Question

Write the signature for a method that will perform the computation described below. You do not need to write the body of the method.

1. Find the concatenation of String values entered from the keyboard that ends with a given sentinel value. The sentinel value should not be included in the output. The Scanner used to read the values is not constructed in the method.

Answer 1

A signature of the method is merely declaration of a method used to define a method when there are more than one method with the same name with different parameters (function overloading)

Here they have asked to write the signature of a method which accepts 2 strings and a sentinel value and concatenate it.

public string Concatenate Strings (string str1, string str2) {

}

Here two strings that is required to be concatenated are passed as parameters of the function. Also I have given the data type of the function as string because the function would be returning the concatenated string.

Now both the strings will be entered through the keyboard and end of the string will be marked by a sentinel value and those strings taken as input is passed in the function as parameters.