Click here to watch in Youtube :
https://www.youtube.com/watch?v=Ww7W_VLVgHQ&list=UUhwKlOVR041tngjerWxVccw
Click the below Image to Enlarge
Java Tutorial : Java IO (Java Serialization with IS A Inheritance) |
import java.io.Serializable; /* * If a class implements serializable then all its sub * classes will also be serializable. */ public class Person implements Serializable { private static final long serialVersionUID = -7438582605700356851L; protected String name; protected int age; public Person(String name, int age) { super(); this.name = name; this.age = age; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } }
/* * We can serialize the Employee class object that * extends the Person class which is Serializable.Parent * class properties are inherited to subclasses so if * parent class is Serializable, subclass would also be. */ public class Employee extends Person { private static final long serialVersionUID = 312396230370712755L; private int salary; public Employee(String name, int age, int salary) { super(name, age); this.salary = salary; } public int getSalary() { return salary; } public void setSalary(int salary) { this.salary = salary; } }
import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.ObjectOutputStream; public class SerializationDemo { public static void main(String[] args) throws FileNotFoundException, IOException, ClassNotFoundException { SerializationDemo serializationDemo = new SerializationDemo(); serializationDemo.writeEmployeeObject(); } private void writeEmployeeObject() throws FileNotFoundException, IOException { FileOutputStream fileOutputStream = null; ObjectOutputStream objectOutputStream = null; try { fileOutputStream = new FileOutputStream("employee.tmp"); objectOutputStream = new ObjectOutputStream(fileOutputStream); Employee employee = new Employee("Peter", 29, 80000); /* * Write the specified object to the * ObjectOutputStream. */ objectOutputStream.writeObject(employee); System.out .println("Successfully written employee object to the file.\n"); } finally { if (objectOutputStream != null) { /* * Closing a ObjectOutputStream will also * close the OutputStream instance to which * the ObjectOutputStream is writing. */ objectOutputStream.close(); } } } }
Successfully written employee object to the file.employee.tmp
DeSerializationDemo.java
import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.io.ObjectInputStream; public class DeSerializationDemo { public static void main(String[] args) throws FileNotFoundException, IOException, ClassNotFoundException { DeSerializationDemo deSerializationDemo = new DeSerializationDemo(); deSerializationDemo.readEmployeeObject(); } private void readEmployeeObject() throws IOException, FileNotFoundException, ClassNotFoundException { FileInputStream fileInputStream = null; ObjectInputStream objectInputStream = null; try { fileInputStream = new FileInputStream("employee.tmp"); objectInputStream = new ObjectInputStream(fileInputStream); /* * Read an object from the ObjectInputStream. */ Employee employee = (Employee) objectInputStream.readObject(); System.out .println("Successfully read employee object from the file."); System.out.println("Name = " + employee.getName()); System.out.println("Age = " + employee.getAge()); System.out.println("Salary = " + employee.getSalary()); } finally { if (objectInputStream != null) { /* * Closing a ObjectInputStream will also * close the InputStream instance from which * the ObjectInputStream is reading. */ objectInputStream.close(); } } } }
Successfully read employee object from the file. Name = Peter Age = 29 Salary = 80000
https://sites.google.com/site/ramj2eev1/home/javabasics/JavaIODemo_Serialization_IS_A_Relationship_App.zip?attredirects=0&d=1
Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/JavaIODemo_Serialization_IS_A_Relationship_App
Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/9ef303db3f229fc70e7cf47baac5692282611e62/BasicJava/JavaIODemo_Serialization_IS_A_Relationship_App/?at=master
See also:
No comments:
Post a Comment