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PR1-Spreadsheet
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product of a cell block

ERANZER 2024-01-05 12:55:34 +01:00
parent 859be3633e
commit e8114209f2
2 changed files with 34 additions and 4 deletions
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8
Axel/src/de/hs_mannheim/informatik/spreadsheet/Axel.java
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@ -11,10 +11,14 @@ import java.util.Scanner;
public class Axel {
public static void main(String[] args) throws FileNotFoundException {
Spreadsheet spr = new Spreadsheet(20,10);
String cell, in;
int rows, cols;
Scanner kb = new Scanner(System.in);
System.out.print("Rows:");
rows=Integer.parseInt(kb.nextLine());
System.out.print("Cols:");
cols=Integer.parseInt(kb.nextLine());
Spreadsheet spr=new Spreadsheet(rows,cols);
//spr.put("A3", "3");
//spr.put("A2", "1");

30
Axel/src/de/hs_mannheim/informatik/spreadsheet/Spreadsheet.java
View File

@ -130,9 +130,13 @@ public class Spreadsheet {
result = "" + sum(formula.substring(6, 8), formula.substring(9, 12));
else
result = "" + sum(formula.substring(6, 8), formula.substring(9, 11));
else if (formula.startsWith("PRODUKT(")) // e.g. PRODUKT(A3:B9)
result = "TODO"; // TODO
if(formula.length()==16)
result = "" + product(formula.substring(8, 11), formula.substring(12, 15));
else if(formula.length()==15)
result = "" + product(formula.substring(8, 10), formula.substring(11, 14));
else
result = "" + product(formula.substring(8, 10), formula.substring(11, 13));
else if (formula.startsWith("MITTELWERT(")) // e.g. MITTELWERT(A3:A5)
result = "TODO"; // TODO
else if (formula.startsWith("STABW(")) // e.g. STABW(C6:D8) -> Standardabweichung
@ -180,6 +184,28 @@ public class Spreadsheet {
}
return sum;
}
private long product(String startCellName, String endCellName) {
int product=1;
int startCellRow;
int endCellRow;
if(startCellName.length()==3)
startCellRow=Integer.parseInt((startCellName.charAt(1)+"")+(startCellName.charAt(2)+""))-1;
else
startCellRow=startCellName.charAt(1)-'1';
if(endCellName.length()==3)
endCellRow=Integer.parseInt((endCellName.charAt(1)+"")+(endCellName.charAt(2)+""))-1;
else
endCellRow=endCellName.charAt(1)-'1';
for(int i=startCellName.charAt(0)-'A'; i<=endCellName.charAt(0)-'A'; i++) {
for(int j=startCellRow; j<=endCellRow; j++) {
if(cells[j][i].isEmpty()) {
return 0;
}
product=product*Integer.parseInt(cells[j][i].getValue());
}
}
return product;
}
/**
* This method calculates the result of a "normal" algebraic expression. It only needs to support