Java development for beginners 3. Variables, expressions and data types.

This video tutorial is the second part of the Tutorial 2, where we introduced the words variables, types and expressions .

In this tutorial we develop these concepts, applying them in different cases in our small program.

Below we can see the code we are going to use in this tutorial:

public class Variable {
	public static void main(String[] args) {
		String s="Hola Mundo";
		String palabra2=" Ciao";
		String resultado=s+palabra2;
		int a;
		a = 1;
		int b = 2;
		int c=a + b;

		System.out.println(resultado);
		System.out.println(s);
		System.out.println(a);
		System.out.println(b);
		System.out.println(c);
		System.out.println("fin");
	}
}

In the class Variable we introduce a new datatype; String and we show different cases for assignment, concatenation, as well as for the concepts already introduced.