Related pages: Advanced knowledge of Java serialization http://www.360doc.com/content/13/0728/18/13247663_303173972.shtml the following programs are from "http://bbs.csdn.net/ topics/390155251 "(Verified) class Student1package Test; import Java.io.serializable; public class Student1 Implements serializable{ private static final long Serialversionuid = 1l; private St Ring name; private transient String password; private static int count = 0; &N Bsp public Student1 (String name,string password) { SYSTEM.OUT.PRINTLN (" Call Student with parameter construction method "); this.name = name; This.password = password; count++; &NB Sp } public String toString () { Return "Number of people:" + Count + "Name:" + Name + "Password:" + password; }} class Objectsertest1 package Test; import Java.io.FileInputStream ; Import Java.io.fileoutputstream;import Java.io.ioexception;import Java.io.objectinputstream;import Java.io.objectoutputstream; public class ObjectSerTest1 { public static void Main (String args[]) { try{ FileOutputStream fos = new FileOutputStream ("TEST.O BJ "); ObjectOutputStream oos = new ObjectOutputStream (FOS); Student1 S1 = NE W Student1 ("Zhang San", "123456"); Student1 s2 = new Student1 ("Harry", ""); Oos.write Object (S1); oos.writeobject (S2); oos.close (); & nbsp FileInputStream fis = new FileInputStream ("Test.obj"); ObjectInputStream ois = new ObjectInputStream (FIS); nbsp Student1 s3 = (Student1) ois.readobject (); student1 s4 = (Student1) Ois.readobject ();  SYSTEM.OUT.PRINTLN (S3); &NBSP System.out.println (S4); ois.close (); & nbsp } catch (IOException e) { e.printstacktrace (); &N Bsp &NBSP,} catch (ClassNotFoundException E1) { e1.printstacktrace (); &N Bsp } }} Run Result: Call Student with parameter construction method Call student with parameter construction method People: 2 Name: Zhang San password: null number: 2 Name: Harry Password:null class Test1package Test; import Java.io.fileinputstream;import Java.io.fileoutputstream;import Java.io.ioexception;import Java.io.objectinputstream;import Java.io.objectoutputstream; public class test1{ public static void Main (String args[]) { & nbsp Try { FileInputStream FIS = New FileInputStream ("Test.obj"); objEctinputstream ois = new ObjectInputStream (FIS); Student1 s3 = (Student1) o Is.readobject (); Student1 s4 = (Student1) ois.readobject (); &N Bsp SYSTEM.OUT.PRINTLN (S3); SYSTEM.OUT.PRINTLN (S4); ois.close (); } catch (IOException e) { & nbsp E.printstacktrace (); } catch (ClassNotFoundException E1) { &N Bsp E1.printstacktrace (); } } Run Result: 0 Name: Zhang San Password: null number: 0 Name: Harry Password:null The running results of class ObjectSerTest1 display count=2, which appears to be serialized, but the run result of class Test1 shows that count=0 is not serialized. "Serialization saves the state of the object, the number of static variables in the state of the class, so serialization does not save static variables." The non-serializable meaning here is that the serialization information does not contain this static member domain ObjectSerTest1 test succeeds because it is all on the same machine (and the same process) because the JVM has loaded count in, so you get the loaded count, If you are uploading to another machine or you turn off the program rewrite to write a program to read the Test.obj, the count information is the initial information because the other machine or the new process is reloading count. "-----from the reference pageoverriding class Test1 reads the result of Test.obj display as the initial information of count, and also validates the above paragraph. Finally, the static,transient decorated properties of the Java object cannot be serialized.
static, transient-modified properties in Java cannot be serialized
