<<PreviousPage NextPage>>
Decision Making
If Else Statement
If Else statement is used for decision making in c# . In the below example we will see how we can use if else statement in C# to great effect.
Nested If Else Statement
We can improve upon the above example by adding nest if else statement. Nested if else statement helps to add extra if else block with in an if or else block.
Switch Statement
In place where we need multiple if else statements to satisfy a criteria we can add switch statement instead of if else statement.
We can create an application which would answer our question and let us know about the Date and Time. This will be a small AI sort of idea which would recognize your command and perform accordingly.
Code -
Console.WriteLine("................Welcome to Mini AI................");
string input = "a";
while(input!=string.Empty)
{
Console.WriteLine("Enter Input : ");
input = Console.ReadLine();
switch (input)
{
case "Hi":
Console.WriteLine("how can I help you?");
continue;
case "hi":
Console.WriteLine("how can I help you?");
continue;
case "Hello":
Console.WriteLine("how can I help you?");
break;
case "hello":
Console.WriteLine("how can I help you?");
break;
case "What time is it":
Console.WriteLine("Time is "+ DateTime.Now.TimeOfDay);
break;
case "what time is it":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "What is the time":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "what is the time":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "Tell me the time":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "tell me the time":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "Time":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "time":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "Time please":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "time please":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "Good bye":
Console.WriteLine("Thanks for your time, have a nice day!!");
break;
case "Bye":
Console.WriteLine("Thanks for your time, have a nice day!!");
break;
case "bye":
Console.WriteLine("Thanks for your time, have a nice day!!");
break;
case "Tchau":
Console.WriteLine("Thanks for your time, have a nice day!!");
break;
case "bye bye":
Console.WriteLine("Thanks for your time, have a nice day!!");
break;
}
}
Out Put
Nested Switch Statement
We can improve upon the code by adding nested switch statement where we can multiple switch statements with in a switch statement
we need to change the code
to
case "Good bye":
{
Console.WriteLine("Are you sure, you wanna leave?");
string sure = Console.ReadLine();
switch (sure)
{
case "Yes":
Console.WriteLine("Thanks for your time, have a nice day!!");
break;
case "No":
Console.WriteLine("Please continue");
continue;
}
break;
}
we need to change the code
case "Good bye":
Console.WriteLine("Thanks for your time, have a nice day!!");
break;
to
case "Good bye":
{
Console.WriteLine("Are you sure, you wanna leave?");
string sure = Console.ReadLine();
switch (sure)
{
case "Yes":
Console.WriteLine("Thanks for your time, have a nice day!!");
break;
case "No":
Console.WriteLine("Please continue");
continue;
}
break;
}
and add the same to change other switch statements like below
Console.WriteLine("................Welcome to Mini AI................");
string input = "a";
while(input!=string.Empty)
{
Console.WriteLine("Enter Input : ");
input = Console.ReadLine();
switch (input)
{
case "Hi":
Console.WriteLine("how can I help you?");
continue;
case "hi":
Console.WriteLine("how can I help you?");
continue;
case "Hello":
Console.WriteLine("how can I help you?");
break;
case "hello":
Console.WriteLine("how can I help you?");
break;
case "What time is it":
Console.WriteLine("Time is "+ DateTime.Now.TimeOfDay);
break;
case "what time is it":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "What is the time":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "what is the time":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "Tell me the time":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "tell me the time":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "Time":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "time":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "Time please":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "time please":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "Good bye":
{
Console.WriteLine("Are you sure, you wanna leave?");
string sure = Console.ReadLine();
switch (sure)
{
case "Yes":
Console.WriteLine("Thanks for your time, have a nice day!!");
break;
case "No":
Console.WriteLine("Please continue");
continue;
}
break;
}
case "Bye":
{
Console.WriteLine("Are you sure, you wanna leave?");
string sure = Console.ReadLine();
switch (sure)
{
case "Yes":
Console.WriteLine("Thanks for your time, have a nice day!!");
break;
case "No":
Console.WriteLine("Please continue");
continue;
}
break;
}
case "bye":
{
Console.WriteLine("Are you sure, you wanna leave?");
string sure = Console.ReadLine();
switch (sure)
{
case "Yes":
Console.WriteLine("Thanks for your time, have a nice day!!");
break;
case "No":
Console.WriteLine("Please continue");
continue;
}
break;
}
case "Tchau":
{
Console.WriteLine("Are you sure, you wanna leave?");
string sure = Console.ReadLine();
switch (sure)
{
case "Yes":
Console.WriteLine("Thanks for your time, have a nice day!!");
break;
case "No":
Console.WriteLine("Please continue");
continue;
}
break;
}
case "bye bye":
{
Console.WriteLine("Are you sure, you wanna leave?");
string sure = Console.ReadLine();
switch (sure)
{
case "Yes":
Console.WriteLine("Thanks for your time, have a nice day!!");
break;
case "No":
Console.WriteLine("Please continue");
continue;
}
break;
}
}
Console.WriteLine("................Welcome to Mini AI................");
string input = "a";
while(input!=string.Empty)
{
Console.WriteLine("Enter Input : ");
input = Console.ReadLine();
switch (input)
{
case "Hi":
Console.WriteLine("how can I help you?");
continue;
case "hi":
Console.WriteLine("how can I help you?");
continue;
case "Hello":
Console.WriteLine("how can I help you?");
break;
case "hello":
Console.WriteLine("how can I help you?");
break;
case "What time is it":
Console.WriteLine("Time is "+ DateTime.Now.TimeOfDay);
break;
case "what time is it":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "What is the time":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "what is the time":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "Tell me the time":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "tell me the time":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "Time":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "time":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "Time please":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "time please":
Console.WriteLine("Time is " + DateTime.Now.TimeOfDay);
break;
case "Good bye":
{
Console.WriteLine("Are you sure, you wanna leave?");
string sure = Console.ReadLine();
switch (sure)
{
case "Yes":
Console.WriteLine("Thanks for your time, have a nice day!!");
break;
case "No":
Console.WriteLine("Please continue");
continue;
}
break;
}
case "Bye":
{
Console.WriteLine("Are you sure, you wanna leave?");
string sure = Console.ReadLine();
switch (sure)
{
case "Yes":
Console.WriteLine("Thanks for your time, have a nice day!!");
break;
case "No":
Console.WriteLine("Please continue");
continue;
}
break;
}
case "bye":
{
Console.WriteLine("Are you sure, you wanna leave?");
string sure = Console.ReadLine();
switch (sure)
{
case "Yes":
Console.WriteLine("Thanks for your time, have a nice day!!");
break;
case "No":
Console.WriteLine("Please continue");
continue;
}
break;
}
case "Tchau":
{
Console.WriteLine("Are you sure, you wanna leave?");
string sure = Console.ReadLine();
switch (sure)
{
case "Yes":
Console.WriteLine("Thanks for your time, have a nice day!!");
break;
case "No":
Console.WriteLine("Please continue");
continue;
}
break;
}
case "bye bye":
{
Console.WriteLine("Are you sure, you wanna leave?");
string sure = Console.ReadLine();
switch (sure)
{
case "Yes":
Console.WriteLine("Thanks for your time, have a nice day!!");
break;
case "No":
Console.WriteLine("Please continue");
continue;
}
break;
}
}
output
Ternary Operator
We have already see the example of a ternary operator under condition operator section.
Please refer to condition operator here
Please refer to condition operator here
<<PreviousPage NextPage>>
Comments
Post a Comment