Basic To Advanced Selenium Java Full Course - Session 1 - Introduction to IntelliJ Idea & Java
What is an IDE? IDE stands for Integrated Development Environment Software for building applications that combine common developer tools into a single GUI It consists of: Source code editor to write code in different languages Debugging tools to inspect code Automated build processes for languages including code compilation Syntax Highlighting Autocomplete What is Java? Java is a Programming Language Programming language is a set of instructions for computer to perform some specific tasks. We can create different types of applications with Java: WEB APPLICATIONS DESKTOP APPLICATIONS WEB SERVERS EMBEDDED SYSTEMS MOBILE APPLICATIONS Java is a platform independent language Java is a strongly typed language and case sensitive We can run Java programs on all operating systems: Windows Mac OS Linux Java Components: We need JDK to start development in Java JDK stands for Java Development Kit JDK allows us to create Java Programs JDK also contains JRE (Java Runtime Environment) JRE enables us to run our Java programs JVM (Java Virtual Machine) is a subset of JRE. It is a run-time engine which runs the java applications. It calls the main method present in a java program. Data Types In Java: Data is information which is stored and processed by a computer Pieces of data can be represented in code using data types Java classifies different pieces of data with data type based on their value. Primitive Data Types: boolean – true or false value ( for example, light is on or off) int – whole number ( for example, your age) double – decimal number (for example, percentage of marks) char – single letter (for example, initials or gender) Reference Data Types (Non-Primitive): class, interface, String, Arrays Variables in Java: Variables are used to store data values Types of variables: Local variables – Can be used in the same method where it is declared Static variables – Can be used without creating an object of the class where it is declared Instance variables – Can be used by creating an object of the class where it is declared To enquire more about Selenium Java Trainings, please contact us at bijan@qascript.com
What is an IDE? IDE stands for Integrated Development Environment Software for building applications that combine common developer tools into a single GUI It consists of: Source code editor to write code in different languages Debugging tools to inspect code Automated build processes for languages including code compilation Syntax Highlighting Autocomplete What is Java? Java is a Programming Language Programming language is a set of instructions for computer to perform some specific tasks. We can create different types of applications with Java: WEB APPLICATIONS DESKTOP APPLICATIONS WEB SERVERS EMBEDDED SYSTEMS MOBILE APPLICATIONS Java is a platform independent language Java is a strongly typed language and case sensitive We can run Java programs on all operating systems: Windows Mac OS Linux Java Components: We need JDK to start development in Java JDK stands for Java Development Kit JDK allows us to create Java Programs JDK also contains JRE (Java Runtime Environment) JRE enables us to run our Java programs JVM (Java Virtual Machine) is a subset of JRE. It is a run-time engine which runs the java applications. It calls the main method present in a java program. Data Types In Java: Data is information which is stored and processed by a computer Pieces of data can be represented in code using data types Java classifies different pieces of data with data type based on their value. Primitive Data Types: boolean – true or false value ( for example, light is on or off) int – whole number ( for example, your age) double – decimal number (for example, percentage of marks) char – single letter (for example, initials or gender) Reference Data Types (Non-Primitive): class, interface, String, Arrays Variables in Java: Variables are used to store data values Types of variables: Local variables – Can be used in the same method where it is declared Static variables – Can be used without creating an object of the class where it is declared Instance variables – Can be used by creating an object of the class where it is declared To enquire more about Selenium Java Trainings, please contact us at bijan@qascript.com