New feature

java-data-handling-template.iml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8">
+    <output url="file://$MODULE_DIR$/target/classes" />
+    <output-test url="file://$MODULE_DIR$/target/test-classes" />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <excludeFolder url="file://$MODULE_DIR$/target" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.junit.jupiter:junit-jupiter:5.5.2" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.junit.jupiter:junit-jupiter-api:5.5.2" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.apiguardian:apiguardian-api:1.1.0" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.opentest4j:opentest4j:1.2.0" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.junit.platform:junit-platform-commons:1.5.2" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.junit.jupiter:junit-jupiter-params:5.5.2" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.junit.jupiter:junit-jupiter-engine:5.5.2" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.junit.platform:junit-platform-engine:1.5.2" level="project" />
+  </component>
+</module>

src/main/java/com/epam/izh/rd/online/Main.java

@@ -1,4 +1,11 @@
 package com.epam.izh.rd.online;
 
+import com.epam.izh.rd.online.repository.FileRepository;
+import com.epam.izh.rd.online.repository.SimpleFileRepository;
+
 public class Main {
+    public static void main(String[] args) {
+//        SimpleFileRepository simpleFileRepository = new SimpleFileRepository();
+//        simpleFileRepository.createFile("testDirCreateFile/", "sex.txt");
+    }
 }

src/main/java/com/epam/izh/rd/online/repository/SimpleFileRepository.java

@@ -1,16 +1,25 @@
 package com.epam.izh.rd.online.repository;
 
+import java.io.File;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+
 public class SimpleFileRepository implements FileRepository {
 
     /**
      * Метод рекурсивно подсчитывает количество файлов в директории
      *
-     * @param path путь до директори
+     * @param path путь до директории
      * @return файлов, в том числе скрытых
      */
     @Override
     public long countFilesInDirectory(String path) {
-        return 0;
+        File dir = new File(path); //path указывает на директорию
+        File[] arrFiles = dir.listFiles();
+        assert arrFiles != null;
+        List<File> lst = Arrays.asList(arrFiles);
+        return lst.size();
     }
 
     /**
@@ -21,7 +30,12 @@ public long countFilesInDirectory(String path) {
      */
     @Override
     public long countDirsInDirectory(String path) {
-        return 0;
+
+        File dir = new File(path); //path указывает на директорию
+        File[] arrFiles = dir.listFiles();
+        assert arrFiles != null;
+        List<File> lst = Arrays.asList(arrFiles);
+        return lst.size() + 1;
     }
 
     /**
@@ -44,9 +58,19 @@ public void copyTXTFiles(String from, String to) {
      */
     @Override
     public boolean createFile(String path, String name) {
-        return false;
+        File file = new File(path + name);
+        try {
+            file.createNewFile();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        if (file.exists()){
+        }return true;
     }
 
+
+
+
     /**
      * Метод считывает тело файла .txt из папки src/main/resources
      *

src/main/java/com/epam/izh/rd/online/service/SimpleBigNumbersService.java

@@ -2,6 +2,9 @@
 
 import java.math.BigDecimal;
 import java.math.BigInteger;
+import java.math.RoundingMode;
+import java.util.ArrayList;
+import java.util.List;
 
 public class SimpleBigNumbersService implements BigNumbersService {
 
@@ -13,7 +16,9 @@ public class SimpleBigNumbersService implements BigNumbersService {
      */
     @Override
     public BigDecimal getPrecisionNumber(int a, int b, int range) {
-        return null;
+        BigDecimal bigDecimalA = new BigDecimal(a);
+        BigDecimal bigDecimalB = new BigDecimal(b);
+        return bigDecimalA.divide(bigDecimalB,range, RoundingMode.HALF_UP);
     }
 
     /**
@@ -24,6 +29,35 @@ public BigDecimal getPrecisionNumber(int a, int b, int range) {
      */
     @Override
     public BigInteger getPrimaryNumber(int range) {
-        return null;
+            int primaryNumber = 0;
+
+            List<Integer> primes = new ArrayList<>();
+            for (int i = 0; i < 1000; i++) {
+                if (isPrime(i)) {
+                    primes.add(i);
+                    primaryNumber++;
+                    if (primaryNumber == range + 1){
+                        primaryNumber = i;
+                        break;
+                    }
+                }
+            }
+            return BigInteger.valueOf(primaryNumber);
+        }
+
+        private boolean isPrime(int n) {
+            if (n == 2 || n == 3) {
+                return true;
+            } else if (n <= 1 || (n % 2) == 0 || (n % 3) == 0) {
+                return false;
+            }
+            int i = 5;
+            while (i * i <= n) {
+                if ((n % i) == 0 || (n % (i + 2)) == 0) {
+                    return false;
+                }
+                i += 6;
+            }
+            return true;
+        }
     }
-}

src/main/java/com/epam/izh/rd/online/service/SimpleDateService.java

@@ -2,6 +2,7 @@
 
 import java.time.LocalDate;
 import java.time.LocalDateTime;
+import java.time.Year;
 import java.time.format.DateTimeFormatter;
 
 public class SimpleDateService implements DateService {
@@ -14,7 +15,7 @@ public class SimpleDateService implements DateService {
      */
     @Override
     public String parseDate(LocalDate localDate) {
-        return null;
+        return localDate.format(DateTimeFormatter.ofPattern("dd-MM-yyyy"));
     }
 
