in c# i need to  Create an application named TurningDemo that creates instances of four classes: Page, Corner, Pancake, and Leaf. Create an interface named ITurnable that contains a single method named Turn(). The classes named Page, Corner, Pancake, and Leaf implement ITurnable. Create each class’s Turn() method to display an appropriate message. For example: The Page’s Turn() method should display You turn a page in a book. The Corner’s Turn() method should display You turn corners to go around the block. The Pancake's Turn() method should display You turn a pancake when it's done on one side. The Leaf's Turn() method should display A leaf turns colors in the fall. i keep getting the errors and my code is in the pics  Unit Test Incomplete Page class defined Build Status Build Failed Build Outpu tCompilation failed: 3 error(s), 0 warnings NtTest5f1df6cd.cs(12,26): error CS0246: The type or namespace name `ITurnable' could not be found. Are you missing `TurningDemo' using directive? NtTest5f1df6cd.cs(23,7): error CS0246: The type or namespace name `Page' could not be found. Are you missing `TurningDemo' using directive? NtTest5f1df6cd.cs(24,7): error CS0841: A local variable `page' cannot be used before it is declared   Test Contents [TestFixture] public class PageClassTest { [Test] public void PageTest() { Assert.IsTrue(typeof(ITurnable).IsAssignableFrom(typeof(Page)), "`Page` class should implement `IRecoverable` class"); } [Test] public void PageTest2() { using (StringWriter sw = new StringWriter()) { Console.SetOut(sw); Page page = new Page(); page.Turn(); string expected = "You turn a page in a book"; Assert.AreEqual(expected, sw.ToString().Trim()); } } } Unit Test Incomplete Leaf class defined Build Status Build Failed Build Output Compilation failed: 3 error(s), 0 warnings NtTeste0f8fa97.cs(12,26): error CS0246: The type or namespace name `ITurnable' could not be found. Are you missing `TurningDemo' using directive? NtTeste0f8fa97.cs(23,7): error CS0246: The type or namespace name `Leaf' could not be found. Are you missing `TurningDemo' using directive? NtTeste0f8fa97.cs(24,7): error CS0841: A local variable `leaf' cannot be used before it is declared   Test Contents   [TestFixture] public class LeafClassTest { [Test] public void LeafTest() { Assert.IsTrue(typeof(ITurnable).IsAssignableFrom(typeof(Leaf)), "`Leaf` class should implement `IRecoverable` class"); } [Test] public void LeafTest2() { using (StringWriter sw = new StringWriter()) { Console.SetOut(sw); Leaf leaf = new Leaf(); leaf.Turn(); string expected = "A leaf turns colors in the fall"; Assert.AreEqual(expected, sw.ToString().Trim()); } } } Unit Test Incomplete Pancake class defined Build Status Build Failed Build Output Compilation failed: 3 error(s), 0 warnings NtTest68bcf81d.cs(12,26): error CS0246: The type or namespace name `ITurnable' could not be found. Are you missing `TurningDemo' using directive? NtTest68bcf81d.cs(23,7): error CS0246: The type or namespace name `Pancake' could not be found. Are you missing `TurningDemo' using directive? NtTest68bcf81d.cs(24,7): error CS0841: A local variable `pancake' cannot be used before it is declared Test Contents [TestFixture] public class PancakeClassTest { [Test] public void PancakeTest() { Assert.IsTrue(typeof(ITurnable).IsAssignableFrom(typeof(Pancake)), "`Pancake` class should implement `IRecoverable` class"); } [Test] public void PancakeTest2() { using (StringWriter sw = new StringWriter()) { Console.SetOut(sw); Pancake pancake = new Pancake(); pancake.Turn(); string expected = "You turn a pancake when it's done on one side"; Assert.AreEqual(expected, sw.ToString().Trim()); } } }   Unit Test Incomplete Corner class defined Build Status Build Failed Build Output Compilation failed: 3 error(s), 0 warnings NtTest014d6109.cs(12,26): error CS0246: The type or namespace name `ITurnable' could not be found. Are you missing `TurningDemo' using directive? NtTest014d6109.cs(23,7): error CS0246: The type or namespace name `Corner' could not be found. Are you missing `TurningDemo' using directive? NtTest014d6109.cs(24,7): error CS0841: A local variable `corner' cannot be used before it is declared   Test Contents [TestFixture] public class CornerClassTest { [Test] public void CornerTest() { Assert.IsTrue(typeof(ITurnable).IsAssignableFrom(typeof(Corner)), "`Corner` class should implement `IRecoverable` class"); } [Test] public void CornerTest2() { using (StringWriter sw = new StringWriter()) { Console.SetOut(sw); Corner corner = new Corner(); corner.Turn(); string expected = "You turn corners to go around the block"; Assert.AreEqual(expected, sw.ToString().Trim()); } } }

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question

in c# i need to 

Create an application named TurningDemo that creates instances of four classes: Page, Corner, Pancake, and Leaf.

Create an interface named ITurnable that contains a single method named Turn(). The classes named Page, Corner, Pancake, and Leaf implement ITurnable.

