.io.FileNotFoundException;
 public class Axel {
 
 	public static void main(String[] args) throws FileNotFoundException {
-		Spreadsheet spr = new Spreadsheet(10,10);
+		Spreadsheet spr = new Spreadsheet(10,6);
+		boolean UiLoop = true;
+		@SuppressWarnings("resource")
+		Scanner input = new Scanner(System.in);
+		String filePath = "Axel/resources/";
+		System.out.println("Wilkommen zum coolsten Spreadsheet Programm der Welt!(Cooler als Devran Cakici´s 3009694)");
 		
-		spr.put("A3", "123");
+		System.out.println("Was möchten sie machen?");
-		spr.put("A2", "1");
 		
-		spr.put("B9", "=41+A2");
+		System.out.println("\n 1. Dokument öffnen");
-		spr.put("J5", "=7*6");
+		System.out.println(" 2. Neues Dokument erstellen");
-		spr.put("J6", "=3/2");
+		System.out.println(" 3. Programm schließen");
+		System.out.print("-> ");
+		String docSlct = input.nextLine();
 		
+		switch(docSlct) {
+			case "1":
+		        File folder = new File(filePath);
+		        
+		        if (folder.exists() && folder.isDirectory()) {
+		            File[] files = folder.listFiles((dir, name) -> name.toLowerCase().endsWith(".csv"));
+		            
+		            if (files != null) {
+		                System.out.println("\nWähle eine Datei aus: ");
+		                System.out.println("");
+		                for (int i = 0; i < files.length; i++) {
+		                    System.out.println(i+1 + ": " + files[i].getName());
+		                }
+		                System.out.println();
+		                spr.readCsv(filePath+=files[Integer.parseInt(input.nextLine())-1].getName(),"");
+		            } else {
+		                System.out.println("Es wurden noch keine Datei angelegt.");
+		            }
+		        }else {
+		            System.out.println("Ungültiges Verzeichnis oder Verzeichnis existiert nicht.");
+		            System.out.println("Geben sie hier ihr verzeichnis ein in dem sie Arbeiten möchten: ");
+		            filePath = input.nextLine();
+		            
+		        }
+		        
+				break;
+			case "2":
+				System.out.println("Reihen: ");
+				int rows = Integer.parseInt(input.nextLine());
+				System.out.println("Spalten: ");
+				int cols = Integer.parseInt(input.nextLine());
+				spr.changeSize(rows, cols);
+				break;
+			case "3":
+				UiLoop = false;
+				break;
+		}
+		while(UiLoop){
+			String command = "";
+			String form = "";
+			String cell= "";
+			boolean cellTRUE = true;
+			
+			System.out.println("Schreibe 'stop' zum anhalten.");
 			System.out.println(spr);
-		
+			System.out.println("Befehl (z.B. D4_=7*6): ");
-		spr.saveCsv("/tmp/test.csv");
+			command = input.nextLine();
-		
+			if(command.matches("[A-Za-z][1-9][0-9]?_="
-		// TODO: You might want to put "UI loop" for entering value and formulas here resp. in some UI methods.
+							+ "((((([A-Za-z][1-9][0-9]?)|([0-9]+))(\\*|\\+|\\-|\\/))*"
+					        + "(([A-Za-z][1-9][0-9]?)|([0-9]+)))|"
+					        + "((SUMME|PRODUKT|MID|STABW|MIN|MAX)\\(([A-Za-z][1-9][0-9]*\\:[A-Za-z][1-9][0-9]*)\\)))")) {
+				for(int i = 0; i<command.length();i++) {
+					if(command.charAt(i)=='_') {
+						cellTRUE = false;
+						continue;
+					}
+					if(cellTRUE) {
+						cell+=command.charAt(i);
+					}else {
+						form+=command.charAt(i);
+					}
+				}
+				if((spr.getRow(cell)+1)<=spr.cells.length&&(spr.getCol(cell)+1)<=spr.cells[0].length) {
+					spr.put(cell, form);
+                }
+                else {
+                    System.err.println("Zelle '"+ cell+ "' existiert nicht!");
+                }
+            }else if(command.matches("stop")){
+            	break;
+            }else if(command.startsWith("save")){
+            	String csvName=command.substring(5)+".csv";
+            	String savePath = "Axel/resources/";
+            	try (PrintWriter writer = new PrintWriter(new FileOutputStream(savePath+csvName))) {
+        		    spr.saveCsv(writer);
+        		    System.out.println("CSV file saved successfully.");
+        		} catch (FileNotFoundException e) {
+        		    System.err.println("Error: " + e.getMessage());
+        		}
+            	break;
+            }else {
+            	System.out.println("Die Eingabe war nicht korrekt. Die Tabelle bleibt auf folgendem stand:");
+            }
+		}
 	}
 
