From 676f55e8720e8ec6cc00a73e3bcb1526318a948e Mon Sep 17 00:00:00 2001
From: rahusriv <rahusr@gmail.com>
Date: Sun, 30 Dec 2018 08:40:43 +0530
Subject: [PATCH] BAEL-2335 (#6015)

* Making examples simple

* Changing variable names
---
 .../ArrayListOfArrayList.java                 | 26 +++++++++----------
 .../ThreeDimensionalArrayList.java            | 16 ++++++------
 2 files changed, 20 insertions(+), 22 deletions(-)

diff --git a/core-java-collections-list/src/main/java/com/baeldung/list/multidimensional/ArrayListOfArrayList.java b/core-java-collections-list/src/main/java/com/baeldung/list/multidimensional/ArrayListOfArrayList.java
index 72045d6761..2c3da7b1fc 100644
--- a/core-java-collections-list/src/main/java/com/baeldung/list/multidimensional/ArrayListOfArrayList.java
+++ b/core-java-collections-list/src/main/java/com/baeldung/list/multidimensional/ArrayListOfArrayList.java
@@ -6,30 +6,28 @@ public class ArrayListOfArrayList {
 
     public static void main(String args[]) {
 
-        int vertex = 5;
-        ArrayList<ArrayList<Integer>> graph = new ArrayList<>(vertex);
+        int numVertices = 3;
+        ArrayList<ArrayList<Integer>> graph = new ArrayList<>(numVertices);
 
         //Initializing each element of ArrayList with ArrayList
-        for(int i=0; i< vertex; i++) {
+        for(int i=0; i< numVertices; i++) {
             graph.add(new ArrayList<Integer>());
         }
 
         //We can add any number of columns to each row
         graph.get(0).add(1);
-        graph.get(0).add(5);
-        graph.get(1).add(0);
         graph.get(1).add(2);
+        graph.get(2).add(0);
+        graph.get(1).add(0);
         graph.get(2).add(1);
-        graph.get(2).add(3);
-        graph.get(3).add(2);
-        graph.get(3).add(4);
-        graph.get(4).add(3);
-        graph.get(4).add(5);
-
+        graph.get(0).add(2);
+      
         //Printing all the edges
-        for(int i=0; i<vertex; i++) {
-            for(int j=0; j<graph.get(i).size(); j++) {
-                System.out.println("Edge between vertex "+i+"and "+graph.get(i).get(j));
+        for(int vertexNo=0; vertexNo<numVertices; vertexNo++) {
+            int edgeCount = graph.get(vertexNo).size();
+            ArrayList<Integer> listOfVertices = graph.get(vertexNo);
+            for(int i=0; i<edgeCount; i++) {
+                System.out.println("Vertex "+vertexNo+" is connected to vetex "+listOfVertices.get(i));
             }
         }
     }
diff --git a/core-java-collections-list/src/main/java/com/baeldung/list/multidimensional/ThreeDimensionalArrayList.java b/core-java-collections-list/src/main/java/com/baeldung/list/multidimensional/ThreeDimensionalArrayList.java
index 1f6e862b8c..24a3115e10 100644
--- a/core-java-collections-list/src/main/java/com/baeldung/list/multidimensional/ThreeDimensionalArrayList.java
+++ b/core-java-collections-list/src/main/java/com/baeldung/list/multidimensional/ThreeDimensionalArrayList.java
@@ -20,17 +20,17 @@ public class ThreeDimensionalArrayList {
         }
 
         //Set Red color for points (0,0,0) and (0,0,1)
-        space.get(0).get(0).add("Red");
-        space.get(0).get(0).add("Red");
+        space.get(0).get(0).add(0,"Red");
+        space.get(0).get(0).add(1,"Red");
         //Set Blue color for points (0,1,0) and (0,1,1)
-        space.get(0).get(1).add("Blue");
-        space.get(0).get(1).add("Blue");
+        space.get(0).get(1).add(0,"Blue");
+        space.get(0).get(1).add(1,"Blue");
         //Set Green color for points (1,0,0) and (1,0,1)
-        space.get(1).get(0).add("Green");
-        space.get(1).get(0).add("Green");
+        space.get(1).get(0).add(0,"Green");
+        space.get(1).get(0).add(1,"Green");
         //Set Yellow color for points (1,1,0) and (1,1,1)
-        space.get(1).get(1).add("Yellow");
-        space.get(1).get(1).add("Yellow");
+        space.get(1).get(1).add(0,"Yellow");
+        space.get(1).get(1).add(1,"Yellow");
 
         //Printing colors for all the points
         for(int i=0; i<x_axis_length; i++) {