Hadoop Tutorials

Abstraction and interface are two other significant concepts in Java. Abstract class and interface are very different although there are some common points. Start this lab and comprehend the concepts.

In this lab, you will learn access modifiers and inheritance. with different modifiers, access levels are different. Inheritance in Java is like biological inheritance in that children can keep parent's features and behave differently in some way.

In this lab, you are going to learn a very important programming pattern: the object-oriented-programming. You need to know the difference between class and object. Take more practice to get a better understanding.

In Java and other object-oriented languages, objects are collections of related data that come with a set of methods. These methods operate on the objects, performing computations and sometimes modifying the object’s data. Here we introduce three simple but important Java built-in object types: Number, String and Array.

In this lab, you will learn to use packages to arrange for classes according to their functionalities.

In the Hadoop versions 2.0 and later, the new resource management pattern of YARN was introduced, which facilitates the cluster in terms of utilization, unified resource management and data sharing. Based on the foundation of building the Hadoop pseudo-distributed cluster, this section will let you learn the architecture, the working principle, configuration, and development and monitoring techniques of the YARN framework.

Embark on your Java programming journey by exploring fundamental concepts such as setting up your development environment, writing your first program, and understanding basic Java syntax and structure.

In the fiery depths of the Hellfire Abyss, a treacherous realm where flames dance with malevolent fury, a powerful Fire Lord named Infernus reigns supreme

In this lab, we learned basic data types of Java and operators. In this lab, we'll begin to learn to write procedure-oriented programs. The main idea is to use paradigm of controlling structures: conditional expressions.

Discover the fundamentals of Java programming in this beginner-friendly lab. Learn about high-level programming languages, Java's advantages, and create your first Java program from scratch to execution.

Encapsulation is like a bag that encloses the operations and the data related to an object together. Polymorphism is the ability of an object to take on many forms. In this lab, you will see what they are like.

Learn Java variables, data types, and operators in this hands-on lab. Learn to declare variables, work with primitive data types, and apply arithmetic, bitwise, and logical operators in Java programming.

In this lab, we move forward to methods and objects. The task is to learn how to define a method with parameters. Object is a very important concept in OOP language, so having a good knowledge of it will be good for you.

In this challenge, you'll practice using the `System.out.println` statement in Java

Learn Java's fundamental data types and essential operations in this hands-on lab. Learn to work with integers, perform arithmetic operations, handle floating-point numbers, manipulate strings, and apply these concepts in a practical circle calculator project.

In this lab, you will learn method overloading and method overriding. Overriding and overloading are two concepts used in Java programming language. Both the concepts allow programmer to provide different implementations for methods under the same name. Overloading happens at compile-time while overriding happens at runtime. Static methods can be overloaded but cannot be overridden. Overloading is a static bond while overriding is dynamic bond.

Computers are often used to automate repetitive tasks. Repeating tasks without making errors is something that computers do well and people do poorly. Like conditional expressions, loops can also be nested one in another, but this will make our program hard to read and the performance will not be good. Try to avoid nested loops. There are three types of loops in Java. We'll learn them one by one in this lab.

In this project, you will learn how to implement a function that can add two large integers represented as strings. This is a common problem encountered in real-world scenarios, where the built-in JavaScript number data type has limitations in representing and performing arithmetic operations on extremely large numbers.