 }

Axel/src/de/hs_mannheim/informatik/spreadsheet/Cell.java

@@ -1,5 +1,5 @@
 package de.hs_mannheim.informatik.spreadsheet;
-
+//test
 /**
  * Part of a simplified spreadsheet system for the PR1 programming lab at Hochschule Mannheim.
  * A cell needs to be able to hold a formula and a value 

Axel/src/de/hs_mannheim/informatik/spreadsheet/Spreadsheet.java

@@ -1,11 +1,14 @@
 package de.hs_mannheim.informatik.spreadsheet;
 
+import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
-
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
 /**
  * A simplified spreadsheet class for the PR1 programming lab at Hochschule Mannheim.
  * One aspect worth mentioning is that it only supports long numbers, not doubles.
@@ -14,36 +17,61 @@ import java.util.regex.Pattern;
  */
 public class Spreadsheet {
 	Cell[][] cells;
-
+	/*
-	/**
 	 * Constructor that creates a Spreadsheet of size rows * cols.
 	 * @param rows number of rows
 	 * @param cols number of columns
 	 */
 	public Spreadsheet(int rows, int cols) {
 
-		// TODO limit the maximum size on 99 (1..99) rows and 26 (A..Z) columns
+		int rowWithMax99= Math.min(rows, 99);
+		int colWithMax26= Math.min(cols, 26);
 
-		cells = new Cell[rows][cols];
+		cells = new Cell[rowWithMax99][colWithMax26];
 
-		for (int r = 0; r < rows; r++)
+		for (int r = 0; r < rowWithMax99; r++)
-			for (int c = 0; c < cols; c++)
+			for (int c = 0; c < colWithMax26; c++)
+				cells[r][c] = new Cell();
+	}
+	/**
+	 * Sets a Spreadsheet of size rows * cols.
+	 * @param rows number of rows
+	 * @param cols number of columns
+	 */
+	public void changeSize(int rows, int cols) {
+		cells = new Cell[0][0];
+		
+		int rowWithMax99= Math.min(rows, 99);
+		int colWithMax26= Math.min(cols, 26);
+
+		cells = new Cell[rowWithMax99][colWithMax26];
+
+		for (int r = 0; r < rowWithMax99; r++)
+			for (int c = 0; c < colWithMax26; c++)
 				cells[r][c] = new Cell();
 	}
 
 	// -----
+	/*
+	 * @param str A String with multiple numbers.
+	 * @return true if there are ONLY numbers in this sting.
+	 */
+	private boolean isNumber(String str) {
+        return str.matches("[0-9]+");
+    }
+	private boolean isCar(String str) {//Brum
+        return str.matches("[-\\+\\*/]+");
+    }
 	// retrieve or change values of cells
 	
 	private String get(int row, int col) {
 		return cells[row][col].getValue();
 	}
-
 	public String get(String cellName) {
 		cellName = cellName.toUpperCase();
 		return get(getRow(cellName), getCol(cellName));
 	}
-
+	void put(int row, int col, String value) {
-	private void put(int row, int col, String value) {
 		if (!value.startsWith("="))
 			cells[row][col].setValue(value);
 		else {
@@ -51,33 +79,57 @@ public class Spreadsheet {
 			evaluateCell(row, col);
 		}
 	}
-
 	public void put(String cellName, String value) {
 		cellName = cellName.toUpperCase();
 		put(getRow(cellName), getCol(cellName), value);
 	}
-
+	public int getCol(String cellName) {
-	private int getCol(String cellName) {
 		return cellName.charAt(0) - 'A';
 	}
-
+	public int getRow(String cellName) {
-	private int getRow(String cellName) {
+		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';
 		}
-
+	}
 	// -----
 	// business logic
 
