Added 2D ArrayList

NMKrastev · Jun 30, 2022 · d9ab03c · d9ab03c
1 parent 4f76b25
commit d9ab03c
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Showing 5 changed files with 51 additions and 1 deletion.
diff --git a/.idea/modules.xml b/.idea/modules.xml
diff --git a/06-ArrayList/06-ArrayList.iml b/06-ArrayList/06-ArrayList.iml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <module type="JAVA_MODULE" version="4">
   <component name="NewModuleRootManager">
-    <output url="file://$MODULE_DIR$/out/production/" />
+    <output url="file://$MODULE_DIR$/out/production" />
     <output-test url="file://$MODULE_DIR$/../out/test/06-ArrayList" />
     <exclude-output />
     <content url="file://$MODULE_DIR$">

diff --git a/07-2DArrayList/07-2DArrayList.iml b/07-2DArrayList/07-2DArrayList.iml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <output url="file://$MODULE_DIR$/out/production/" />
+    <output-test url="file://$MODULE_DIR$/../out/test/07-2DArrayList" />
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
diff --git a/07-2DArrayList/out/production/Main.class b/07-2DArrayList/out/production/Main.class
diff --git a/07-2DArrayList/src/Main.java b/07-2DArrayList/src/Main.java
@@ -0,0 +1,36 @@
+import java.util.*;
+public class Main {
+    public static void main(String[] args) {
+
+        //2D ArrayList - a dynamic list of lists
+        //You can change the size of these lists during runtime
+        ArrayList<String> bakeryList = new ArrayList();
+        bakeryList.add("flour");
+        bakeryList.add("butter");
+        bakeryList.add("eggs");
+
+        ArrayList<String> produceList = new ArrayList();
+        produceList.add("tomatoes");
+        produceList.add("cucumbers");
+        produceList.add("zucchini");
+
+        ArrayList<String> drinkList = new ArrayList();
+        drinkList.add("coca-cola");
+        drinkList.add("coffee");
+
+        //Adds all the Lists to one Lists
+        //Note: It's more organized
+        ArrayList<ArrayList<String>> groceryList = new ArrayList();
+        groceryList.add(bakeryList);
+        groceryList.add(produceList);
+        groceryList.add(drinkList);
+
+        //System.out.println(bakeryList.get(0));
+        //System.out.println(drinkList);
+        System.out.println(groceryList);
+        //Get one List from the 2D ArrayList
+        System.out.println(groceryList.get(0));
+        //Get certain element/value from one List inside 2D ArrayList
+        System.out.println(groceryList.get(2).get(0));
+    }
+}