The statement is true. Java primitive types (such as int, double, or float) cannot have null values, so we must keep this in mind when selecting the types of your result expression and host expression.
Variables in Java are divided into two types: primitive variables and reference variables. A primitive variable's information is stored as its value by the programmer, whereas a reference variable holds a reference to information related to that variable. The words true and false in a Java program always refer to these boolean values. The data type boolean is named after George Boole, a nineteenth-century mathematician who discovered that true/false values can be used for a variety of purposes. Because all of the primitive types are lowercase, Option A is correct. Primitives, unlike object reference variables, cannot refer to null.
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