Created Java implementation of Serialization

Java/BasicSerializationExample.java

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+/**
+ * Created by Руслан on 30.05.2017.
+ */
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.util.Date;
+
+
+public class BasicSerializationExample {
+    static final String file = "user.txt";
+
+    static void serialize(User user) {
+        try {
+            FileOutputStream fos = new FileOutputStream(file);
+            ObjectOutputStream outputStream = new ObjectOutputStream(fos);
+            outputStream.writeObject(user);
+            outputStream.close();
+        } catch (IOException ex) {
+            System.err.println(ex);
+        }
+    }
+
+    static User deserialize() {
+        User savedUser = null;
+
+        try {
+            FileInputStream fis = new FileInputStream(file);
+            ObjectInputStream inputStream = new ObjectInputStream(fis);
+            savedUser = (User) inputStream.readObject();
+            inputStream.close();
+        } catch (IOException | ClassNotFoundException ex) {
+            System.err.println(ex);
+        }
+
+        return savedUser;
+    }
+
+    public static void main(String[] args) {
+        String username = "ruslan";
+        String email = "[email protected]";
+        String password = "pass";
+        Date birthDay = new Date();
+        int age = 30;
+
+        User newUser = new User(username, email, password, birthDay, age);
+
+        serialize(newUser);
+
+        User deseriaUser = deserialize();
+
+        if (deseriaUser != null) {
+            deseriaUser.printInfo();
+        }
+    }
+}

Java/User.java

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+/**
+ * Created by Руслан on 30.05.2017.
+ */
+import java.io.Serializable;
+import java.util.Date;
+
+public class User implements Serializable {
+
+
+    private String username;
+    private String email;
+    private String password;
+    private Date birthday;
+    private int age;
+
+    public User(String username, String email, String password, Date birthday,
+                int age) {
+        this.username = username;
+        this.email = email;
+        this.password = password;
+        this.birthday = birthday;
+        this.age = age;
+    }
+
+    public void printInfo() {
+        System.out.println("username: " + username);
+        System.out.println("email: " + email);
+        System.out.println("password: " + password);
+        System.out.println("birthday: " + birthday);
+        System.out.println("age: " + age);
+    }
+
+    // getters and setters
+
+}