diff --git a/Boosting.java b/Boosting.java
new file mode 100644
index 0000000..48c6907
--- /dev/null
+++ b/Boosting.java
@@ -0,0 +1,14 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package ru.caf82.result.machinelearning.models;
+
+/**
+ *
+ * @author Вика
+ */
+ class Boosting extends Model{
+    
+}
diff --git a/Dao.java b/Dao.java
new file mode 100644
index 0000000..515d9b3
--- /dev/null
+++ b/Dao.java
@@ -0,0 +1,14 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package ru.caf82.result.others;
+
+/**
+ *
+ * @author Вика
+ */
+public interface Dao {
+    
+}
diff --git a/DaoImplementation.java b/DaoImplementation.java
new file mode 100644
index 0000000..0f06f07
--- /dev/null
+++ b/DaoImplementation.java
@@ -0,0 +1,14 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package ru.caf82.result.others;
+
+/**
+ *
+ * @author Вика
+ */
+public class DaoImplementation {
+    
+}
diff --git a/EmptyArrayException.java b/EmptyArrayException.java
new file mode 100644
index 0000000..b7ddc1b
--- /dev/null
+++ b/EmptyArrayException.java
@@ -0,0 +1,43 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package src.result.exceptions;
+
+/**
+ *
+ * @author Вика
+ */
+public class EmptyArrayException extends Exception{
+  public EmptyArrayException(){
+      super();
+  }
+public EmptyArrayException(String message){
+   super(message); 
+}
+public EmptyArrayException(String message, Throwable cause){
+super(message, cause);
+}
+public EmptyArrayException(Throwable cause){
+super(cause);
+}
+   public static void dotProduct(double[] a, double[] b) throws EmptyArrayException{
+     
+     if ((b.length == 0) || (a.length == 0) ) {
+         throw new EmptyArrayException("Нулевые массивы");
+     }
+ } 
+   public static void main(String[] args) {
+     double[] a = {};        
+     double[] b = {1};
+     EmptyArrayException sed = new EmptyArrayException();
+        try { sed.dotProduct(a,b);
+            
+     
+     } catch(EmptyArrayException e){
+            System.out.println("Мы поймали ошибку!");
+     }
+
+}
+}
\ No newline at end of file
diff --git a/FileReader.java b/FileReader.java
new file mode 100644
index 0000000..2ca60c2
--- /dev/null
+++ b/FileReader.java
@@ -0,0 +1,14 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package ru.caf82.result.workwithfiles;
+
+/**
+ *
+ * @author Вика
+ */
+public interface FileReader extends FileWorker {
+    
+}
diff --git a/FileWorker.java b/FileWorker.java
new file mode 100644
index 0000000..6a83f66
--- /dev/null
+++ b/FileWorker.java
@@ -0,0 +1,14 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package ru.caf82.result.workwithfiles;
+
+/**
+ *
+ * @author Вика
+ */
+public interface FileWorker {
+    
+}
diff --git a/FileWriter.java b/FileWriter.java
new file mode 100644
index 0000000..280409e
--- /dev/null
+++ b/FileWriter.java
@@ -0,0 +1,14 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package ru.caf82.result.workwithfiles;
+
+/**
+ *
+ * @author Вика
+ */
+public interface FileWriter extends FileWorker{
+    
+}
diff --git a/InconveninentShapeException.java b/InconveninentShapeException.java
new file mode 100644
index 0000000..f932c66
--- /dev/null
+++ b/InconveninentShapeException.java
@@ -0,0 +1,44 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package src.result.exceptions;
+
+/**
+ *
+ * @author Вика
+ */
+ class InconveninentShapeException  extends Exception{
+  public InconveninentShapeException(){
+      super();
+  }
+public InconveninentShapeException(String message){
+   super(message); 
+}
+public InconveninentShapeException(String message, Throwable cause){
+super(message, cause);
+}
+public InconveninentShapeException(Throwable cause){
+super(cause);
+}
+  
+ public static void dotProduct(double[] a, double[] b) throws InconveninentShapeException{
+     if (a.length != b.length) { 
+         throw new InconveninentShapeException("Разные размеры массивов");
+     }
+ }
+ public static void main(String[] args) {
+     double[] a = {1, 2, 3, 4};        
+     double[] b = {1, 1, 1, 1, 2};
+     InconveninentShapeException sed = new InconveninentShapeException();
+        try { sed.dotProduct(a,b);
+            
+     
+     } catch(InconveninentShapeException e){
+            System.out.println("Мы поймали ошибку!");
+     }
+            
+ }
+ }
+ 
\ No newline at end of file
diff --git a/KNeighbourhood.java b/KNeighbourhood.java
new file mode 100644
