Advantages of Java

[Face]

Again from my notes...

Advantages of Java
• Java is easy to learn.– Java was designed to be easy to use and is therefore easy to write, compile,
debug, and learn than other programming languages.
• Java is object-oriented.– This allows you to create modular programs and reusable code.
• Java is platform-independent.– One of the most significant advantages of Java is its ability to move easily from
one computer system to another. The ability to run the same program on many
different systems is crucial to World Wide Web software, and Java succeeds at
this by being platform-independent at both the source and binary levels.
• Java is secure– Prevents hackers from writing programs that play havoc on the browser of users’
systems.
• Java is compact– Make programs faster to download off a page

Please tell me about these words..
1).Debug
2).Object-oriented means what?
3).Havoc means..?

I am asking help from you because I am a self studding student.I have exam in August. don't go to any institute to study.I use only my notes.That's why I always ask your help.

[Neo]

1).Debug

When you write a code in any language like C, Java, VB, etc... you will have to compile the source to a machine understandable format. This code (usually known as machine code) has no direct relationship with your source code.
But in most cases, you will have to find bugs in the system by running the machine code with a relationship to source code so you can easily find the problem by jumping to each line in source code step by step, viewing variables/registers, etc...
This is supported by most of the languages available today.

2).Object-oriented means what?

This is not possible to explain is a short way. But I'll brief the idea.
It is a programming technique which is commonly used today. In simple terms, it is about viewing the problem as we see things natural.

You will have to learn the concepts very carefully.
Read Lesson: Object-Oriented Programming Concepts.

3).Havoc means..?

Wide and general destruction to users (like taking credit card numbers, etc...)

[Face]

thank you NEO bro..

havoc is so dangerous ha?I s it a hacking system?

thank you for the link.But honestly I couldn't study that page you gave me about object oriented.Because I am really busy with JOB & studies.For my exam I am doing some targeting studies.Not long lessons.Study in brief.Any how I am asking question in those targeting area.

thank you again for your help.