The collection framework also provides some complex classes such as Set, Queue, Dequeue, Map, and TreeMap. ![]() ![]() We should have the implementation knowledge of all these classes and interfaces along with their methods. The collection Framework is the 1 st most important framework that provides several useful classes such as ArrayList, Stack, LinkedList, Iterators, Comparable interface, etc. ![]() Once you get knowledge of the entire core Java concepts, you are ready to dive into advanced Java and get knowledge of its concepts. Collection FrameworkĪll the above-discussed concepts are part of the core Java. We should know initializing and defining arrays, ways to define or initialize an array, perform iteration on it using for loop, access and remove variables from it, call by value and call by reference methods, and many more. The array is one of the big concepts in itself because we can perform several operations in it. We can include Java array in core concepts, but it will be good to separate it from core concepts. If you have no knowledge of the core concepts of Java, get knowledge of all the above-mentioned concepts deeply. The core concepts include Interfaces, Abstract class, multiple inheritances using interface, Inner class, Nested class, Local inner class, Anonymous object, Anonymous inner class, User input, Static elements, Static inner class, Final keyword, Packages, Scope, Access modifier, Exception handling, multiple try-catch blocks, Finally, block, Throw and throws, User-defined exception, Checked and unchecked exception, Enum, and Strings(String literals, String Object, String methods, String formatting), etc. The Oops concepts are the building blocks for every object-oriented programming language. Before diving into advanced Java, you should have to clear the concepts of core Java such as Classes, Getters, Setters, Constructors, Inheritance, Composition, Encapsulation, Abstraction, Objects, and Polymorphism, etc. The developer should have knowledge of all the Opps concepts because Java is completely based on objects, methods, and classes. The developer should also have good knowledge of code block, indentation, and statements. Java is an object-oriented programming language, so your concepts of methods should be crystal and clear. Method overloading and method overriding are the two most important concepts of polymorphism, which play an important role in developing Java web and desktop applications. The developer should have knowledge of parameterized and non-parameterized methods with the return type. For a full-stack position, firstly, you should have to gain knowledge of all the basic concepts of Java because you can't develop lengthy codes for an organization if your basics are not clear of Java. A developer cannot write a code if he/she has no knowledge of flow control. Flow ControlĪfter decision-making, the developer should know control flow statements and looping statements such as while, do-while, for, switch case, break, continue, modulo operator and nested loop, etc. So, a developer should have knowledge of all the decision-making statements and operators. If, else if, and else statements play an important role in decision making. ![]() Operators such as arithmetic operators, assignments operators, and ternary operators are used for decision making. The developer should have knowledge of decision-making statements and the operators which are used to make a decision. These are a very basic concept which not only an experience but also a fresher candidate should have. The developer should know about installing IDE's in the system such as IntelliJ and Eclipse, hello world program in IntelliJ, how we can import project files, how we can import eclipse(Java IDE) projects in IntelliJ. Java full-stack is basically a term used for a web developer that uses Java to develop the entire technology stack is referred to as Java full stack developer.Ī developer should have the following skills to become a Java full-stack developer: 1. A full-stack developer is a person who can develop application's backend and frontend.
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