1.Въведение в Java

Въведение в Java
In Java all public classes should stay in a file with the same name

Java programming language is:
-	Object-oriented
-	Type-safe
-	Good for large server-side projects

The Java platform consists of:
-	Java programming language
-	Java Virtual Machine (JVM) – environment for execution of Java code
-	Java API – powerful class library
-	Has the ability to run Java programs on any machine with JVM

JVM – Java Virtual Machine
-	Executes compiled Java code (bytecode)
-	Virtual environment for safe code execution
-	Similar to CLR in .NET

JRE – Java Runtime Environment
-	A runtime environment for Java-based software
-	JRE = JVM + Java API classes (standard Java libraries)
-	Similar to .NET

JDK – Java Development Kit
-	The development platform for Java developers
-	Consists of JRE + compilers + tools