From bc6936db7a76cf0b4eb65230f3d3556bccb6b0f4 Mon Sep 17 00:00:00 2001
From: Irina <ilvivng@inbox.ru>
Date: Fri, 20 Aug 2021 19:47:37 +0300
Subject: [PATCH 1/2] lesson4

HomeWork

Irina Chernova
---
 Main.java      | 43 +++++++++++++++++++++++++++++++++++++++++++
 PhoneBook.java | 24 ++++++++++++++++++++++++
 2 files changed, 67 insertions(+)
 create mode 100644 Main.java
 create mode 100644 PhoneBook.java

diff --git a/Main.java b/Main.java
new file mode 100644
index 0000000..b4d26ef
--- /dev/null
+++ b/Main.java
@@ -0,0 +1,43 @@
+package ru.gb.lesson4;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Arrays;
+
+public class Main {
+    public static void main(String[] args) {
+        List<String> stringList = new ArrayList<>(Arrays.asList("один", "два", "три", "два", "два", "пять"));
+
+        printWithoutDuplicates(stringList);
+        countDuplicates(stringList);
+        testPhoneBook();
+    }
+    public static void printWithoutDuplicates(List<String> input) {
+        Set<String> inputSet = new HashSet<>(input);
+        System.out.println(inputSet);
+    }
+    public static void countDuplicates(List<String> input) {
+        Set<String> inputSet = new HashSet<>(input);
+        for (String word : input) {
+            int count = 0;
+            for (String inner : input) {
+                if (word.equals(inner)) {
+                    count++;
+                }
+            }
+            System.out.printf("%s: %d\n", word, count);
+        }
+    }
+    public static void testPhoneBook() {
+        PhoneBook.add("Ivanov", "+8 495 123");
+        PhoneBook.add("Petrov", "+8 495 234");
+        PhoneBook.add("Sidorov", "+8 495 345");
+        PhoneBook.add("Ivanov", "+8 495 456");
+        PhoneBook.add("Chernov", "+8 495 567");
+        PhoneBook.add("Popov", "+8 495 678");
+
+        PhoneBook.get("Ivanov");
+    }
+}
diff --git a/PhoneBook.java b/PhoneBook.java
new file mode 100644
index 0000000..7890f3e
--- /dev/null
+++ b/PhoneBook.java
@@ -0,0 +1,24 @@
+package ru.gb.lesson4;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+
+public class PhoneBook {
+    private static final Map<String, List<String>> phoneBook = new HashMap<>();
+
+    public static void add(String name, String... phonesToAdd) {
+        if(phoneBook.get(name) != null) {
+            List<String> phones = new ArrayList<>(phoneBook.get(name));
+            phones.addAll(List.of(phonesToAdd));
+            phoneBook.put(name, phones);
+        } else {
+            phoneBook.put(name, List.of(phonesToAdd));
+        }
+    }
+    public static void get(String name) {
+        System.out.printf("%s: %s\n", name, phoneBook.get(name));
+    }
+}

From caf4ed1278fecd37c1b942f0f102756f7d60b3a3 Mon Sep 17 00:00:00 2001
From: Irina <ilvivng@inbox.ru>
Date: Fri, 20 Aug 2021 19:58:49 +0300
Subject: [PATCH 2/2] =?UTF-8?q?=D0=98=D1=81=D0=BF=D1=80=D0=B0=D0=B2=D0=BB?=
 =?UTF-8?q?=D0=B5=D0=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 PhoneBook.java | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/PhoneBook.java b/PhoneBook.java
index 7890f3e..a6a35a5 100644
--- a/PhoneBook.java
+++ b/PhoneBook.java
@@ -4,6 +4,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Arrays;
 
 
 public class PhoneBook {
@@ -12,10 +13,10 @@ public class PhoneBook {
     public static void add(String name, String... phonesToAdd) {
         if(phoneBook.get(name) != null) {
             List<String> phones = new ArrayList<>(phoneBook.get(name));
-            phones.addAll(List.of(phonesToAdd));
-            phoneBook.put(name, phones);
+            phones.addAll(Arrays.asList(phonesToAdd));
+           phoneBook.put(name, phones);
         } else {
-            phoneBook.put(name, List.of(phonesToAdd));
+            phoneBook.put(name, Arrays.asList(phonesToAdd));
         }
     }
     public static void get(String name) {