Java var Keyword Explained 🔥 | Rules, Restrictions, and Real Examples (Java 10+)
In this video, we explore the `var` keyword introduced in Java 10 — a powerful feature for local variable type inference. 🚀
Var Rules:
1 – A var is used as a local variable in a constructor, method or initializer block. Example var message = "Hello, Java!";
2 – A var cannot be used as parameters in constructor, method and not instance variables or class variables.
3 – A var is always initialized on the same line where it is declared. Example var message = "Hello, Java!"; 4 – The type of a var cannot change while value is changeable.
5 – Multiple-variables declaration is not allowed with a var.
6 – A null value without a type cannot initialize a var.
7 – A var is a reserved type name. It can be used as identifier.
Whether you're a beginner or an experienced Java developer, this video will help you understand everything about `var` with clear explanations and practical demos.
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