Few modifications to the Java files

AHP_Fuzzy_TOPSIS.iml

@@ -1,20 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
+<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_7">
+    <output url="file://$MODULE_DIR$/target/classes" />
+    <output-test url="file://$MODULE_DIR$/target/test-classes" />
     <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <excludeFolder url="file://$MODULE_DIR$/target" />
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="module-library">
-      <library>
-        <CLASSES>
-          <root url="jar://$USER_HOME$/Downloads/commons-math3-3.6.1 2/commons-math3-3.6.1.jar!/" />
-        </CLASSES>
-        <JAVADOC />
-        <SOURCES />
-      </library>
-    </orderEntry>
+    <orderEntry type="library" name="Maven: org.apache.commons:commons-math3:3.6.1" level="project" />
   </component>
 </module>

src/AHP.java → src/main/java/AHP.java

@@ -5,22 +5,22 @@
 public class AHP {
 
     // Random Consistency Index
-    private static double RI[] = {0.0, 0.0, 0.58, 0.9, 1.12, 1.24, 1.32, 1.41, 1.45, 1.49};
+    private static double[] RI = {0.0, 0.0, 0.58, 0.9, 1.12, 1.24, 1.32, 1.41, 1.45, 1.49};
 
     // The matrix
     private Array2DRowRealMatrix mtx;
 
     // Pairwise Comparison Array of criteria
-    private double pairwiseComparisonArray[];
+    private double[] pairwiseComparisonArray;
 
     // Number of alternatives
     private int nrAlternatives;
 
     // The resulting weights/priorities
-    private double weights[];
+    private double[] weights;
 
     // Corresponds to the weights
-    private String labels[] = null;
+    private String[] labels = null;
 
     private EigenDecomposition evd;
 
@@ -35,7 +35,7 @@ public class AHP {
      */
     private int evIdx = 0; // index of actual eigenvalue/-vector
 
-    AHP(String labels[]) {
+    AHP(String[] labels) {
         this(labels.length);
         this.labels = labels;
     }
@@ -79,7 +79,7 @@ int getNrOfPairwiseComparisons() {
      * Set the pairwise comparison scores and calculate all relevant numbers
      * @param a
      */
-    void setPairwiseComparisonArray(double a[]) {
+    void setPairwiseComparisonArray(double[] a) {
         int i = 0;
         for (int row = 0; row < nrAlternatives; row++) {
             for (int col = row + 1; col < nrAlternatives; col++) {
@@ -126,6 +126,7 @@ int[] getIndicesForPairwiseComparison(int arrayIdx) {
      * @return resulting weights for alternatives
      */
     double[] getWeights() {
+        final double[] weights = this.weights;
         return weights;
     }
 

src/Config.java → src/main/java/Config.java

@@ -3,10 +3,10 @@
 class Config {
 
     // Set your alternatives here
-    static String alternatives[] = new String[]{"Mobile", "Edge", "Public"};
+    static String[] alternatives = new String[]{"Mobile", "Edge", "Public"};
 
     // Set your criteria here
-    static String criteria[] = new String[]{"Bandwidth", "Speed", "Availability", "Security", "Price"};
+    static String[] criteria = new String[]{"Bandwidth", "Speed", "Availability", "Security", "Price"};
 
     // Set true for benefir criterion, false for cost criterion
     static boolean[] costCriteria = new boolean[]{false, false, false, false, true}; // price is cost

src/Test.java → src/main/java/Test.java

@@ -1,14 +1,10 @@
-import java.util.HashMap;
-import java.util.Map;
-import java.util.TreeMap;
-
 public class Test {
 
     private void calculateAHP(){
 
         AHP ahp = new AHP(Config.criteria);
 
-        double compArray[] = ahp.getPairwiseComparisonArray();
+        double[] compArray = ahp.getPairwiseComparisonArray();
 
         // Set the pairwise comparison values
         compArray[0] = Config.BANDWIDTH_SPEED;

src/Topsis.java → src/main/java/Topsis.java

@@ -5,19 +5,19 @@
 import java.util.Map;
 import java.util.TreeMap;
 
-public class Topsis {
+class Topsis {
 
     private HashMap<String, ArrayList<Double>> sitesMatrix;
     private HashMap<String, ArrayList<Fuzzy>> availableSites;
     private ArrayList<Fuzzy> criteriaImportance;
 
-    public Topsis(){
+    Topsis(){
         criteriaImportance = new ArrayList<>();
-        sitesMatrix =new HashMap<>();
+        sitesMatrix = new HashMap<>();
         availableSites = new HashMap<>();
     }
 
-    public void start(){
+    void start(){
         for (String alternative : Config.alternatives) {
             criteriaImportance = profileNode(alternative);
             availableSites.put(alternative, criteriaImportance);
@@ -47,7 +47,7 @@ private HashMap<String, ArrayList<Double>> calculateFuzzyTopsis(HashMap<String,
 
             System.out.println(entry);
 
-            ArrayList<Double> weightedMatrix = new ArrayList<>();
+            ArrayList<Double> weightedMatrix = new ArrayList<Double>();
 
             for (int k = 0; k < entry.getValue().size(); k++) {
                 for (double fuzzyValue:entry.getValue().get(k).getValue()) {
@@ -112,7 +112,7 @@ else if (node.equalsIgnoreCase(Config.alternatives[1])) { // Edge
     private HashMap<String, Double> calculateDistance(HashMap<String, ArrayList<Double>> sitesMatrix, boolean ideal) {
         EuclideanDistance distance = new EuclideanDistance();
         // The normalized values for the ideal solution and negative ideal solution on criteria are always (1,1,1) and (0,0,0) respectively
-        Double dValue = 0.0;
+        double dValue = 0.0;
         HashMap<String, Double> results = new HashMap<>();
 
         for (Map.Entry<String,ArrayList<Double>> entry: sitesMatrix.entrySet()) {