index 0000000..f8062ab
--- /dev/null
+++ b/KNeighbourhood.java
@@ -0,0 +1,14 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package ru.caf82.result.machinelearning.models;
+
+/**
+ *
+ * @author Вика
+ */
+ class KNeighbourhood extends Model{
+    
+}
diff --git a/LinearKernel.java b/LinearKernel.java
new file mode 100644
index 0000000..4e90177
--- /dev/null
+++ b/LinearKernel.java
@@ -0,0 +1,14 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package ru.caf82.result.machinelearning.models;
+
+/**
+ *
+ * @author Вика
+ */
+class LinearKernel extends KNeighbourhood{
+    
+}
diff --git a/LogisticRegression.java b/LogisticRegression.java
new file mode 100644
index 0000000..9a7bdf3
--- /dev/null
+++ b/LogisticRegression.java
@@ -0,0 +1,14 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package ru.caf82.result.machinelearning.models;
+
+/**
+ *
+ * @author Вика
+ */
+ class LogisticRegression extends Model{
+    
+}
diff --git a/MathService.java b/MathService.java
new file mode 100644
index 0000000..5006cec
--- /dev/null
+++ b/MathService.java
@@ -0,0 +1,58 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package src.result.others;
+
+/**
+ *
+ * @author Вика
+ */
+public class MathService {
+ public static double dotProduct(double[] a, double[] b){
+     double result = 0;
+     for (int i = 0; i < a.length; i++) {
+         result += a[i]*b[i];
+     }
+     
+     
+     return result;
+ }   
+
+
+public static double sigmoid(double x){
+    
+   double d = Math.exp(-x);
+    
+   double result = 1/(1+d);
+    
+    return result;
+}
+public static double sigmoid(double[] p, double[] w){
+   double k = 0;
+     for (int i = 0; i < p.length; i++) {
+        k += p[i]*w[i];
+     } 
+     double f = Math.exp(-k);
+    
+   double result = 1/(1+f);
+    
+    return result;
+}
+
+public static void main(String[] args) {
+ double x = 2;
+  double[] a = {1, 2, 3, 4};        
+ double[] b = {1, 1, 1, 1};
+double[] p = {1, 1, 1, 1};        
+ double[] w = {1, 1, 1, 1};
+ 
+System.out.println(MathService.dotProduct(a,b));
+System.out.println(MathService.sigmoid(x));
+System.out.println(MathService.sigmoid(p,w));
+}
+
+}
+
+
diff --git a/Model.java b/Model.java
new file mode 100644
index 0000000..a1b4bf4
--- /dev/null
+++ b/Model.java
@@ -0,0 +1,14 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package ru.caf82.result.machinelearning.models;
+
+/**
+ *
+ * @author Вика
+ */
+abstract class Model {
+    
+}
diff --git a/ModelSelectionHibernateEntity.java b/ModelSelectionHibernateEntity.java
new file mode 100644
index 0000000..ecd8efb
--- /dev/null
+++ b/ModelSelectionHibernateEntity.java
@@ -0,0 +1,14 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package ru.caf82.result.others;
+
+/**
+ *
+ * @author Вика
+ */
+public class ModelSelectionHibernateEntity {
+    
+}
diff --git a/NaiveBayes.java b/NaiveBayes.java
new file mode 100644
index 0000000..c31300e
--- /dev/null
+++ b/NaiveBayes.java
@@ -0,0 +1,14 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package ru.caf82.result.machinelearning.models;
+
+/**
+ *
+ * @author Вика
+ */
+class NaiveBayes extends Model{
+    
+}
diff --git a/NormalKernel.java b/NormalKernel.java
new file mode 100644
index 0000000..ba30726
--- /dev/null
+++ b/NormalKernel.java
@@ -0,0 +1,14 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package ru.caf82.result.machinelearning.models;
+
+/**
+ *
+ * @author Вика
+ */
+ class NormalKernel extends KNeighbourhood{
+    
+}
diff --git a/ReviewHibernateEntity.java b/ReviewHibernateEntity.java
new file mode 100644
index 0000000..95a4de0
--- /dev/null
+++ b/ReviewHibernateEntity.java
@@ -0,0 +1,14 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package ru.caf82.result.others;
+
+/**
+ *
+ * @author Вика
+ */
+public class ReviewHibernateEntity {
+    
+}
diff --git a/SwingModel.java b/SwingModel.java
new file mode 100644
index 0000000..2416739
--- /dev/null
+++ b/SwingModel.java
@@ -0,0 +1,14 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package ru.caf82.result.others;
+
+/**
+ *
+ * @author Вика
+ */
+public class SwingModel {
+    
+}
diff --git a/SwingTraining.java b/SwingTraining.java
new file mode 100644
index 0000000..f33a1c8
--- /dev/null
+++ b/SwingTraining.java
@@ -0,0 +1,14 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package ru.caf82.result.others;
+
+/**
+ *
+ * @author Вика
+ */
+public class SwingTraining {
+    
+}