TextTest.java added test method for txt.index methode

src/Text.java

@@ -1,9 +1,6 @@
 import java.io.File;
 import java.io.FileNotFoundException;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Scanner;
+import java.util.*;
 
 public class Text {
 
@@ -47,6 +44,12 @@ public class Text {
         return true;
     }
 
+    /**
+     * Method to get all paragraph of the existing instance.
+     *
+     * @return returns a ArrayList<String> with all text inside.
+     */
+
     public ArrayList<String> getText() {
         return text;
     }
@@ -98,6 +101,14 @@ public class Text {
         return true;
     }
 
+    /**
+     * This method deletes a specific Paragraph. As a Parameter it uses a int.
+     * If the Parameter is valid it deletes the specific Pararaph otherwise returns false
+     *
+     * @param paragraphNumber
+     * @return False: If the int is not a valid paragraph.
+     * @return True: If the int is a valid paragraph number
+     */
 
     public boolean del(int paragraphNumber) {
         if (paragraphExists(paragraphNumber)) {
@@ -107,31 +118,54 @@ public class Text {
         return false;
     }
 
+    /**
+     * This method deletes the last paragraph in the text Array.
+     *
+     * @return True: if paragraph has been deleted.
+     */
     public boolean del() {
         text.remove(text.size() - 1);
         return true;
     }
 
+    /**
+     * This method creates a ArrayList<String>.
+     * Every word which is used in the text more than 3 times
+     * will be added to the ArrayList with the paragraphes where the word is been used.
+     *
+     * @return ArrayList<String>
+     */
+
     public ArrayList<String> index() {
         wordbook = createWordlist();
         ArrayList<String> output = new ArrayList<>();
         for (Map.Entry<String, ArrayList<Integer>> entry : wordbook.entrySet()) {
             String key = entry.getKey();
             ArrayList<Integer> values = entry.getValue();
+            String input = "";
             if (values.get(0) >= 3) {
-                output.add(key);
-                for (int value : values) {
-                    output.add(String.valueOf(value));
+                input += key + " ";
+                for (int i = 1; i < values.size(); i++) {
+                    input += values.get(i) + ", ";
                 }
+                output.add(input);
             }
         }
         return output;
     }
 
+    /**
+     * This method counts all Words in text and adds them together with the paragraph where the word is been used to a Hashmap.
+     *
+     * @return HashMap<String, ArrayList < Integer>>
+     */
     private HashMap<String, ArrayList<Integer>> createWordlist() {
         for (int i = 0; i < text.size(); i++) {
             String[] woerter = text.get(i).trim().toLowerCase().split("[ :;.,!?><\'/]+");
             for (String wort : woerter) {
+                String firstLetter = wort.substring(0,1);
+                String restLetters = wort.substring(1);
+                wort = firstLetter.toUpperCase()+restLetters;
                 ArrayList<Integer> zahlenListe;
                 int zähler = 1;
                 if (wordbook.containsKey(wort)) {
@@ -147,7 +181,7 @@ public class Text {
                 } else {
                     zahlenListe = new ArrayList<>();
                     zahlenListe.add(1);
-                    zahlenListe.add(zähler);
+                    zahlenListe.add(i + 1);
                     wordbook.put(wort, zahlenListe);
                 }
             }

test/TextTest.java

@@ -1,25 +1,25 @@
+import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
 import java.util.ArrayList;
 import java.util.HashMap;
-import java.util.Map;
 
 public class TextTest {
     Text txt;
-    HashMap<String, ArrayList<Integer>> hMap;
     ArrayList<String> sListe;
 
     @BeforeEach
     void setup() {
         txt = new Text();
-        hMap = new HashMap<>();
-        sListe = new ArrayList<>();
-        sListe.add("Hallo hallo zusammen");
-        sListe.add("Hallo wie gehts");
     }
 
     @Test
     void indexTest() {
+        txt.add("Hallo Hallo zusammen !test!");
+        txt.add("Hallo,    wie zusammen");
+        txt.add("Hallo,wie wie zusammen");
+        sListe= txt.index();
+        Assertions.assertEquals("Hallo 1, 2, 3, ",sListe.get(0));
     }
 }