The document provides an introduction to the Java programming language with two example programs - a simple HelloWorld application and a Seller class application that collects seller details. It outlines two classes that cover delivery notes and an introduction to Java, then defines Java as an object-oriented language. It includes the code for two sample programs - one to print "Hello" and another that defines a Seller class to collect a seller's name, surname, and telephone number.

1. Class 1
 Delivery notes
Class 2
 Exposure: Introduction to Java
Java.- Java is a language oriented objects
EXERCISE
1.- HelloWorld.java (with arguments)
Pulic class HelloWorld
{
Public static void main (String[] args)
{
System.out.println(“Hello”);
}}

2. 2.- Seller.java(with income)
import java.util.Scanner;
public class Seller {
Scanner opt = new Scanner(System.in);
String Name;
String Surname;
String telephone;
Vendedor(){
this.Name="";
this.telephone="";
}
void signIn (){
System.out.println("Put your name");
Name=opt.nextLine();
System.out.println("Put your Surname");
Surname=opt.nextLine();
System.out.println("Put your telephone");
telephone=opt.nextLine();
}
void show()
{
System.out.println("Name:"+Name);
System.out.println("Surname:"+Surname);
System.out.println("Telephone:"+telephone);
}
}