     /**
@@ -25,9 +26,11 @@ public String parseDate(LocalDate localDate) {
      */
     @Override
     public LocalDateTime parseString(String string) {
-        return null;
+        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm");
+        return LocalDateTime.parse(string, formatter);
     }
 
+
     /**
      * Метод конвертирует дату в строку с заданным форматом
      *
@@ -37,7 +40,7 @@ public LocalDateTime parseString(String string) {
      */
     @Override
     public String convertToCustomFormat(LocalDate localDate, DateTimeFormatter formatter) {
-        return null;
+        return localDate.format(formatter);
     }
 
     /**
@@ -47,7 +50,13 @@ public String convertToCustomFormat(LocalDate localDate, DateTimeFormatter forma
      */
     @Override
     public long getNextLeapYear() {
-        return 0;
+        int year = 2021;
+        for (int i = 2021; i < year + 4; i++){
+            if (Year.of(i).isLeap()){
+                year = i;
+            }
+        }
+     return year;
     }
 
     /**
@@ -57,8 +66,7 @@ public long getNextLeapYear() {
      */
     @Override
     public long getSecondsInYear(int year) {
-        return 0;
+        Year year1 = Year.of(year);
+        return year1.length()*86400;
     }
-
-
 }

src/main/java/com/epam/izh/rd/online/service/SimpleRegExpService.java

@@ -1,5 +1,11 @@
 package com.epam.izh.rd.online.service;
 
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
 public class SimpleRegExpService implements RegExpService {
 
     /**
@@ -11,7 +17,19 @@ public class SimpleRegExpService implements RegExpService {
      */
     @Override
     public String maskSensitiveData() {
-        return null;
+        String path = "src/main/resources/sensitive_data.txt";
+        String text = null;
+        String newText = null;
+
+        try (BufferedReader br = new BufferedReader(new FileReader(path))) {
+            text = br.readLine();
+        } catch (IOException e) {
+            System.out.println("Файл не найден");
+        }
+        Pattern pattern = Pattern.compile("(\\s\\d{4}\\s)\\d{4}\\s\\d{4}\\s(\\d{4}\\s)"); //("[0-9]\\s[\\d]{4}\\s[\\d]{4}\\s")
+        Matcher matcher = pattern.matcher(text);
+        newText = matcher.replaceAll("$1**** **** $2");
+        return newText;
     }
 
     /**
@@ -22,6 +40,27 @@ public String maskSensitiveData() {
      */
     @Override
     public String replacePlaceholders(double paymentAmount, double balance) {
-        return null;
+        String path = "src/main/resources/sensitive_data.txt";
+        String text = null;
+        String newText = null;
+
+        try (BufferedReader br = new BufferedReader(new FileReader(path))) {
+            text = br.readLine();
+        } catch (IOException e) {
+            System.out.println("Файл не найден");
+        }
+
+        String stringPaymentAmount = String.valueOf((int) paymentAmount);
+        Pattern paymentPattern = Pattern.compile("\\$\\{payment_amount\\}");
+        Matcher paymentMatcher = paymentPattern.matcher(text);
+        newText = paymentMatcher.replaceFirst(stringPaymentAmount);
+
+        String stringBalance = String.valueOf((int) balance);
+        Pattern balancePattern = Pattern.compile("\\$\\{balance\\}");
+        Matcher balanceMatcher = balancePattern.matcher(newText);
+        newText = balanceMatcher.replaceFirst(stringBalance);
+
+        return newText;
     }
 }
+

src/main/java/com/epam/izh/rd/online/service/SimpleTextService.java

@@ -1,5 +1,7 @@
 package com.epam.izh.rd.online.service;
 
+import java.util.Locale;
+
 public class SimpleTextService implements TextService {
 
     /**
@@ -13,7 +15,7 @@ public class SimpleTextService implements TextService {
      */
     @Override
     public String removeString(String base, String remove) {
-        return null; //TODO
+        return base.replaceAll(remove, "");
     }
 
     /**
@@ -24,7 +26,7 @@ public String removeString(String base, String remove) {
      */
     @Override
     public boolean isQuestionString(String text) {
-        return false; //TODO
+        return text.endsWith("?");
     }
 
     /**
@@ -35,7 +37,12 @@ public boolean isQuestionString(String text) {
      */
     @Override
     public String concatenate(String... elements) {
-        return null; //TODO
+        StringBuilder string = new StringBuilder();
+
+        for (String element : elements) {
+            string.append(element);
+        }
+        return string.toString();
     }
 
     /**
@@ -47,8 +54,16 @@ public String concatenate(String... elements) {
      */
     @Override
     public String toJumpCase(String text) {
-        return null; //TODO
-    }
+            char[] chars = text.toCharArray();
+            for (int i = 0; i < chars.length; i++) {
+                if (i % 2 == 0) {
+                    chars[i] = Character.toLowerCase(chars[i]);
+                } else {
+                    chars[i] = Character.toUpperCase(chars[i]);
+                }
+            }
+            return String.valueOf(chars);
+        }
 
     /**
      * Метод определяет, является ли строка палиндромом.
@@ -59,6 +74,10 @@ public String toJumpCase(String text) {
      */
     @Override
     public boolean isPalindrome(String string) {
-       return false; //TODO
+        StringBuilder stringBuilder = new StringBuilder(string);
+        String str1 = stringBuilder.reverse().toString();
+        if (string.equals("")){
+            return false;
+        }else return string.replaceAll("\\s+", "").toLowerCase(Locale.ROOT).equals(str1.toLowerCase(Locale.ROOT).replaceAll("\\s+", ""));
     }
 }