Java Intro
Welcome to the Java Intro chapter of the Java tutorial. This section covers fundamental concepts necessary for mastering Java programming.
Example: Java Intro
Below is a standard example demonstrating how Java Intro works in Java:
public class Main {
public static void main(String[] args) {
// This is a demo for Java Intro
System.out.println("Learning Java Intro...");
}
}Make sure to practice this example in the editor to fully understand the syntax.
Java Get Started
Welcome to the Java Get Started chapter of the Java tutorial. This section covers fundamental concepts necessary for mastering Java programming.
Example: Java Intro
Below is a standard example demonstrating how Java Intro works in Java:
public class Main {
public static void main(String[] args) {
// This is a demo for Java Intro
System.out.println("Learning Java Intro...");
}
}Make sure to practice this example in the editor to fully understand the syntax.
Java Syntax
Welcome to the Java Syntax chapter of the Java tutorial. This section covers fundamental concepts necessary for mastering Java programming.
Example: Java Syntax
Below is a standard example demonstrating how Java Syntax works in Java:
public class Main {
public static void main(String[] args) {
// This is a demo for Java Syntax
System.out.println("Learning Java Syntax...");
}
}Make sure to practice this example in the editor to fully understand the syntax.
Java Output
Output is a critical part of any programming language. In Java, you can display text and variables to the console using specific methods provided by the System class.
Print Text
You learned from the previous chapter that you can use the println() method to output values or print text in Java:
public class Main {
public static void main(String[] args) {
System.out.println("Hello World!");
System.out.println("I am learning Java.");
System.out.println("It is awesome!");
}
}You can add as many println() methods as you want. Each method call will output the text on a new line.
TEST YOURSELF
Which method prints text and creates a new line?
Full Stack JavaScript
JavaScript has been around for over 20 years. It is the dominant programming language in web development.
In the beginning JavaScript was a language for the web client (browser). Then came the ability to use JavaScript on the web server (with Node.js). Today the hottest buzzword is “Full Stack JavaScript”.
The idea of “Full Stack JavaScript” is that all software in a web application, both client side and server side, should be written using JavaScript only.
In the beginning JavaScript was a language for the web client (browser). Then came the ability to use JavaScript on the web server (with Node.js). Today the hottest buzzword is “Full Stack JavaScript”. The idea of “Full Stack JavaScript” is that all software in a web application, both client side and server side, should be written using JavaScript only.
Double Quotes
When you are working with text (strings), it must be wrapped inside double quotation marks "".
If you forget the double quotes, an error occurs:
The Print() Method
There is also a print() method, which is similar to println().
The only difference is that it does not insert a new line at the end of the output:
public class Main {
public static void main(String[] args) {
System.out.print("Hello World! ");
System.out.print("I will print on the same line.");
}
}Java Comments
Welcome to the Java Comments chapter of the Java tutorial. This section covers fundamental concepts necessary for mastering Java programming.
Example: Java Comments
Below is a standard example demonstrating how Java Comments works in Java:
public class Main {
public static void main(String[] args) {
// This is a demo for Java Comments
System.out.println("Learning Java Comments...");
}
}Make sure to practice this example in the editor to fully understand the syntax.
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