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Maha
NA
0
326.3k
Switch and Enum
Jul 3 2013 9:40 AM
This program is given in the following website
http://www.dotnetperls.com/switch-enum
Its output is
False
True
If this program is altered like as follows
Instead of
Priority
priority =
Priority
.Zero; is replaced with new a code
Priority
priority =
new
Priority
();
priority = Priority.Low;
and
priority = Priority.Important;
command out
The output is
False
False
Please explain the reason.
Program
using System;
enum Priority
{
Zero,
Low,
Medium,
Important,
Critical
};
class Program
{
static void Main()
{
// New local variable of the Priority enum type.
Priority priority = Priority.Zero;
//Set priority to critical on Monday.
if (DateTime.Today.DayOfWeek == DayOfWeek.Monday)
{
priority = Priority.Critical;
}
// Write this if the priority is important.
if (IsImportant(priority))
{
Console.WriteLine("The problem is important.");
}
// See if Low priority is important.
priority = Priority.Low;
Console.WriteLine(IsImportant(priority));
// See if Important priority is.
priority = Priority.Important;
Console.WriteLine(IsImportant(priority));
Console.ReadKey();
}
static bool IsImportant(Priority priority)
{
// Switch on the Priority enum.
switch (priority)
{
case Priority.Low:
case Priority.Medium:
case Priority.Zero:
default:
return false;
case Priority.Important:
case Priority.Critical:
return true;
}
}
}
/*
False
True
*/
Altered program
using System;
enum Priority
{
Zero,
Low,
Medium,
Important,
Critical
};
class Program
{
static void Main()
{
// New local variable of the Priority enum type.
//Priority priority = Priority.Zero;
Priority priority = new Priority();
//Set priority to critical on Monday.
if (DateTime.Today.DayOfWeek == DayOfWeek.Monday)
{
priority = Priority.Critical;
}
// Write this if the priority is important.
if (IsImportant(priority))
{
Console.WriteLine("The problem is important.");
}
// See if Low priority is important.
//priority = Priority.Low;
Console.WriteLine(IsImportant(priority));
// See if Important priority is.
//priority = Priority.Important;
Console.WriteLine(IsImportant(priority));
Console.ReadKey();
}
static bool IsImportant(Priority priority)
{
// Switch on the Priority enum.
switch (priority)
{
case Priority.Low:
case Priority.Medium:
case Priority.Zero:
default:
return false;
case Priority.Important:
case Priority.Critical:
return true;
}
}
}
/*
False
False
*/
Reply
Answers (
2
)
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