forked from hummel/PR1-Spreadsheet
UI ausgebessert um verschiedene Funktionen aufzurufen: Funktion
implementiert um neue Dateien anzulegen, Funktion implementiert um Dateien auszulesenmaster
devra
parent
f9983c112e
commit
b7d8ceecc9
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@ -1,71 +1,209 @@
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package de.hs_mannheim.informatik.spreadsheet;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.FileReader;
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import java.io.IOException;
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import java.util.Scanner;
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/**
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* Part of a simplified spreadsheet system for the PR1 programming lab at Hochschule Mannheim.
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*
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* @author Oliver Hummel
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*/
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public class Axel {
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public static void main(String[] args) throws FileNotFoundException {
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Spreadsheet spr;
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public static void main(String[] args) throws IOException {
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Scanner scanner = new Scanner(System.in);
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Spreadsheet spr = new Spreadsheet(10,10);
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String directoryPath = "C:\\Users\\devra\\git\\Axel\\Axel\\resources\\";
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String filePath = "C:\\Users\\devra\\git\\Axel\\Axel\\resources\\example.csv";
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System.out.println();
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System.out.println("\nWilkommen zum coolsten Spreadsheet Programm der Welt!");
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System.out.println("Was möchten sie machen?");
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// spr.put("A1", "13");
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// spr.put("A2", "1");
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// spr.put("A3", "123");
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//
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// spr.put("B1", "=3");
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// spr.put("c1", "=A2-A1+30");
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// spr.put("B9", "=41+A1");
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// spr.put("J5", "=7*6/5");
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// spr.put("J6", "=3/2");
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System.out.println("\n 1. Neues Dokument erstellen");
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System.out.println(" 2. Dokument öffnen");
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System.out.println(" 3. Programm schließen");
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System.out.print("-> ");
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String userInput = scanner.nextLine();
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int test=1;
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System.out.println("Wilkommen zum coolsten Spreadsheet Programm der Welt!");
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System.out.println("Beispiel-Formel: 'B2=15+5' ");
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while(test==1) {
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System.out.println("Geben sie ihre Formel ein: ");
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System.out.print("-> ");
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String userInput = scanner.nextLine();
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if(userInput.matches("[A-Za-z][1-9][0-9]?="
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+ "((((([A-Za-z][1-9][0-9]?)|([0-9]+))(\\*|\\+|\\-|\\/))*"
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+ "(([A-Za-z][1-9][0-9]?)|([0-9]+)))|"
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+ "((SUMME|PRODUKT|MID|STABW|MIN|MAX)\\(([A-Za-z][1-9][0-9]*\\:[A-Za-z][1-9][0-9]*)\\)))"))
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{
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String[] parts = userInput.split("=");
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spr.put(parts[0],"="+ parts[1]);
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switch(userInput) {
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case "1":
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neuesDokument(directoryPath);
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break;
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// System.out.println(parts[0]);
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System.out.println(spr);
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}
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else {
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System.out.println("Formel ist nicht valide! ");
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case "2":
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dokumentAuswaehlen(directoryPath,filePath);
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break;
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}
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// System.out.println("Was möchten sie machen?");
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//
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// System.out.println("1. Dokument öffnen");
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// System.out.println("2. neues Dokument erstellen");
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case "3":
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break;
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}
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spr.saveCsv("C:\\Users\\devra\\git\\Axel\\Axel\\resources\\zahlen.csv");
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// TODO: You might want to put "UI loop" for entering value and formulas here resp. in some UI methods.
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}
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/**
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* A method for creating a new .csv file
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* @param directoryPath The path where the new File is being saved.
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* @return Nothing.
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* @exception IOException If path does not exist.
