Chapter 7.9, Problem 7.9.1CP

a)

Program Plan Intro

Variable-length argument (varargs):

In a method, the variable-length argument refers the variable number of arguments of same type. A method can contain only one variable-length parameter and the parameter must be the last parameter in the method.

Syntax:

Syntax to refer the variable-length argument is as follows:

typeName... parameterName

Example:

//variable length argument

double… num

b)

Explanation of Solution

Given Header:

public static void print(double... numbers, String... name)

Wrong with the given method header:

c)

Explanation of Solution

Given Header:

public static double... print(double d1, double d2)

Wrong with the given method header:

The return t...