Chapter 8, Problem 3SA

a.

Program Plan Intro

Substring:

• Substring is defined as a string within a string.
• String can also be said as the array of characters and in C# the individual characters present in a string can be accessed using the subscript notation.
• Substring method of the string object is used to retrieve a specific set of characters from a string.

Explanation of Solution

b.

Contains:

This method is used to check whether the given string contains the substring or not. It returns true if the substring is present in it otherwise returns false.

//declaring and assigning the values

string dessert= “VENICE is beautiful”;

//check whether the given character is found

bool found=dessert.Contains(“VIDI”);

//check whether the value of found is true or not

if(found==true)

{

  // display the message using messagebox

  MessageBox...

Explanation of Solution

c.

EndsWith:

“EndsWith” method takes a string as argument and returns true if the specified string ends with the “augmented string” otherwise returns false.

//declaring and assigning the values

string dessert= “ string named VICI”;

//check whether the given character is found

bool found=dessert.EndsWith(“VICI”);

//check whether the value of found is true or not

if(found==true)

{

  // display the message using messagebox

MessageBox...