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Introducing : Java (Study Notes)

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Introducing : Java (Study Notes)

So, What’s Java?

Java is another programming language. It was released by Sun Microsystems in 1995, and is currently still one of the widely used programming languages. It is known for being “Simple, portable, secure, and robust.”

How’s it better than other languages?

Every language has its own quirk. Java had a slogan, which was “Write once, run everywhere”. It can run on many devices with the same code! This is why we use it for android development.

HELLO WORLD!

Starting with the first thing every programmer learns, how to print hello world! This code is a bit more complex than, say python, but it will be explained later on in the course. Right now, we just need to know that this is how we print statement :

System.out.println("Hello World!");
 

Is the code for printing out a text to the screen. Look carefully at this and try to analyze the syntax and you will understand a bit more about Java.

Java Files

Like python has .py files, and Javascript has .js files, java files end in .java

 

Do you want to learn Java like this, as well as have the privilege to learn from a professional? Sign up for our course 这里!

 
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