In this lesson, you will learn about the history of Java, types of Java programs, Java Virtual Machine (JVM), Java Standard Library and current Java editions. History Java was developed in 1991 by the Green Team, comprising James Gosling, Mike Sheridan, and Patrick Naughton, as a pilot project for a simple language to program smart…
Read More Introduction to JavaOutput: Brand is: Ford This is a Ford with a number of seats 5 and with colour blue
Read More Java Inheritance: A Beginner’s GuideIn this tutorial, we will explore how to use the Java HttpClient to upload a file to the server. In the next tutorial, we will cover how to configure HttpClient to accept all SSL certificates. Let’s get started! In the code example below, we will use the Apache HttpClient and the MultipartEntityBuilder. HttpClient Maven Dependencies…
Read More Java File Upload using HttpClientConvert char to String in Java using the String.valueOf() method There is a valueOf() static method in the String class that returns the String representation of its argument, which can be a char or any other data type. public class Test { public static void main(String[] args) { char ch = ‘a’; String str =…
Read More Convert Char to String in JavaOptional<T> findFirst() class Test { public static void main(String[] args) { List<Integer> numbers = new ArrayList<>(Arrays.asList(3, 7, 9, 12)); Optional<Integer> resultOptional = numbers.stream().findFirst(); if (resultOptional.isPresent()) { // checking if Optional contains any value System.out.println(“The first element in the stream is: ” + resultOptional.get()); // getting the value from Optional } else { System.out.println(“The stream is…
Read More Streams – findFirst() operationIn the previous lesson, we covered the conversion of a Decimal to Binary. Here, you will learn how to convert Binary to Decimal in Java. There are a couple of ways: Using the parseInt() method With custom logic Convert Binary to Decimal in Java using the parseInt() method We can use the parseInt(String s, int…
Read More Convert Binary to Decimal in JavaFunction<String, String> modifyString = (name) -> name.toUppecCase().concat(“modified”);
Read More Introduction to Java Functional ProgrammingMethods are an essential part of Java programming. They are used to group a set of statements together to perform a specific task, which can be called whenever needed. In this tutorial, we will discuss the different types of methods in Java, including predefined methods and user-defined methods, and their advantages. We will also cover…
Read More Master Methods in JavaThe Java Virtual Machine (JVM) is an integral part of the Java platform and is responsible for executing Java code. It provides a platform-independent environment for running Java applications, allowing developers to write code once and run it anywhere. Understanding how the JVM works is essential for Java developers to optimize performance and ensure the…
Read More Java Virtual Machine (JVM): The Complete GuideVariables are an essential part of programming in Java. They are used to store data that can be later retrieved and manipulated. Understanding the different types of variables and their scope is crucial to writing efficient and maintainable code. In this tutorial, we will discuss the basics of variables in Java, including what they are,…
Read More Master Variables in JavaIn addition to the Java Runtime Environment (JRE), the JDK includes the following components: Compiler The Java compiler is used to convert Java source code into bytecode that can be executed on the Java Virtual Machine (JVM). A compiler is a command-line tool that takes a .java file as input and produces a .class file…
Read More JRE, JDK, and JVM: Understanding Differences and UsesPrimitive type Wrapper class boolean Boolean byte Byte char Character float Float int Integer long Long short Short double Double class Test { int id = 5; Integer id1 = id; // autoboxing } class Test { public static void main(String[] args) { int a = 10; int b = 20; List<Integer> list = new…
Read More Autoboxing and Unboxing in JavaProgramming languages like Java rely on the use of data types to manage and manipulate data in a program. Data types are a fundamental concept in programming and understanding them is crucial to becoming a proficient Java developer. Java has two main categories of data types: primitive data types and reference data types. Primitive data…
Read More Java Data Types: The Complete Beginner’s GuideWelcome to this tutorial on how to compile and run your first Java program. Java is a versatile and widely used programming language, known for its portability and platform independence. Whether you are new to programming or have experience with other languages, this tutorial will provide you with a step-by-step guide to writing and executing…
Read More Your First Java Program: A Guide to Compiling and Running It Successfully