Aggiunta cartella netbeans e DataSet nuovo

NetBeans Projects/DataSet/src/dataset/DataSet.java

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+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+package dataset;
+
+import java.util.Arrays;
+
+/**
+ *
+ * @author gicorada
+ */
+public class DataSet {
+    private int[] dati;
+    private int dim;
+    private int min;
+    private int max;
+    private int raddoppi;
+
+    public DataSet(int n) {
+        dati = new int[100];
+        dati[0] = n;
+        dim = 1;
+        max = n;
+        min = n;
+        raddoppi = 0;
+    }
+    
+    public void add(int n) {
+        if(dim == dati.length) {
+            dati = Arrays.copyOf(dati, dim*2);
+            raddoppi++;
+        }
+        
+        dati[dim++] = n;
+        if(n<min) min = n;
+        if(n>max) max = n;
+    }
+    
+    public double media() {
+        int somma = 0;
+        for (int i = 0; i < dim; i++) {
+            somma += dati[i];
+        }
+        return 1.0*somma/dim;
+    }
+    
+    public double scarto(double m) {
+        double somma = 0;
+        double d;
+        
+        for (int i = 0; i < dim; i++) {
+            d = dati[i] - m;
+            somma += d*d;
+        }
+        return Math.sqrt(somma/dim);
+    }
+    
+    public int min() {
+        int minProv = dati[0];
+        
+        for (int i = 1; i < dim; i++) {
+            if(dati[i] < minProv) minProv = dati[i];
+        }
+        
+        return minProv;
+    }
+    
+    public int max() {
+        int maxProv = dati[0];
+        
+        for (int i = 1; i < dim; i++) {
+            if(dati[i] > maxProv) maxProv = dati[i];
+        }
+        
+        return maxProv;
+    }
+    
+    public int getRaddoppi() {
+        return raddoppi;
+    }
+}

NetBeans Projects/DataSet/src/dataset/Test.java

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+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+package dataset;
+
+import java.util.Random;
+
+/**
+ *
+ * @author gicorada
+ */
+public class Test {
+    public static void main(String[] args) {
+        DataSet set = new DataSet(1);
+        Random generator = new Random();
+        
+        for (int i = 0; i < 10000; i++) {
+            set.add(generator.nextInt(1000) - 100);
+        }
+        
+        System.out.println(set.max() + " " + set.min() + " " + set.media() + " " + set.scarto(set.media()) + " Raddoppi:" + set.getRaddoppi());
+    }
+}