Programming Languages

Hi Esha,
To learn ethical hacking, you need be strong in the following subjects :
1.Computer Networks
2.Cryptography
3.Shell Programming
4.Web Programming (Basics)
All the best

Hi parul,
Java is not a good language for ethical hacking because it works at the abstraction level, several layers above the hardware level
All the best

Hi Esha,
It totally depends on your interest that in which domain, you want to gain expertise because java is a programming language and CCNA-CCNP are the certification programs in networking
All the best

Hi Parul,
You can prepare questions on the topics mentioned below :
Overloading and Overriding
File IO and Serialization
OOPs Concepts
Abstract Classes and Interfaces
Constructors
Collections - List , Map , Set - Search, Sorting Algorithms
Access Specifiers
Exceptions - Checked , Unchecked
Generics
Java Keywords - static , final , volatile, synchronized , transient, this , super etc.
JVM and Memory Management
All the best

Hi Gunjan,
This(), is used within a constructor to call another constructor in the same class and it is called Explicit Constructor Invocation.
All the best

Hi Gunjan,
Both the languages are good and have there pros and cons. It is not fair to compare both the languages
All the best

Hi Tom,
Listed below are some of the weaknesses of python:
Performance is the main issue. When it comes down to optimized code with demands of high speed, Python is not an efficient solution.
No compile-time type-checks :You cannot know if you've created a type error until it happens in run time.
All the best

Hi Tom,
Python is one of the most widely adopted general-purpose modern scripting-languages. (Javascript is used more by pure volume, but is fairly rare for anything other than webpages) It seems a pretty safe bet that Python is here to stay over the next decade.
All the best

Hi Tom,
Both are good, what i will suggest is learn how they inter-operate together. Start with one and then add the other to your workflow.
All the best

Hi Tom,
Mentioned below are some of the advantages of python over ruby:
1. Easier to read
2. Tons of libraries
3. Community
4. Practicality - popular for many uses besides web development
All the best