PROGRAMMING LANGUAGE: [Java]

PROGRAMMING LANGUAGE: [Java]


  • What is Java?

Java is a programming language and a platform. Java is a high-level, robust, secured, and object-oriented programming language.
  •  What is the platform in java programming?

Any hardware or software environment in which a program runs is known as a platform. For example, since Java has its own runtime environment (JER) and (API), it is called a platform.
  • Java OOPs Concepts
Object-oriented programing is a paradigm that provides many concepts such as inheritance, data, binding, polymorphism, etc.
  • Java Strings
Java string provides many concepts that can be performed on a line, such as compare, concat, equals, split, length, replace, compare, substring, etc.
  • Java Inner Class
The Java inner class or nested class is a class, i.e., declared inside the ort interface. We use inner classes to logically group classes and interface in one place to be more readable and maintainable.
  • Java Regex
The java regex or regular expression is an API to define patterns for searching or manipulating strings such as passwords and email validation. After learning the java regex tutorial, you will test your own regular expressions with the java Regex Tester Tools.
  • Exception Handling in Java
The exception handling in Java is one of the powerful mechanisms to handle the runtime errors so that the normal flow of the application can be maintained. We will learn about java exceptions, their types, and the differences between checked and unchecked exceptions on this page.
  • Multithreading in Java
Multithreading in Java is a process of executing multiple threads simultaneously. Thread is basically a lightweight sub-process, the smallest unit of processing. Multiprocessing and multithreading both are used to achieve multitasking.
  • Synchronization in Java
Synchronization in Java can control the access of multiple threads to any shared resources. Therefore, Java Synchronization is a better option where we want to allow only one thread to access the shared resources.
  • Java I/O (input & output)
Java I/O (input and output) is used to process the information and produce the output based on the input. Java uses the concept of the stream to make I/O operation fast. The java.io package contains all the classes required for input and output operations.
  • Serialization in Java
Serialization in Java is a mechanism of writing the state of an object into a byte stream. It is mainly used in Hibernate, RMI, JPA, EJB, JMS technologies. The reserve operation of serialization is called deserialization.
  • Java Networking
Java Networking is a concept of connecting two or more computing devices together to share resources. Java socket programming provides a facility to transfer data between different computing devices.
  • Java AWT
Java AWT (Abstract windowing toolkit) is an API to develop GUI window-based applications in Java. Java AWT components are platform-dependent, i.e., components are displayed according to the operating system's views. Moreover, AWT is a heavyweight, i.e., its components use a system's resources. The Java. awt package provides AWT API such as TextField, Label, TextArea, RadioButton, CheckBox, Choice, list, etc.
  • Layout Managers
The Layout Manager is used to arrange components in a particular manner. Layout Manager is an interface implemented by all the classes of layout managers.
  • Java Applet
The applet is a program embedded in the webpage to generate dynamic content. It runs inside the browser and works on the client-side.
  • Java Reflection API
Java Reflection is a process of examining or modifying the run time behavior of a class at run time. The Java. lang. The course provides many methods that can be used to get metadata and examine and change a class's run time behavior.
  • Java Date
The Java. util, java.sql and Java. The text package contains classes for representing date and time. Following courses are essential for dealing with data in Java.
  • Java String to int
We can convert string to int In Java using an integer.parent() method
  • Collection in Java
Collections in Java is a framework that provides an architecture to store and manipulate a group of objects. All the operations you perform on data, such as searching, sorting, insertion, manipulation, deleting, etc., can be achieved by java collections. Java collections simply mean a single unit of objects. Java collection framework provides many interfaces (Set, List, Queue, Deque, etc.) and classes (ArrayList, Vector, LinkedList, priority queue, HashSet, LinkedHashset, TreeSet, etc.).
  • Java JDBC
 Java JDBC is a Java API to connect and execute queries with the database. JDEC API uses JDBC drivers to communicate with the database.
  • New Features in Java
Many new features have been added in Java. In addition, there is a significant enhancement made in java5, java6, and 7 like auto-boxing, generics, var-args, java annotation, enum, premain method, etc.
  • RMI (Remote Method Invocation)
The RMI is an API that provides a mechanism to create a distributed application in Java. The RMI allows an object to invoke methods on an object running to another JVM.
  • Internationalization and Localization
Internationalization is also abbreviated as I18N because there are 18 characters between the first letter "I" and the last letter "N." Localization is also abbreviated as I10N. After all, there are 10 characters between the first letters "L" and the previous letter "N." Localization is the mechanism to create such an application that can be adapted to a specific language and region by adding locale-specific text and component.