amberjolieh / java8-beginner

JAVA 8 Beginner

Install

Hello World

Print Line

```Java
System.out.println("Hello, world");
//Output: Hello, world!
```

System.out.println() can print to the console: - system is a class from the core library provided by Java - out is an object that controls the output - println() is a method associated with that object that recieves a single argument.

main() method

``` Java 
public class Person{
    public static void main(String[]args){
        System.out.println("Hello, world!);
    }
}
```

- in Java every application must contain a main() method
- this is the entry point for the app
- all other methods are invoked from the main() method.
- the signature of the method is ***public static void main(String[]args){***
    - accepts a single argument - an array of elements of type string.

Basic Operators

Primitive types

classes

packages

methods mentioned in training

static

scanner

scope

inheritance

super

constructor

formatted strings

polymorphism