Question

A parameter array is specified in the parameter list of a method definition by using the keyword _____.

1) array
2) parameter
3) method
4) keyword

Answer 1

A parameter array is specified using the keyword 'params' in programming languages such as C#. It allows a method to accept a variable number of arguments, providing flexibility for functions handling different numbers of inputs.

Step-by-step explanation:

A parameter array is specified in the parameter list of a method definition by using the keyword params. None of the options provided (array, parameter, method, keyword) are correct. In programming languages like C# and others that follow similar syntax, the params keyword allows you to specify a method parameter that takes a variable number of arguments. When you use the params keyword, you can pass in a comma-separated list of arguments of the type specified by the array. For example:

public void ExampleMethod(params string[] stringArray)
{
foreach (var str in stringArray)
{
Console.WriteLine(str);
}
}

This method can be called with any number of string arguments, or an array of strings. It provides greater flexibility for methods that deal with a varying number of inputs.