Answer Posted / javamasque

We have to fallow below steps to serialize an object
1. The object to be serialized need to implement java.io.Serializable / java.io. Externalizable interface.
2. Generate serial version id for that serializable object.
3. ObjectOutputStream is used to write [writeObject(..) or wirteExternal()] object.
4. FileOutputStream is used to persist in flat file.
5. The flat file extension should be (<file-name>.ser)

Explain about java sdk?

1045

---

what is inner class in java?

1140

---

What is a treemap in java?

1018

---

Explain the features of interfaces in java?

987

---

What is the difference between stored procedure & function?

979

---

What methodology can be utilized to link to a database?

972

---

What data type is string java?

970

---

What is the difference between jvm and jre? What is an interface?

1101

---

How is java hashmap implemented?

1036

---

What is the default value of the local variables?

1021

---

What is the purpose of default constructor?

1005

---

Is there any way to find whether software installed in the system is registered by just providing the .exe file? I have tried the following code but its just displaying the directory structure in the registry. Here the code : package com.msi.intaller; import java.util.Iterator; import ca.beq.util.win32.registry.RegistryKey; import ca.beq.util.win32.registry.RootKey; public class RegistryFinder { public static void main(String... args) throws Exception { RegistryKey.initialize(RegistryFinder.class.getResource("jRe gistryKey.dll").getFile()); RegistryKey key = new RegistryKey(RootKey.HKLM, "Software\\ODBC"); for (Iterator subkeys = key.subkeys(); subkeys.hasNext();) { RegistryKey subkey = subkeys.next(); System.out.println(subkey.getName()); // You need to check here if there's anything which matches "Mozilla FireFox". } } }

1805

---

Which sorting is best in java?

1007

---

What happens if constructor is private?

1040

---

What is widening and narrowing in java? Discuss with an example.

1049

---