task2 mihailov alex

IFMO_JAVA_Basics_20182009.iml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module external.linked.project.id="IFMO_JAVA_Basics_20182009" external.linked.project.path="$MODULE_DIR$" external.root.project.path="$MODULE_DIR$" external.system.id="GRADLE" external.system.module.group="" external.system.module.version="unspecified" type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <output url="file://$MODULE_DIR$/out/production/classes" />
+    <output-test url="file://$MODULE_DIR$/out/test/classes" />
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/resources" type="java-test-resource" />
+      <excludeFolder url="file://$MODULE_DIR$/.gradle" />
+      <excludeFolder url="file://$MODULE_DIR$/build" />
+      <excludeFolder url="file://$MODULE_DIR$/out" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Gradle: org.apache.commons:commons-lang3:3.4" level="project" />
+    <orderEntry type="library" name="Gradle: com.google.guava:guava:22.0" level="project" />
+    <orderEntry type="library" name="Gradle: com.google.code.findbugs:jsr305:1.3.9" level="project" />
+    <orderEntry type="library" name="Gradle: com.google.errorprone:error_prone_annotations:2.0.18" level="project" />
+    <orderEntry type="library" name="Gradle: com.google.j2objc:j2objc-annotations:1.1" level="project" />
+    <orderEntry type="library" name="Gradle: org.codehaus.mojo:animal-sniffer-annotations:1.14" level="project" />
+    <orderEntry type="library" scope="TEST" name="Gradle: org.junit.jupiter:junit-jupiter-api:5.2.0" level="project" />
+    <orderEntry type="library" scope="TEST" name="Gradle: org.junit.platform:junit-platform-commons:1.2.0" level="project" />
+    <orderEntry type="library" scope="TEST" name="Gradle: org.apiguardian:apiguardian-api:1.0.0" level="project" />
+    <orderEntry type="library" scope="TEST" name="Gradle: org.opentest4j:opentest4j:1.1.0" level="project" />
+    <orderEntry type="library" scope="TEST" name="Gradle: org.junit.jupiter:junit-jupiter-engine:5.2.0" level="project" />
+    <orderEntry type="library" scope="TEST" name="Gradle: org.junit.platform:junit-platform-engine:1.2.0" level="project" />
+  </component>
+</module>

src/main/java/ru/ifmo/cet/javabasics/WarAndPeaceExercise.java

@@ -1,21 +1,62 @@
 package ru.ifmo.cet.javabasics;
 
-import java.nio.file.Path;
-import java.nio.file.Paths;
+import java.io.IOException;
+import java.util.*;
+import java.io.File;
 
 
-public class WarAndPeaceExercise {
-
-    public static String warAndPeace() {
-        final Path tome12Path = Paths.get("src", "main", "resources", "WAP12.txt");
-        final Path tome34Path = Paths.get("src", "main", "resources", "WAP34.txt");
 
-        // TODO map lowercased words to its amount in text and concatenate its entries.
-        // TODO If word "котик" occurred in text 23 times then its entry would be "котик - 23\n".
-        // TODO Entries in final String should be also sorted by amount and then in alphabetical order if needed.
-        // TODO Also omit any word with lengths less than 4 and frequency less than 10
+public class WarAndPeaceExercise {
 
-        throw new UnsupportedOperationException();
+    public static String warAndPeace() throws IOException {
+//считывание в мапу
+        Scanner in = new Scanner(new File("src/main/resources/WAP12.txt"));
+        HashMap<String,Integer> vocabulary= new HashMap<>();
+        readWords(in, vocabulary);
+        in = new Scanner(new File("src/main/resources/WAP34.txt"));
+        readWords(in, vocabulary);
+//удаление слов<10
+        for(Iterator<HashMap.Entry<String, Integer>> it=vocabulary.entrySet().iterator();it.hasNext();) {
+            HashMap.Entry<String, Integer> entry = it.next();
+            if (entry.getValue() < 10) {
+                it.remove();
+            }
+        }
+        ArrayList<String> res_array= new ArrayList<>();
+        while (!vocabulary.isEmpty()){
+            HashMap.Entry<String, Integer> max=vocabulary.entrySet().iterator().next();
+            for (Map.Entry<String, Integer> pair : vocabulary.entrySet()) {
+                if (max.getValue() < pair.getValue()) {
+                    max = pair;
+                } else if (max.getValue().equals(pair.getValue())) {
+                    if (max.getKey().compareTo(pair.getKey()) > 0) {
+                        max = pair;
+                    }
+                }
+            }
+            String string=max.getKey()+ " - "+max.getValue();
+            res_array.add(string);
+            vocabulary.remove(max.getKey());
+        }
+        String res_string="";
+        for(String s:res_array) {
+            res_string=s.concat("\n");
+        }
+        res_string = res_string.substring(0, res_string.length() - 1);
+        return res_string;
+    }
+    public static void readWords(Scanner in, HashMap<String, Integer> vocabulary) {
+        while(in.hasNext()){
+            String[] words= (in.nextLine().toLowerCase().replaceAll("[^a-z\u0430-\u044f]", " ")).split(" ");
+            for (String word:words) {
+                if(word.length()<4) continue;
+                Integer value=vocabulary.get(word);
+                if (vocabulary.get(word) == null) {
+                    vocabulary.put(word,1);
+                }else{
+                    vocabulary.put(word,++value);
+                }
+            }
+        }
     }
-
 }