diff --git a/ApplianceModels.json b/ApplianceModels.json
new file mode 100644
index 0000000..319ecb0
--- /dev/null
+++ b/ApplianceModels.json
@@ -0,0 +1,56 @@
+{
+  "version": "1.0",
+  "models": [
+    {
+      "model": "Sony AF9",
+      "type": "TV",
+      "functions": [
+        {
+          "function": "DOWN",
+          "code": 1002
+        }, {
+          "function": "LEFT",
+          "code": 1003
+        }, {
+          "function": "RIGHT",
+          "code": 1004
+        }, {
+          "function": "DOWN",
+          "code": 1005
+        }, {
+          "function": "SELECT",
+          "code": 1006
+        }
+      ]
+    }
+  , {
+      "model": "UBP-X800",
+      "type": "Blu-ray & DVD player",
+      "functions": [
+        {
+          "function": "MAIN MENU",
+          "code": 2002
+        }, {
+          "function": "SPEED +",
+          "code": 2003
+        }, {
+          "function": "SPEED -",
+          "code": 2004
+        }, {
+          "function": "NEXT",
+          "code": 2005
+        }, {
+          "function": "PLAY",
+          "code": 2006
+        }, {
+          "function": "STOP",
+          "code": 2007
+        }, {
+          "function": "SELECT",
+          "code": 2008
+        }
+      ]
+    }
+    ]
+}
+
diff --git a/src/main/java/ApplianceModelsDefinition.java b/src/main/java/ApplianceModelsDefinition.java
new file mode 100644
index 0000000..e885923
--- /dev/null
+++ b/src/main/java/ApplianceModelsDefinition.java
@@ -0,0 +1,122 @@
+import com.fasterxml.jackson.core.JsonParseException;
+import com.fasterxml.jackson.databind.JsonMappingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.util.List;
+
+public class ApplianceModelsDefinition {
+    private String version;
+    private List<Model> models;
+    private ObjectMapper objectMapper;
+
+    ApplianceModelsDefinition(){
+        this.objectMapper = new ObjectMapper();
+    }
+
+    public String getVersion() {
+        return version;
+    }
+
+    public void setVersion(String version) {
+        this.version = version;
+    }
+
+    public List<Model> getModels() {
+        return models;
+    }
+
+    public void setModels(List<Model> models) {
+        this.models = models;
+    }
+
+    public boolean importFromJSON(){
+        try {
+            ApplianceModelsDefinition applianceModelsDefinition;
+            applianceModelsDefinition= objectMapper.readValue(new FileInputStream("ApplianceModels.json"), ApplianceModelsDefinition.class);
+            this.version = applianceModelsDefinition.getVersion();
+            this.models = applianceModelsDefinition.getModels();
+            return true;
+        } catch (JsonMappingException e) {
+            throw new RuntimeException(e);
+        } catch (FileNotFoundException e) {
+            throw new RuntimeException(e);
+        } catch (JsonParseException e) {
+            throw new RuntimeException(e);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+}
+
+class Model {
+    private String model;
+    private String type;
+    private List<Function> functions;
+
+    Model(String name, String type){
+        this.model = name;
+        this.type = type;
+    }
+    Model(String name){
+        this.model = name;
+    }
+    Model(){
+
+    }
+
+    public String getModel() {
+        return model;
+    }
+
+    public void setModel(String model) {
+        this.model = model;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public void setType(String type) {
+        this.type = type;
+    }
+
+    public List<Function> getFunctions() {
+        return functions;
+    }
+
+    public void setFunctions(List<Function> functions) {
+        this.functions = functions;
+    }
+}
+
+class Function {
+    private String function;
+    private int code;
+
+    Function(String function, int code){
+        this.function = function;
+        this.code = code;
+    }
+    Function(){
+
+    }
+
+    public String getFunction() {
+        return function;
+    }
+
+    public void setFunction(String function) {
+        this.function = function;
+    }
+
+    public int getCode() {
+        return code;
+    }
+
+    public void setCode(int code) {
+        this.code = code;
+    }
+}
diff --git a/src/main/java/Appliances.java b/src/main/java/Appliances.java
new file mode 100644
index 0000000..56f906a
--- /dev/null
+++ b/src/main/java/Appliances.java
@@ -0,0 +1,32 @@
+import java.util.ArrayList;
+import java.util.List;
+
+public class Appliances {
+    private String name; // Name of appliance.
