diff --git a/src/tse/lr5/CsvReader.java b/src/com/annimon/io/CsvReader.java
similarity index 96%
rename from src/tse/lr5/CsvReader.java
rename to src/com/annimon/io/CsvReader.java
index 02305cd..1c82cca 100644
--- a/src/tse/lr5/CsvReader.java
+++ b/src/com/annimon/io/CsvReader.java
@@ -1,4 +1,4 @@
-package tse.lr5;
+package com.annimon.io;
 
 import java.io.BufferedReader;
 import java.io.File;
@@ -85,11 +85,10 @@ public class CsvReader<T> {
         }
         String line;
         while ( (line = reader.readLine()) != null ) {
-            T obj = null;
             try {
                 if (!line.isEmpty()) {
                     String[] params = line.split(separator);
-                    obj = (T) handler.createObject(params);
+                    handler.createObject(params);
                 }
             } catch (RuntimeException ex) {
                 Util.handleException(ex);
diff --git a/src/com/annimon/ui/AbstractFileChooser.java b/src/com/annimon/ui/AbstractFileChooser.java
index 38bd0db..29740f1 100644
--- a/src/com/annimon/ui/AbstractFileChooser.java
+++ b/src/com/annimon/ui/AbstractFileChooser.java
@@ -9,7 +9,6 @@ import javax.swing.JButton;
 import javax.swing.JDialog;
 import javax.swing.JFileChooser;
 import javax.swing.JPanel;
-import static javax.swing.WindowConstants.DISPOSE_ON_CLOSE;
 
 /**
  *
diff --git a/src/tse/lr3/LR_3_Tasks.java b/src/tse/lr3/LR_3_Tasks.java
index 96739b5..5ccb3fe 100644
--- a/src/tse/lr3/LR_3_Tasks.java
+++ b/src/tse/lr3/LR_3_Tasks.java
@@ -1,13 +1,13 @@
 package tse.lr3;
 
+import com.annimon.io.CsvReader;
 import tse.lr2.*;
 import java.awt.Point;
-import java.io.BufferedReader;
 import java.io.BufferedWriter;
+import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
 import java.io.IOException;
-import java.io.InputStreamReader;
 import java.io.ObjectInputStream;
 import java.io.ObjectOutputStream;
 import java.io.OutputStreamWriter;
@@ -151,31 +151,25 @@ public class LR_3_Tasks {
     }
     
     private List<Ellipse> readFromCSV(String filename) throws IOException {
-        List<Ellipse> list = new ArrayList<>();
-        BufferedReader reader = new BufferedReader(
-                new InputStreamReader( new FileInputStream(filename), "UTF-8" )
-        );
-        reader.readLine(); // Класс,X1,Y1,X2,Y2,X3,Y3,X4,Y4
-        String line;
-        while ( (line = reader.readLine()) != null ) {
-            Ellipse ellipse = null;
-            try {
-                ellipse = readFromCsvLine(line);
-            } catch (RuntimeException ex) {
-                System.out.println(ex.toString());
+        CsvReader<Ellipse> csvReader = new CsvReader<>(new File(filename));
+        csvReader.setReaderHandler(new CsvReader.ReaderHandler<Ellipse>() {
+
+            @Override
+            public void onStartRead(File file) { }
+
+            @Override
+            public Ellipse createObject(String[] params) {
+                return readFromCsvLine(params);
             }
-            if (ellipse != null) list.add(ellipse);
-        }
-        reader.close();
-        return list;
+
+            @Override
+            public void onFinishRead(File file) { }
+        });
+        return csvReader.readCsvToList(true);
     }
     
-    private Ellipse readFromCsvLine(String line) {
+    private Ellipse readFromCsvLine(String[] params) {
         final int POINTS_COUNT = 4;
-        if (line.isEmpty()) throw new RuntimeException("Пустая строка");
-        String[] params = line.split(",");
-        if (params.length < 9) throw new RuntimeException("Неверное количество параметров");
-        
         final int[] coords = new int[POINTS_COUNT * 2];
         for (int i = 0; i < coords.length; i++) {
             coords[i] = Integer.parseInt(params[i + 1]);
diff --git a/src/tse/lr4/NotePad.java b/src/tse/lr4/NotePad.java
index 9034194..f14bbe9 100644
--- a/src/tse/lr4/NotePad.java
+++ b/src/tse/lr4/NotePad.java
@@ -60,14 +60,17 @@ public class NotePad {
         return getName() + ". " + getDescription();
     }
     
-    public static NotePad readFromCsvLine(String line) throws ParseException {
-        if (line.isEmpty()) throw new RuntimeException("Пустая строка");
-        String[] params = line.split("\t");
+    public static NotePad readFromCsvLine(String[] params) {
         if (params.length != 4) throw new RuntimeException("Неверное количество параметров");
 
