Java Variables and Data Types
In this video, I discuss the fundamental structure of a Java program, emphasizing that every program must have at least one outermost block, which can be a class or an interface. I explain the importance of naming conventions, where the file name should match the outermost block name with a .java extension. Additionally, I cover variable declaration, data types, and the distinction between primitive and non-primitive data types. I also highlight reserved words that cannot be used as variable names. As we move forward, I encourage you to practice writing a sample program to solidify your understanding of these concepts.