There are many good reasons why you should disable java script in your browsers. Estimates aren’t too accurate but somewhere around 5 to 7 percent of internet users have disabled java script. That means 1 out of every 20 visitors might not be able to see your website. So it is important to ensure that your website work properly with or without java script.
There are many other internet techniques which can accomplish most of what you would probably use java script to do:
1. Image rollovers: this can be accomplished by CSS by using the ‘hover’ state to shift the position of an element or show a new element.
3. Animation: for animation there are two alternatives, 1) create an animated gif image 2) use flash. Both the alternatives have their drawbacks. In case of animated gif image, you have restriction of size of file and in the case of flash you will encounter with the same problems you encounter with scripts.
4. Redirection and form validation: when you use script, it proceeds on client side which is why users re able to modify the behavior of web page when they turn it off. You can opt to do all the processing on server side by using any programming language. By choosing the server side processing, users will always be subject to some restrictions.
These are the few alternatives of it and in case if script elements are crucial to your website then you should mention that users should turn on java to take advantage of those features.
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Learning a complex new language is no easy task especially when it s an object-oriented computer programming language like Java. You might think the problem is your brain. It seems to have a mind of its own, a mind that doesn't always want to take in the dry, technical stuff you're forced to study.
The fact is your brain craves novelty. It's constantly searching, scanning, waiting for something unusual to happen. After all, that's the way it was built to help you stay alive. It takes all the routine, ordinary, dull stuff and filters it to the background so it won't interfere with your brain's real work--recording things that matter. How does your brain know what matters? It's like the creators of the Head First approach say, suppose you're out for a hike and a tiger jumps in front of you, what happens in your brain? Neurons fire. Emotions crank up. Chemicals surge. That's how your brain knows.
And that's how your brain will learn Java. Head First Java combines puzzles, strong visuals, mysteries, and soul-searching interviews with famous Java objects to engage you in many different ways. It's fast, it's fun, and it's effective. And, despite its playful appearance, Head First Java is serious stuff: a complete introduction to object-oriented programming and Java. You'll learn everything from the fundamentals to advanced topics, including threads, network sockets, and distributed programming with RMI. And the new. second edition focuses on Java 5.0, the latest version of the Java language and development platform. Because Java 5.0 is a major update to the platform, with deep, code-level changes, even more careful study and implementation is required. So learning the Head First way is more important than ever.
If you've read a Head First book, you know what to expect--a visually rich format designed for the way your brain works. If you haven't, you're in for a treat. You'll see why people say it's unlike any other Java book you've ever read.
By exploiting how your brain works, Head First Java compresses the time it takes to learn and retain--complex information. Its unique approach not only shows you what you need to know about Java syntax, it teaches you to think like a Java programmer. If you want to be bored, buy some other book. But if you want to understand Java, this book's for you.
- Head First Java