 	/** 
 	 * A method for reading in data from a CSV file.
 	 * @param path The file to read.
-	 * @param separator The char used to split up the input, e.g. a comma or a semicolon.
+	 * @param startCellName The upper left cell where data from the CSV file should be inserted.
-	 * @param starCellName The upper left cell where data from the CSV file should be inserted.
 	 * @return Nothing.
 	 * @exception IOException If path does not exist.
 	 */
-	public void readCsv(String path, char separator, String startCellName) throws FileNotFoundException {
+	public void readCsv(String path, String startCellName) throws FileNotFoundException {
-		// TODO: implement this
+		Scanner csvIn = new Scanner(new File(path));
+		int index= 0;
+		
+		while(csvIn.hasNextLine()){
+			String line =csvIn.nextLine();
+			String all="";
+			int filled=0;
+			for(int i = 0;i<line.length();i++) {
+				if(line.charAt(i)==',') {
+					if(!all.isBlank()) {
+						put(index,i-filled,all);
+						all="";
+					}
+				}else {
+					filled++;
+					all+=line.charAt(i);
+				}
+				
+			}
+			index++;
+		}
+		
+		csvIn.close();
 	}
 
 	/**
@@ -86,8 +138,7 @@ public class Spreadsheet {
 	 * @return Nothing.
 	 * @exception IOException If path does not exist.
 	 */
-	public void saveCsv(String path) throws FileNotFoundException {
+	public void saveCsv(PrintWriter out) throws FileNotFoundException {
-		PrintWriter out = new PrintWriter(path);
 