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*/
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public static void neuesDokument(String directoryPath) throws IOException {
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//TODO: Zeilen und Spalten begrenzen
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Scanner scanner = new Scanner(System.in);
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System.out.println("Wie viele Spalten soll ihr Dokument haben?(1-26)");
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System.out.print("->");
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String spalten=scanner.nextLine();
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System.out.println("Wie viele Zeilen soll ihr Dokument haben?(1-99)");
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System.out.print("->");
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String zeilen=scanner.nextLine();
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String name="";
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while (true) {
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System.out.println("Wie soll ihr Dokument heißen?");
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System.out.print("->");
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name = scanner.nextLine();
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File file = new File(directoryPath, name + ".csv");
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if (file.exists()) {
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System.out.println("\nDie Datei '" + name + ".csv" + "' existiert bereits, wähle einen anderen Namen");
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} else {
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break;
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}
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}
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Spreadsheet spr = new Spreadsheet(Integer.parseInt(zeilen),Integer.parseInt(spalten));
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String filePath=directoryPath+name+".csv";
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spr.saveCsv(filePath);
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System.out.println("Die Datei '"+name+".csv' wurde angelegt");
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Spreadsheet spr1 = new Spreadsheet(Integer.parseInt(zeilen),Integer.parseInt(spalten));
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spr1.readCsv(filePath,",");
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System.out.println(spr1);
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eingabeLoop(spr1,filePath);
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}
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/**
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* A method for selecting a .csv file
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* @param directoryPath The path where a File can be openend from.
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* @return Nothing.
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* @exception IOException if BufferedReader can't access a file.
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*/
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public static void dokumentAuswaehlen(String directoryPath,String filePath) throws IOException {
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File folder = new File(directoryPath);
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Scanner scanner = new Scanner(System.in);
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String userInput="";
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if (folder.exists() && folder.isDirectory()) {
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File[] files = folder.listFiles((dir, name) -> name.toLowerCase().endsWith(".csv"));
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if (files != null) {
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while(true) {
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System.out.println("\nWähle eine Datei aus: ");
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System.out.println("");
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for (int i = 0; i < files.length; i++) {
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System.out.println((i + 1) + ". " + files[i].getName());
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}
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System.out.print("->");
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userInput = scanner.nextLine();
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if(Integer.parseInt(userInput)>files.length||Integer.parseInt(userInput)<1) {
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System.err.println("Datei nicht vorhanden!");
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}
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else {
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break;
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}
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}
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filePath = directoryPath+files[Integer.parseInt(userInput)-1].getName();
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//feststellen wie groß die Datei ist(Zeilen/Spalten)
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BufferedReader reader = new BufferedReader(new FileReader(filePath));
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String line;
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int zeilenAnzahl = 0;
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int spaltenAnzahl = 20;
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while ((line = reader.readLine()) != null) {
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zeilenAnzahl++;
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String[] spalten = line.split(",",-1); //-1 for empty cells
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spaltenAnzahl = spalten.length;
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}
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reader.close();
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//neues objekt mit zeilen/spalten-anzahl anlegen um .readCsv aufzurufen
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Spreadsheet spr1 = new Spreadsheet(zeilenAnzahl,spaltenAnzahl);
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spr1.readCsv(filePath,",");
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System.out.println(spr1);
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eingabeLoop(spr1,filePath);
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} else {
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System.out.println("Es wurde noch keine Datei angelegt.");
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}
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} else {
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System.out.println("Ungültiges Verzeichnis oder Verzeichnis existiert nicht.");
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System.out.println("Geben sie hier das Verzeichnis ein in dem sie Arbeiten möchten");
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System.out.print("-> ");
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directoryPath = scanner.nextLine();
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}
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}
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/**
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* A method for editing a .csv file
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* @param filePath The path of the File that will be edited
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* @param spr1 A Spreadsheet object used to access Spreadsheet-methods
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* @return Nothing.
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* @exception FileNotFoundException if file does not exist.
