Java Basic Syntax refers to the set of rules that define the structure of Java programs. Understanding these rules is essential for writing syntactically correct code that a computer can execute. Java syntax includes elements such as keywords, operators, and punctuation, which must be used in specific ways to form valid statements and expressions. Key components include the use of classes, methods, and control structures like loops and conditionals. Mastering Java syntax not only helps in avoiding errors but also ensures that programs produce the desired results when executed.