 		for (Cell[] row : cells) {
 			for (Cell cell : row) {
@@ -113,20 +164,32 @@ public class Spreadsheet {
 	private void evaluateCell(int row, int col) {
 		String formula = cells[row][col].getFormula();
 		String result = "";
-
+		int offset = 0;
-		if (formula.startsWith("SUMME("))  // e.g. SUMME(A3:A8)
+		int offsetEnd = 0;
-			result = "" + sum(formula.substring(6, 8), formula.substring(9, 11));  // TODO adapt to cells with two digits
+		int diff=0;
-		else if (formula.startsWith("PRODUKT("))  // e.g. PRODUKT(A3:B9)
+		for(int i = 0; i<formula.length();i++) {
-			result = "TODO"; // TODO
+			if(formula.charAt(i)=='(') {
-		else if (formula.startsWith("MITTELWERT("))  // e.g. MITTELWERT(A3:A5)
+				offset=i+1;
-			result = "TODO"; // TODO
+			}else if(formula.charAt(i)==')') {
-		else if (formula.startsWith("STABW("))  // e.g. STABW(C6:D8) -> Standardabweichung
+				offsetEnd=i;
-			result = "TODO"; // TODO
+			}
-		else if (formula.startsWith("MIN("))  // e.g. MIN(C13:H13) -> größter Wert
+			else if(formula.charAt(i)==':') {
-			result = "TODO"; // TODO
+				diff=i;
-		else if (formula.startsWith("MAX("))  // e.g. MAX(A1:A10) -> Standardabweichung
+			}
-			result = "TODO"; // TODO
+		}
-		else if (!formula.isEmpty()) {
+		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));
+		}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 += stabw(formula.substring(offset, diff), formula.substring(diff+1, offsetEnd));
+		}else if (formula.startsWith("MIN("))  {// e.g. MIN(C13:H13) -> kleinster Wert
+			result += min(formula.substring(offset, diff), formula.substring(diff+1, offsetEnd));
+		}else if (formula.startsWith("MAX(")) {  // e.g. MAX(A1:A10) -> größter Wert
+			result += max(formula.substring(offset, diff), formula.substring(diff+1, offsetEnd));
+		}else if (!formula.isEmpty()) {
 			try {
 				result = "" + calculate(formula);
 			} catch(ArithmeticException ae) {
@@ -143,12 +206,145 @@ public class Spreadsheet {
 	 * @param endCellName The name of the cell in the lower right corner of the rectangle.
 	 * @return The sum calculated.
 	 */
-	private long sum(String startCellName, String endCellName) {
+	public long sum(String startCellName, String endCellName) {
-		// TODO implement
+		long res = 0;
-
+		for(int j = getRow(startCellName); j<= (getRow(endCellName));j++){
+			for(int i = getCol(startCellName); i<= (getCol(endCellName));i++) {
+				if(!cells[j][i].getValue().isBlank()) {
+					res += Long.parseLong(cells[j][i].getValue());
+				}
+			}
+		}
+		return res;
+	}
+	/**
+	 * Method for calculating the product 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 product calculated.
+	 */
+	public long prod(String startCellName, String endCellName) {
+		long res = 1;
+		boolean anyNumbers= false;
+		for(int j = getRow(startCellName); j<= (getRow(endCellName));j++){
+			for(int i = getCol(startCellName); i<= (getCol(endCellName));i++) {
+				if(!cells[j][i].getValue().isBlank()) {
+					res*= Long.parseLong(cells[j][i].getValue());
+					anyNumbers = true;
+				}
+			}
+		}
+		if(anyNumbers)
+			return res;
+		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.
+	 */
+	public long mid(String startCellName, String endCellName) {
+		long res = 0;
+		int Numbers= 0;
+		for(int j = getRow(startCellName); j<= (getRow(endCellName));j++){
+			for(int i = getCol(startCellName); i<= (getCol(endCellName));i++) {
+				if(!cells[j][i].getValue().isBlank()) {
+					res+= Long.parseLong(cells[j][i].getValue());
+					Numbers++;
+				}
+			}
+		}
+		res/=Numbers;
+		return res;
+	}
+	/**
+	 * Method for calculating the Standard deviation 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 Standard deviation calculated.
+	 */
+	public long stabw(String startCellName, String endCellName) {
+		long res=0;
+		long midSum=0;
+		//mid(startCellName,endCellName)
+		//mid ist nicht verwendbar weil wir die anzahl der Nummern sowieso brauchen
+		int numbers= 0;
+		for(int j = getRow(startCellName); j<= (getRow(endCellName));j++){
+			for(int i = getCol(startCellName); i<= (getCol(endCellName));i++) {
+				if(!cells[j][i].getValue().isBlank()) {
+					midSum+= Long.parseLong(cells[j][i].getValue());
+					numbers++;
+				}
+			}
+		}
+		double midVal = (double) midSum / numbers;
 		
+		double sum = 0.0;
+	    for (int j = getRow(startCellName); j <= getRow(endCellName); j++) {
+	        for (int i = getCol(startCellName); i <= getCol(endCellName); i++) {
+	            if (!cells[j][i].getValue().isBlank()) {
+	                long value = Long.parseLong(cells[j][i].getValue());
+	                sum += Math.pow(value - midVal, 2);
+	            }
+	        }
+	    }
+	    double stabw = Math.sqrt(sum / numbers);
+		return (long) stabw;
+	}
+	/**
+	 * Method for calculating the minimum 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 minimum value calculated.
+	 */
+	public long min(String startCellName, String endCellName) {
+		long res = 0;
+		List<Long> args = new ArrayList<>();
+		for(int j = getRow(startCellName); j<= (getRow(endCellName));j++){
+			for(int i = getCol(startCellName); i<= (getCol(endCellName));i++) {
+				if(!cells[j][i].getValue().isBlank()) {
+					args.add(Long.parseLong(cells[j][i].getValue()));
+				}
+			}
+		}
+		if(args.size()>0) {
+			res=args.get(0);
+		}
+		for(int i = 0; i<args.size();i++) {
+			if(res>args.get(i)) {
+				res=args.get(i);
+			}
+		}
+		return res;
+	}
+	/**
+	 * Method for calculating the maximum 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 maximum value calculated.
+	 */
+	public long max(String startCellName, String endCellName) {
+		long res = 0;
+		List<Long> args = new ArrayList<>();
+		for(int j = getRow(startCellName); j<= (getRow(endCellName));j++){
+			for(int i = getCol(startCellName); i<= (getCol(endCellName));i++) {
+				if(!cells[j][i].getValue().isBlank()) {
+					args.add(Long.parseLong(cells[j][i].getValue()));
+				}
+			}
+		}
+		if(args.size()>0) {
+			res=args.get(0);
+		}
+		for(int i = 0; i<args.size();i++) {
+			if(res<args.get(i)) {
+				res=args.get(i);
+			}
+		}
+		return res;
+	}
 	/**
 	 * This method calculates the result of a "normal" algebraic expression. It only needs to support
 	 * expressions like =B4 or =2+A3-B2, i.e. only with int numbers and other cells and with plus,
@@ -161,19 +357,51 @@ public class Spreadsheet {
 	private long calculate(String formula) throws ArithmeticException {
 		Matcher m = Pattern.compile("([A-Z][0-9]*)|[-\\+\\*/]|[0-9]*").matcher(formula);
 
