Final answer:
Java requires all parameters to have a specified data type; without it, the code will not compile. Thus, the statement is false.
Step-by-step explanation:
The statement that 'if a data type is not given for a parameter within a method, Java will automatically default the parameter as a String type' is false. In Java, it is mandatory to specify the data type for all parameters in a method declaration.
If the data type is not specified, the code will not compile, and this will result in a compilation error rather than defaulting to any type. Java is a statically-typed language, which means that all variables must be declared with a data type before they can be used.