+    private List<Button> buttons; // List of buttons.
+
+    Appliances(String name) {
+        this.name = name;
+        this.buttons = new ArrayList<Button>();
+    }
+
+    public void addButton(Button button) {
+        buttons.add(button);
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public List<Button> getButtons() {
+        return buttons;
+    }
+
+    public void setButtons(List<Button> buttons) {
+        this.buttons = buttons;
+    }
+}
diff --git a/src/main/java/Button.java b/src/main/java/Button.java
new file mode 100644
index 0000000..b58a625
--- /dev/null
+++ b/src/main/java/Button.java
@@ -0,0 +1,31 @@
+public class Button {
+    private String text; // Text of button.
+    private int irCode; // IR code of button.
+
+    /**
+     * Constructor. Initializes text and IR code.
+     * @param text Text of button.
+     * @param irCode IR code of button.
+     */
+    public Button(String text, int irCode) {
+        this.text = text;
+        this.irCode = irCode;
+        System.out.println("New button: " + text + " " + irCode);
+    }
+
+    public String getText() {
+        return text;
+    }
+
+    public void setText(String text) {
+        this.text = text;
+    }
+
+    public int getIrCode() {
+        return irCode;
+    }
+
+    public void setIrCode(int irCode) {
+        this.irCode = irCode;
+    }
+}
diff --git a/src/main/java/RCU.java b/src/main/java/RCU.java
new file mode 100644
index 0000000..773704c
--- /dev/null
+++ b/src/main/java/RCU.java
@@ -0,0 +1,58 @@
+import com.fasterxml.jackson.core.JsonGenerationException;
+import com.fasterxml.jackson.databind.JsonMappingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
+
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+public class RCU {
+    private String name;
+    private List<Appliances> appliances; // List of appliances.
+    private ObjectMapper objectMapper;
+
+    public RCU(String name) {
+        this.name = name;
+        this.appliances = new ArrayList<Appliances>();
+        this.objectMapper = new ObjectMapper();
+    }
+
+    public void addAppliance(Appliances appliance) {
+        appliances.add(appliance);
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public List<Appliances> getAppliances() {
+        return appliances;
+    }
+
+    public void setAppliances(List<Appliances> appliances) {
+        this.appliances = appliances;
+    }
+
+    public boolean exportToJSON(){
+        objectMapper.enable(SerializationFeature.INDENT_OUTPUT); // Enable JSON pretty printing.
+        try {
+            objectMapper.writeValue(new FileOutputStream("rcu.json"), this);
+            return true;
+        } catch (JsonMappingException e) {
+            throw new RuntimeException(e);
+        } catch (FileNotFoundException e) {
+            throw new RuntimeException(e);
+        } catch (JsonGenerationException e) {
+            throw new RuntimeException(e);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+}
diff --git a/src/main/java/Task2.java b/src/main/java/Task2.java
new file mode 100644
index 0000000..716664a
--- /dev/null
+++ b/src/main/java/Task2.java
@@ -0,0 +1,25 @@
+public class Task2 {
+    public static void main(String[] args) {
+        /* Test export
+        RCU rcu = new RCU("My remote control");
+        Appliances tv = new Appliances("TV");
+        tv.addButton(new Button("DOWN", 1002));
+        rcu.addAppliance(tv);
+        rcu.exportToJSON();
+         */
+
+        RCU rcu = new RCU("My remote control");
+        ApplianceModelsDefinition amd = new ApplianceModelsDefinition();
+        amd.importFromJSON();
+        for(Model model : amd.getModels()){
+            Appliances appliance = new Appliances(model.getType());
+            for(Function function : model.getFunctions()){
+                appliance.addButton(new Button(function.getFunction(), function.getCode()));
+            }
+            rcu.addAppliance(appliance);
+        }
+        rcu.exportToJSON();
+        System.out.println("Finish");
+
+    }
+}