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Java Tutorial : Java IO (Java ObjectOutputStream | Java Serialization) |
Java Tutorial : Java IO (Java ObjectOutputStream | Java Serialization) |
Java Tutorial : Java IO (Java ObjectOutputStream | Java Serialization) |
Java Tutorial : Java IO (Java ObjectOutputStream | Java Serialization) |
Java Tutorial : Java IO (Java ObjectOutputStream | Java Serialization) |
import java.io.Serializable; /* * Before you can serialize and de-serialize objects the * class of the object must implement java.io.Serializable. */ public class Employee implements Serializable { private static final long serialVersionUID = 3558283530338723147L; private String name; private int id; public Employee(String name, int id) { super(); this.name = name; this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getId() { return id; } public void setId(int id) { this.id = id; } @Override public String toString() { return "Employee [name=" + name + ", id=" + id + "]"; } }ObjectOutputStreamDemo.java
import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.ObjectOutputStream; public class ObjectOutputStreamDemo { public static void main(String[] args) throws FileNotFoundException, IOException, ClassNotFoundException { ObjectOutputStreamDemo objectOutputStreamDemo = new ObjectOutputStreamDemo(); objectOutputStreamDemo.writeEmployeeObject(); } private void writeEmployeeObject() throws FileNotFoundException, IOException { FileOutputStream fileOutputStream = null; ObjectOutputStream objectOutputStream = null; try { fileOutputStream = new FileOutputStream("employee.txt"); objectOutputStream = new ObjectOutputStream(fileOutputStream); Employee employee = new Employee("Peter",20); System.out.println(employee); /* * 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(); } } } }Output
Employee [name=Peter, id=20] Successfully written employee object to the file.employee.txt
import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.io.ObjectInputStream; public class ObjectInputStreamDemo { public static void main(String[] args) throws FileNotFoundException, IOException, ClassNotFoundException { ObjectInputStreamDemo objectInputStreamDemo = new ObjectInputStreamDemo(); objectInputStreamDemo.readEmployeeObject(); } private void readEmployeeObject() throws IOException, FileNotFoundException, ClassNotFoundException { FileInputStream fileInputStream = null; ObjectInputStream objectInputStream = null; try { fileInputStream = new FileInputStream("employee.txt"); 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(employee); System.out.println("Name = " + employee.getName()); System.out.println("Id = " + employee.getId()); } finally { if (objectInputStream != null) { /* * Closing a ObjectInputStream will also * close the InputStream instance from which * the ObjectInputStream is reading. */ objectInputStream.close(); } } } }Output
Successfully read employee object from the file. Employee [name=Peter, id=20] Name = Peter Id = 20
Refer:
https://sites.google.com/site/ramj2eev1/home/javabasics/JavaIODemo_ObjectOutputStream_App.zip?attredirects=0&d=1
Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/JavaIODemo_ObjectOutputStream_App
Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/77a722c38e027b0dc283350527400c69b6e8d643/BasicJava/JavaIODemo_ObjectOutputStream_App/?at=master
See also:
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