Assume that SimpleInput is a class whose JavaDoc contains information about the following method: ---------------------------- public static double readDouble() This method will display a graphical input box and prompt the user for a valid numeric value, which is returned. --------------------------- Which of the following code segments correctly invokes readDouble from a main method that is not part of the SimpleInput class?

input.readDouble(); // where input is an instance of SimpleInput

Which of the following are true about a datatype? (Check all that dont apply)

The 8 primitive types are the only datatypes provided by Java.

A datatype defines the set of allowable values that can be stored.

To avoid compiler errors, values of a type must only be used in ways that are defined by the datatype.

Test

Brandon Leute 2 preguntas

Hacer el test

1Assume that SimpleInput is a class whose JavaDoc contains information about the following method:

----------------------------

public static double readDouble()

This method will display a graphical input box and prompt the user for a valid numeric value, which is returned.

---------------------------

Which of the following code segments correctly invokes readDouble from a main method that is not part of the SimpleInput class?
1. AreadDouble(SimpleInput);
2. Binput.readDouble(); // where input is an instance of SimpleInput
3. CSimpleInput.readDouble();
2Which of the following are true about a datatype? (Check all that dont apply)
1. AA datatype defines the set of allowable values that can be stored.
2. BTo avoid compiler errors, values of a type must only be used in ways that are defined by the datatype.
3. CThe 8 primitive types are the only datatypes provided by Java.
4. DClasses in Java are datatypes.