- JAVA TUTORIAL
- What is Java
- History of Java
- Features of Java
- C++ vs Java
- Hello Java Program
- Program Internal
- How to set path
- JDK, JRE and JVM
- Internal Details of JVM
- Java Variables
- Java Data Types
- Unicode System
- Operators
- Keywords
- CONTROL STATEMENTS
- Java If-else
- Java Switch
- Java For Loop
- Java While Loop
- Java Do While Loop
- Java Break
- Java Continue
- JAVA OBJECT CLASS
- Java OOPs Concepts
- Naming Convertion
- Object and Class
- Constructor
- static keyword
- this keyword
- JAVA INHERITANCE
- Inheritance(IS-A)
- Aggregation(HAS-A)
- JAVA POLYMORPHISM
- Method Overloading
- Method Overriding
- super keyword
- Instance Initializer block
- final keyword
- Runtime Polymorphism
- Dynamic Binding
- instanceof operator
- JAVA ABSTRACTION
- Abstact class
- Interface
- Abstract vs Interface
- JAVA ENCAPSULATION
- Package
- Access Modifiers
- Encapsulation
- JAVA ARRAY
- Java Array
- Java Programs
- JAVA TUTORIAL
- What is Java
- History of Java
- Features of Java
- C++ vs Java
- Hello Java Program
- Program Internal
- How to set path
- JDK, JRE and JVM
- Internal Details of JVM
- Java Variables
- Java Data Types
- Unicode System
- Operators
- Keywords
- CONTROL STATEMENTS
- Java If-else
- Java Switch
- Java For Loop
- Java While Loop
- Java Do While Loop
- Java Break
- Java Continue
- JAVA OBJECT CLASS
- Java OOPs Concepts
- Naming Convertion
- Object and Class
- Constructor
- static keyword
- this keyword
- JAVA INHERITANCE
- Inheritance(IS-A)
- Aggregation(HAS-A)
- JAVA POLYMORPHISM
- Method Overloading
- Method Overriding
- super keyword
- Instance Initializer block
- final keyword
- Runtime Polymorphism
- Dynamic Binding
- instanceof operator
- JAVA ABSTRACTION
- Abstact class
- Interface
- Abstract vs Interface
- JAVA ENCAPSULATION
- Package
- Access Modifiers
- Encapsulation
- JAVA ARRAY
- Java Array
- Java Programs
Internal Details of a java program
Java source code is compiled into bytecode when we use the javac compiler. The bytecode gets saved on the disk with the file extension .class. When the program is to be run, the bytecode is converted, using the just-in-time (JIT) compiler. The result is machine code which is then fed to the memory and is executed.
Compilation of a Java Program
At compilation time, java file is compiled by Java Compiler and converts the java code into bytecode.
When a Java Program is run
The Java class files or bytecode are compiled to machine code and loaded into memory by the JVM when needed the first time.