-		long res = 0;
+		List<String> args = new ArrayList<>();
 		
-		// TODO implement
+		while (m.find()) {
-
+			if(!m.group().isEmpty()) {
-		// uncomment the following to see an example how the elements of a formula can be accessed
+				if(isNumber(m.group())||isCar(m.group())) {
-		while (m.find()) {        // m.find() must always be used before m.group()
+					args.add(m.group());
-			String s = m.group();
+				}else {
-			if (!s.isEmpty()) {
+					if(cells[getRow(m.group())][getCol(m.group())].getValue().isEmpty()) 
-				System.out.println(s);
+						args.add("0");
+					else
+						args.add(m.group());
+				}
 			}
 		}
 		
-		return res;
+		for(int i = 2; i<args.size();) {
+			String val = "";
+			switch(args.get(i-1)) {
+				case "+":
+					val =""+ (Integer.parseInt(args.get(i-2))+Integer.parseInt(args.get(i)));
+					args.set(i,val);
+					args.remove(i-1);
+					args.remove(i-2);
+					break;
+				case "-":
+					val =""+ (Integer.parseInt(args.get(i-2))-Integer.parseInt(args.get(i)));
+					args.set(i,val);
+					args.remove(i-1);
+					args.remove(i-2);
+					break;
+				case "*" :
+					val =""+ (Integer.parseInt(args.get(i-2))*Integer.parseInt(args.get(i)));
+					args.set(i,val);
+					args.remove(i-1);
+					args.remove(i-2);
+					break;
+				case "/":
+					val =""+ (Integer.parseInt(args.get(i-2))/Integer.parseInt(args.get(i)));
+					args.set(i,val);
+					args.remove(i-1);
+					args.remove(i-2);
+					break;
+			}
+		}
+		return Long.parseLong(args.get(0));
 	}
 
