Pro-chpt 9

Which of the following must every method have?

• a parameter list

• a header

• a return value

• an empty parameter list

A method’s interface includes its _______________.

• parameter list and return type

• identifier and parameter list

• return type, identifier, and parameter list

• parameter list

A program contains a method with the header num calculateTaxes(num amount, string name). Which of the following methods can coexist in the same program with no possible ambiguity?

• string calculateTaxes(num money, string taxpayer)

• void calculateTaxes(num gross, string ssn)

• num calculateTaxes(num annualPay, string taxpayerId)

• num calculateTaxes(string name, num amount)

When you write the declaration for a method that can receive a parameter, which of the following must be included in the method declaration?

• the name of the argument that will be used to call the method

• the name of the method that will call the method

• a local name for the parameter

• a return type that is the same as the parameter type

The value used in a method’s return statement must _______________.

• match the data type of at least one of the parameters

• be a variable

• match the data type used before the method name in the header

• be numeric

When an array is passed to a method, it is _______________.

• passed by reference

• unnamed in the method

• unalterable in the method

• passed by value

Assume that you have written a method with the header void myMethod(num a, string b). Which of the following is a correct method call?

• myMethod("Goodbye")

• myMethod(12)

• myMethod("Hola", 12)

• myMethod(12, "Hello")

Assume that you have written a method with the header string myMethod(num score, string grade). Also assume that you have declared a numeric variable named test. Which of the following is a correct method call?

• myMethod(test)

• myMethod(test, "A")

• myMethod()

• myMethod(test, test)

A void method _______________.

• returns nothing

• requires no parameters

• contains no statements

• has no name

Programmers should strive to _______________.

• decrease both coupling and cohesion

• increase both coupling and cohesion

• increase coupling

• increase cohesion