Java

Java is a versatile and powerful programming language that enables developers to create robust, high-performance applications. Java is the foundation for virtually every type of networked application and is the global standard for developing and delivering enterprise software, web-based content, games and mobile applications. Java is fast, reliable and secure. And, it is the platform of choice for many of the world’s most successful companies. Java enables developers to create software on one platform and deploy it across many platforms. That means that a Java program can run on any device that has a Java Runtime Environment (JRE) installed. This “write once, run anywhere” capability makes Java ideal for developing portable applications and for creating platform-independent components. Java is an object-oriented language. That means that a Java program is made up of objects that interact with each other. The Java language is based on the concept of objects, which are self-contained units of code and data. An object has two characteristics: • It has an identity (which is defined by its memory address). • It has state (which is defined by its instance variables). An object’s behavior is defined by its methods. A method is a collection of code that is associated with an object. When a method is invoked, it is executed in the context of its object. Java is a platform-independent language. That means that a Java program can be run on any platform that supports the Java platform. The Java platform is a software-only platform that runs on top of other, real platforms. The Java platform has two components: • The Java Virtual Machine (JVM) • The Java Application Programming Interface (API) The JVM is a virtual machine that enables a computer to run a Java program. The JVM is platform-independent, meaning that it can be implemented on any hardware or operating system. The Java API is a collection of software components that provide a standard set of tools for developing Java applications. The API is also platform-independent. It is implemented on top of the JVM. Java is a versatile language that can be used to develop a wide variety of applications. Java applications can be deployed on a wide variety of platforms, including servers, desktops, laptops, gaming consoles, embedded devices, and mobile phones. Java is a high-performance language. Java programs are compiled to bytecode, which is a platform-independent code format. Bytecode can be executed by the JVM, which makes Java programs portable and efficient. Java is a secure language. Java programs run in a sandbox, which is a secure environment that protects them from malicious code. The sandbox is implemented by the JVM. Java is a reliable language. Java programs are verified to ensure that they are safe to execute. Verification is done at compile time and run time. Java is an interpreted language. Java programs are not compiled to native code. Instead, they are compiled to bytecode, which is interpreted by the JVM. Java is a portable language. Java programs can be run on any platform that supports the Java platform. Java is a platform-independent language. Java programs can be run on any platform that supports the Java platform. Java is an object-oriented language. Java programs are made up of objects that interact with each other. Java is a high-performance language. Java programs are compiled to bytecode, which is a platform-independent code format. Bytecode can be executed by the JVM, which makes Java programs portable and efficient. Java is a secure language. Java programs run in a sandbox, which is a secure environment that protects them from malicious code. The sandbox is implemented by the JVM. Java is a reliable language. Java programs are verified to ensure that they are safe to execute. Verification is done at compile time and run time. Java is an interpreted language. Java programs are not compiled to native code. Instead, they are compiled to bytecode, which is interpreted by the JVM. Java is a portable language. Java programs can be run on any platform that supports the Java platform.