init

.gitignore

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+.idea/
+
+target/

ZJJXProjekt1.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4" />

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ZJJX-Projekt1</groupId>
+    <artifactId>ZJJX-Projekt1</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>13</source>
+                    <target>13</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>

src/main/java/Main.java

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+import java.io.File;
+import java.io.IOException;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+public class Main {
+    public static void main(String[] args) {
+        DateTimeFormatter dtf = DateTimeFormatter.ofPattern("dd-MM-yyyy HH-mm-ss");
+        LocalDateTime now = LocalDateTime.now();
+        String fileName = now.format(dtf) + " lista.txt";
+        File file = new File(fileName);
+        try {
+            file.createNewFile();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        Read.read(file);
+    }
+}

src/main/java/Pesel.java

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+public class Pesel {
+    protected static String pesel;
+
+    public static boolean checkPesel(String pesel) {
+        Pesel.pesel = pesel;
+        return (len() && checksum() && dayOfBirth());
+    }
+
+    public static boolean checksum() {
+        int[] multipliers = {1, 3, 7, 9, 1, 3, 7, 9, 1, 3, 1};
+        int sum = 0;
+
+        for(int i = 0; i < 11; i++) {
+            sum += multipliers[i] * Integer.valueOf(pesel.charAt(i));
+        }
+
+        if(sum % 10 == 0) {
+            return true;
+        }
+        else {
+            return false;
+        }
+    }
+
+    public static boolean dayOfBirth() {
+        String dayOfBirthStr = pesel.substring(4,6);
+        int dayOfBirth = Integer.valueOf(dayOfBirthStr);
+        if(dayOfBirth > 0 && dayOfBirth < 32) {
+            return true;
+        }
+        else {
+            return false;
+        }
+    }
+
+    public static boolean len() {
+        if(pesel.length() == 11) {
+            return true;
+        }
+        else {
+            return false;
+        }
+    }
+}

src/main/java/Read.java

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+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+
+public class Read {
+    public static void read(File file) {
+        String continuteInput;
+        Scanner read = new Scanner(System.in);
+
+        while(true) {
+            List<String> personalInfo = new ArrayList<String>();
+            System.out.print("Podaj miasto: ");
+            String city = read.nextLine();
+            personalInfo.add(city);
+
+            System.out.print("Podaj imię, nazwisko, PESEL (oddzielone spacjami): ");
+            String data = read.nextLine();
+            for (String d : data.split(" ")) {
+                personalInfo.add(d);
+            }
+
+            if(!Pesel.checkPesel(personalInfo.get(3))) {
+                System.out.println("Wprowadzony PESEL jest niepoprawny.");
+            }
+            else {
+                boolean saved = false;
+                // sprawdzenie czy już siedzi w pliku
+                if(!saved) {
+                    Write.write(personalInfo, file);
+                    System.out.println("Osoba dodana do listy.");
+                }
+            }
+            System.out.print("Chcesz kontynuować? [t/n] ");
+            continuteInput = read.nextLine();
+            if(continuteInput.equals("n")) {
+                break;
+            }
+        }
+        read.close();
+    }
+}

src/main/java/Write.java

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+import java.io.*;
+import java.util.List;
+
+public class Write {
+    public static void checkIfPeselExists(File file, List data) {
+        if(file.exists()) {
+            try (BufferedReader bufferedReader = new BufferedReader(new FileReader(file))) {
+                String line;
+                while((line = bufferedReader.readLine()) != null) {
+
+                }
+            } catch (FileNotFoundException e) {
+                e.printStackTrace();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        } else {
+            System.out.println("Problem z odczytaniem danych z pliku.");
+        }
+    }
+
+    public static void write(List data, File file) {
+        if(file.exists()) {
+            try (BufferedWriter fileWriter = new BufferedWriter(new FileWriter(file, true))){
+                fileWriter.write(data.get(0) + " " + data.get(1)  + " " + data.get(2) + " " + data.get(3) + "\n");
+            } catch (IOException e) {
+                e.printStackTrace();
+                return;
+            }
+            System.out.println("Zapis danych do pliku zakończył się powodzeniem.");
+        } else {
+            System.out.println("Problem z zapisem do pliku.");
+        }
+    }
+}