 	// -----

Axel/src/de/hs_mannheim/informatik/spreadsheet/nr5.java

@@ -0,0 +1,139 @@
+package de.hs_mannheim.informatik.spreadsheet;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import org.junit.jupiter.api.Test;
+
+public class nr5 {
+	private Spreadsheet spr;
+	private String[] spreadsheetData = {
+		    "40", "12", "87", "54", "32", "66", "78", "21", "90", "89",
+		    "25", "74", "88", "91", "33", "98", "67", "45", "19", "11",
+		    "65", "69", "50", "84", "74", "61", "53", "99", "29", "46",
+		    "16", "89", "79", "62", "45", "31", "73", "23", "13", "81",
+		    "60", "88", "45", "51", "36", "16", "46", "3", "18", "85",
+		    "4", "27", "87", "91", "29", "84", "95", "65", "71", "94",
+		    "84", "49", "3", "79", "67", "89", "10", "74", "77", "51",
+		    "48", "38", "41", "59", "2", "15", "62", "18", "40", "29",
+		    "93", "13", "5", "58", "30", "64", "58", "6", "67", "96",
+		    "67", "77", "25", "81", "87", "27", "53", "31", "85", "98"};
+			
+	public void setup() {
+		spr = new Spreadsheet(10,10);
+		
+		for(int i=0;i<10;i++) {
+			for(int j=0;j<10;j++) {
+				spr.put(i,j, spreadsheetData[i+j*10]);
+			}
+		}
+	}
+	
+	@Test
+	public void testSum() {
+	    setup();
+	    System.out.println(spr);
+	    long expectedSum = 40 + 12 + 87 + 54 + 32 + 66 + 78 + 21 + 90 + 89 +
+	                      25 + 74 + 88 + 91 + 33 + 98 + 67 + 45 + 19 + 11 +
+	                      65 + 69 + 50 + 84 + 74 + 61 + 53 + 99 + 29 + 46 +
+	                      16 + 89 + 79 + 62 + 45 + 31 + 73 + 23 + 13 + 81 +
+	                      60 + 88 + 45 + 51 + 36 + 16 + 46 + 3 + 18 + 85 +
+	                      4 + 27 + 87 + 91 + 29 + 84 + 95 + 65 + 71 + 94 +
+	                      84 + 49 + 3 + 79 + 67 + 89 + 10 + 74 + 77 + 51 +
+	                      48 + 38 + 41 + 59 + 2 + 15 + 62 + 18 + 40 + 29 +
+	                      93 + 13 + 5 + 58 + 30 + 64 + 58 + 6 + 67 + 96 +
+	                      67 + 77 + 25 + 81 + 87 + 27 + 53 + 31 + 85 + 98;
+
+	    assertEquals(expectedSum, spr.sum("A1", "J10"));
+	}
+
+	@Test
+	public void testProd() {
+	    setup();
+	    long expectedProduct = 1;
+	    for (String value : spreadsheetData) {
+	        expectedProduct *= Integer.parseInt(value);
+	    }
+	    assertEquals(expectedProduct, spr.prod("A1", "J10"));
+	}
+	@Test
+	public void testMid() {
+	    setup();
+	    int mid = 0;
+	    for (String value : spreadsheetData) {
+	        mid += Integer.parseInt(value);
+	    }
+	    mid /= 100;
+
+	    assertEquals((long) mid, spr.mid("A1", "J10"));
+	}
+	@Test
+	public void testStabw() {
+	    setup();
+	    double Stabw = stabw();
+	    assertEquals((long) Stabw, spr.stabw("A1", "J10"));
+	}
+	@Test
+	public void testMin() {
+	    setup();
+	    long Min = calMin();
+	    assertEquals(Min, spr.min("A1", "J10"));
+	}
+	@Test
+	public void testMax() {
+	    setup();
+	    long Max = calMax();
+	    assertEquals(Max, spr.max("A1", "J10"));
+	}
+	
+	
+	
+	
+	
+	private double stabw() {
+	    double midVal = cMV();
+	    double sum = 0.0;
+	    int numbers = 0;
+	    for (String value : spreadsheetData) {
+	        if (!value.isBlank()) {
+	            long longValue = Long.parseLong(value);
+	            sum += Math.pow(longValue - midVal, 2);
+	            numbers++;
+	        }
+	    }
+	    return Math.sqrt(sum / numbers);
+	}
+	private double cMV() {
+	    double midSum = 0.0;
+	    int numbers = 0;
+	    for (String value : spreadsheetData) {
+	        if (!value.isBlank()) {
+	            midSum += Long.parseLong(value);
+	            numbers++;
+	        }
+	    }
+	    return midSum / numbers;
+	}
+	private long calMin() {
+	    long min = Long.MAX_VALUE;
+	    for (String value : spreadsheetData) {
+	        if (!value.isBlank()) {
+	            long longValue = Long.parseLong(value);
+	            min = Math.min(min, longValue);
+	        }
+	    }
+	    return min;
+	}
+	private long calMax() {
+	    long max = Long.MIN_VALUE;
+
+	    for (String value : spreadsheetData) {
+	        if (!value.isBlank()) {
+	            long longValue = Long.parseLong(value);
+	            max = Math.max(max, longValue);
+	        }
+	    }
+
+	    return max;
+	}
+}
+