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The this keyword refers to the current object in a method or constructor. The most common use of the this keyword is to eliminate the confusion between class attributes and parameters with the same name (because a class attribute is shadowed by a method or constructor parameter).
Here is a list of keywords in the Java programming language. You cannot use any of the following as identifiers in your programs. The keywords const and goto are reserved, even though they are not currently used.
1) this: to refer current class instance variable. The this keyword can be used to refer current class instance variable. If there is ambiguity between the instance variables and parameters, this keyword resolves the problem of ambiguity.
In Java, this keyword is used to refer to the current object inside a method or a constructor. For example, class Main { int instVar; Main(int instVar){ this.instVar = instVar; System.out.println("this reference = " + this); } public static void main(String[] args) { Main obj = new Main(8);
Apr 22, 2024 · Learn about Java programming keywords that form the base of Java, its functions, uses to write efficient, error-free code.
Java Keywords. Java keywords are also known as reserved words. Keywords are particular words that act as a key to a code. These are predefined words by Java so they cannot be used as a variable or object name or class name.
Java Reserved Keywords. Java has a set of keywords that are reserved words that cannot be used as variables, methods, classes, or any other identifiers: A non-access modifier. Used for classes and methods: An abstract class cannot be used to create objects (to access it, it must be inherited from another class).