         String name = params[0];
         String description = params[1];
-        Date data = new SimpleDateFormat(DATE_PATTERN).parse(params[2]);
+        Date data;
+        try {
+            data = new SimpleDateFormat(DATE_PATTERN).parse(params[2]);
+        } catch (ParseException ex) {
+            data = new Date(System.currentTimeMillis());
+        }
         boolean important = Boolean.parseBoolean(params[3]);
         
         return new NotePad(name, description, data, important);
diff --git a/src/tse/lr4/NotePadManager.java b/src/tse/lr4/NotePadManager.java
index a295ed3..e121a99 100644
--- a/src/tse/lr4/NotePadManager.java
+++ b/src/tse/lr4/NotePadManager.java
@@ -1,13 +1,11 @@
 package tse.lr4;
 
-import java.io.BufferedReader;
+import com.annimon.io.CsvReader;
 import java.io.BufferedWriter;
-import java.io.FileInputStream;
+import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
-import java.io.InputStreamReader;
 import java.io.OutputStreamWriter;
-import java.text.ParseException;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
@@ -30,14 +28,14 @@ public class NotePadManager {
         return instance;
     }
 
-    private ArrayList<NotePad> notepads;
+    private List<NotePad> notepads;
     
     public NotePadManager() {
-        notepads = (ArrayList<NotePad>) readFromCSV(FILENAME);
+        notepads = readFromCSV(FILENAME);
         if (notepads == null) notepads = new ArrayList<>();
     }
     
-    public ArrayList<NotePad> getNotepads() {
+    public List<NotePad> getNotepads() {
         return notepads;
     }
     
@@ -67,7 +65,7 @@ public class NotePadManager {
         createNewEntry(name, desc, date, important);
     }
     
-    private void saveToCSV(String filename, ArrayList<NotePad> list) {
+    private void saveToCSV(String filename, List<NotePad> list) {
         try {
             BufferedWriter writer = new BufferedWriter(
                     new OutputStreamWriter(new FileOutputStream(filename), "UTF-8")
@@ -84,25 +82,23 @@ public class NotePadManager {
         }
     }
     
-    private Object readFromCSV(String filename) {
-        try {
-            List<NotePad> list = new ArrayList<>();
-            BufferedReader reader = new BufferedReader(
-                new InputStreamReader( new FileInputStream(filename), "UTF-8" )
-            );
-            reader.readLine(); // Имя,Описание,Дата,Важное
-            String line;
-            while ( (line = reader.readLine()) != null ) {
-                NotePad pad = null;
-                try {
-                    pad = NotePad.readFromCsvLine(line);
-                } catch (RuntimeException | ParseException ex) {
-                    System.out.println(ex.toString());
-                }
-                if (pad != null) list.add(pad);
+    private List<NotePad> readFromCSV(String filename) {
+        CsvReader<NotePad> csvReader = new CsvReader<>(new File(filename));
+        csvReader.setReaderHandler(new CsvReader.ReaderHandler<NotePad>() {
+
+            @Override
+            public void onStartRead(File file) { }
+
+            @Override
+            public NotePad createObject(String[] params) {
+                return NotePad.readFromCsvLine(params);
             }
-            reader.close();
-            return list;
+
+            @Override
+            public void onFinishRead(File file) { }
+        });
+        try {
+            return csvReader.readCsvToList();
         } catch (IOException ex) {
             Util.handleException(ex);
         }
diff --git a/src/tse/lr4/PadPanel.java b/src/tse/lr4/PadPanel.java
index 63a1f94..12d5644 100644
--- a/src/tse/lr4/PadPanel.java
+++ b/src/tse/lr4/PadPanel.java
@@ -3,9 +3,9 @@ package tse.lr4;
 import java.awt.Font;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
-import java.util.ArrayList;
 import java.util.Calendar;
 import java.util.Date;
+import java.util.List;
 import javax.swing.GroupLayout;
 import javax.swing.JButton;
 import javax.swing.JCheckBox;
@@ -199,7 +199,7 @@ public class PadPanel extends JPanel {
         return NotePadManager.getInstance().getNotepads().get(padIndex);
     }
     
-    private ArrayList<NotePad> getNotepads() {
+    private List<NotePad> getNotepads() {
         return NotePadManager.getInstance().getNotepads();
     }
 
diff --git a/src/tse/lr5/TrianglesWindow.java b/src/tse/lr5/TrianglesWindow.java
index 8f10cca..e44734c 100644
--- a/src/tse/lr5/TrianglesWindow.java
+++ b/src/tse/lr5/TrianglesWindow.java
@@ -1,5 +1,6 @@
 package tse.lr5;
 
+import com.annimon.io.CsvReader;
 import java.awt.Color;
 import java.awt.Point;
 import java.io.File;