Java Family

Year	Ver	Code Name	Description
1995	1.0	Java	Applets
1977	1.1	Java	Event, Beans, Internationalization
Dec 1978	1.2	Java 2	J2SE, J2EE, J2ME, Java Card
2000	1.3	Java 2	J2SE 1.3
2002	1.4	Java 2	J2SE 1.4
2004	1.5	Java 5	J2SE 1.5
Nov 2006	6	Java 6	Open-Source Java SE 6. “Multithreading” by Doug Lea
May 2007	OpenJDK free software
2010	Oracle acquired Sun
Jul 2011	7	Java 7	“Dolphin”
Mar 2014	8	Java 8	Lambda Function

Javac: Java Compiler

Java Distributions:

1. JDK (Java Developer Kit )
◇JRE & Javac & tools

2. JRE (Java Runtime Environment)
◇ JVM & core class libraries
◇ Windows / Mac / Linux

Java is Object-Oriented Programming (OOP):
1. Class
public class Employee {

public int age;
public double salary;

public Employee () { [<– constructor with no arg]
}

public Employee (int ageValue, double salaryValue) { [<- constructor with args]

age…