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Can we use the constructor, instead of init(), to initialize servlet?
Ans) Yes. Of course you can use the constructor instead of init(). There's nothing to stop you. But you shouldn't. The main reason for init() was that ancient versions of Java couldn't dynamically invoke constructors with arguments, so there was no way to give the constructor a ServletConfig. That no longer applies, but servlet containers still will only call your no-arg constructor. So you won't have access to a ServletConfig or ServletContext.
What does it mean that a method or class is abstract? An abstract class cannot be instantiated. Abstract methods may only be included in abstract classes. However, an abstract
Explain about the Static classes A class can have static variables and methods. Static methods and variables are associated with class itself an
The confidentiality and privacy may be accomplished through encryption. Encryption may be: Private-key or symmetric: This is based on a single key. This needs the sender and the
Need the following code in double var instead of integer. import javax.swing.*; public class arrayVar { public static void main (String[] args) //This is our main method prompt
Why hub is used in networks? HUB: Hub is networking component that can be used to connect the networks and it could also be used to extend the size of networks. In a simple way
what is java
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Describe Logical Operators in Java ? The relational operators you've learned so far ( , >=, !=, ==) are enough while you only required to check one condition. Therefore what if
Need to develop a Small Android App using Text to speech and Speech to Text feature. Project Description: When the Android App Opens, It will connect to Windows Azure cloud,
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