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*/
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private static void eingabeLoop(Spreadsheet spr1, String filePath) throws FileNotFoundException {
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System.out.println("\n---------------------------------");
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System.out.println("| Beispiel Formel: 'B2=B5*5' |");
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System.out.println("| 'save' um zu Speichern |");
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System.out.println("| 'exit' um Programm zu beenden |");
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System.out.println("---------------------------------");
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int flag = 1;
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while (flag == 1) {
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Scanner scanner = new Scanner(System.in);
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System.out.println("\nGeben sie ihre Formel/Befehl ein: ");
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System.out.print("-> ");
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String userInput = scanner.nextLine();
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if (userInput.matches("[A-Za-z][1-9][0-9]?="
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+ "((((([A-Za-z][1-9][0-9]?)|([0-9]+))(\\*|\\+|\\-|\\/))*"
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+ "(([A-Za-z][1-9][0-9]?)|([0-9]+)))|"
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+ "((SUMME|PRODUKT|MID|STABW|MIN|MAX)\\(([A-Za-z][1-9][0-9]*\\:[A-Za-z][1-9][0-9]*)\\)))")){
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String[] parts = userInput.split("=");
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spr1.put(parts[0], "=" + parts[1]);
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System.out.println(spr1);
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} else if (userInput.toLowerCase().contains("exit")) {
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System.out.println("Programm wurde beendet!");
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flag = 0;
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} else if (userInput.toLowerCase().contains("save")) {
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spr1.saveCsv(filePath);
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File file = new File(filePath);
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String filename = file.getName();
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System.out.println("'"+filename+"' wurde erfolgreich gespeichert!");
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} else {
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System.err.println("Formel ist nicht valide!");
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}
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}
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}
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}
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@ -1,6 +1,8 @@
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package de.hs_mannheim.informatik.spreadsheet;
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import java.io.BufferedReader;
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import java.io.FileNotFoundException;
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import java.io.FileReader;
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.util.ArrayList;
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@ -14,17 +16,21 @@ import java.util.regex.Pattern;
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* @author Oliver Hummel
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*/
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public class Spreadsheet {
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int rows=0;
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int cols=0;
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Cell[][] cells;
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/**
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* Constructor that creates a Spreadsheet of size rows * cols.
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* @param rows number of rows
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* @param cols number of columns
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*/
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public Spreadsheet(int rows, int cols) {
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// TODO limit the maximum size on 99 (1..99) rows and 26 (A..Z) columns
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// TODO limit the maximum size to 99 (1..99) rows and 26 (A..Z) columns
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this.rows=rows;
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this.cols=cols;
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cells = new Cell[rows][cols];
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for (int r = 0; r < rows; r++)
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@ -87,12 +93,20 @@ public class Spreadsheet {
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* A method for reading in data from a CSV file.
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* @param path The file to read.
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* @param separator The char used to split up the input, e.g. a comma or a semicolon.
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* @param starCellName The upper left cell where data from the CSV file should be inserted.
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* @return Nothing.
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* @exception IOException If path does not exist.
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*/
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public void readCsv(String path, char separator, String startCellName) throws FileNotFoundException {
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// TODO: implement this
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public void readCsv(String path, String separator) throws IOException {
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BufferedReader reader = new BufferedReader(new FileReader(path));
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for(int row=0;row<rows;row++) {
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String line = reader.readLine();
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String[] columns = line.split(",");
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for (int col = 0; col < columns.length; col++) {
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put(row, col, columns[col]);
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}
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}
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reader.close();
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}
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/**
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@ -177,7 +191,6 @@ public class Spreadsheet {
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//System.out.println(formula);
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Matcher m = Pattern.compile("([A-Z][0-9]*)|[-\\+\\*/]|[0-9]*").matcher(formula);
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ArrayList<String> zahlen = new ArrayList<>();
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while(m.find()) {
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@ -187,7 +200,6 @@ public class Spreadsheet {
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}
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}
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int ersteZahl = Integer.parseInt(get(zahlen.get(0)));
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int zweiteZahl=0;
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@ -213,8 +225,6 @@ public class Spreadsheet {
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break;
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}
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}
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return ersteZahl;
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}
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@ -224,6 +234,8 @@ public class Spreadsheet {
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/**
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* This method checks if a given string contains one or more digits
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* to make sure that the string consists of only numbers,
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* @param input The input that is getting checked for only numbers
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* @return returns true when the string contains only numbers
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*/
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public boolean containsOnlyNumbers(String input) {
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return input.matches("[0-9]+");
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