Create each class’s Turn() method to display an appropriate message. For example:

  • The Page’s Turn() method should display You turn a page in a book.
  • The Corner’s Turn() method should display You turn corners to go around the block.
  • The Pancake's Turn() method should display You turn a pancake when it's done on one side.
  • The Leaf's Turn() method should display A leaf turns colors in the fall.

i keep getting the errors and my code is in the pics 

Unit Test
Incomplete

Page class defined

Build Status
Build Failed
Build Outpu
tCompilation failed: 3 error(s), 0 warnings
NtTest5f1df6cd.cs(12,26): error CS0246: The type or namespace name `ITurnable' could not be found. Are you missing `TurningDemo' using directive?
NtTest5f1df6cd.cs(23,7): error CS0246: The type or namespace name `Page' could not be found. Are you missing `TurningDemo' using directive?
NtTest5f1df6cd.cs(24,7): error CS0841: A local variable `page' cannot be used before it is declared
 
Test Contents
[TestFixture]
public class PageClassTest
{
[Test]
public void PageTest()
{
Assert.IsTrue(typeof(ITurnable).IsAssignableFrom(typeof(Page)),
"`Page` class should implement `IRecoverable` class");
}
[Test]
public void PageTest2()
{
using (StringWriter sw = new StringWriter())
{
Console.SetOut(sw);
Page page = new Page();
page.Turn(); string expected = "You turn a page in a book";
Assert.AreEqual(expected, sw.ToString().Trim());
}
}
}
Unit Test
Incomplete

Leaf class defined

Build Status
Build Failed
Build Output
Compilation failed: 3 error(s), 0 warnings
NtTeste0f8fa97.cs(12,26): error CS0246: The type or namespace name `ITurnable' could not be found. Are you missing `TurningDemo' using directive?
NtTeste0f8fa97.cs(23,7): error CS0246: The type or namespace name `Leaf' could not be found. Are you missing `TurningDemo' using directive?
NtTeste0f8fa97.cs(24,7): error CS0841: A local variable `leaf' cannot be used before it is declared
 
Test Contents
 
[TestFixture]
public class LeafClassTest
{
[Test]
public void LeafTest()
{
Assert.IsTrue(typeof(ITurnable).IsAssignableFrom(typeof(Leaf)),
"`Leaf` class should implement `IRecoverable` class");
}
[Test]
public void LeafTest2()
{
using (StringWriter sw = new StringWriter())
{
Console.SetOut(sw);
Leaf leaf = new Leaf();
leaf.Turn(); string expected = "A leaf turns colors in the fall";
Assert.AreEqual(expected, sw.ToString().Trim());
}
}
}
Unit Test
Incomplete

Pancake class defined

Build Status
Build Failed
Build Output
Compilation failed: 3 error(s), 0 warnings
NtTest68bcf81d.cs(12,26): error CS0246: The type or namespace name `ITurnable' could not be found. Are you missing `TurningDemo' using directive?
NtTest68bcf81d.cs(23,7): error CS0246: The type or namespace name `Pancake' could not be found. Are you missing `TurningDemo' using directive?
NtTest68bcf81d.cs(24,7): error CS0841: A local variable `pancake' cannot be used before it is declared
Test Contents
[TestFixture]
public class PancakeClassTest
{
[Test]
public void PancakeTest() { Assert.IsTrue(typeof(ITurnable).IsAssignableFrom(typeof(Pancake)),
"`Pancake` class should implement `IRecoverable` class");
}
[Test]
public void PancakeTest2()
{
using (StringWriter sw = new StringWriter())
{
Console.SetOut(sw);
Pancake pancake = new Pancake(); pancake.Turn();
string expected = "You turn a pancake when it's done on one side"; Assert.AreEqual(expected, sw.ToString().Trim());
}
}
}
 
Unit Test
Incomplete

Corner class defined

Build Status
Build Failed
Build Output
Compilation failed: 3 error(s), 0 warnings
NtTest014d6109.cs(12,26): error CS0246: The type or namespace name
`ITurnable' could not be found. Are you missing `TurningDemo' using directive? NtTest014d6109.cs(23,7): error CS0246: The type or namespace name `Corner' could not be found. Are you missing `TurningDemo' using directive?
NtTest014d6109.cs(24,7): error CS0841: A local variable `corner' cannot be used before it is declared
 
Test Contents
[TestFixture]
public class CornerClassTest
{
[Test]
public void CornerTest()
{
Assert.IsTrue(typeof(ITurnable).IsAssignableFrom(typeof(Corner)),
"`Corner` class should implement `IRecoverable` class");
}
[Test]
public void CornerTest2()
{
using (StringWriter sw = new StringWriter())
{ Console.SetOut(sw); Corner corner = new Corner();
corner.Turn();
string expected = "You turn corners to go around the block";
Assert.AreEqual(expected, sw.ToString().Trim());
}
}
}
 
 
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}
}
{
}
return "A leaf turns colors in the fall.";
class Program
{
static void Main(string[] args)
{
Page page1 = new Page();
Corner corner1 = new Corner();
Pancake pancake1 = new Pancake ();
Leaf leaf1 = new Leaf();
Console.WriteLine("Page: + page1. Turn());
Console.WriteLine("Corner:
Console.WriteLine("Pancake:
+ corner1. Turn());
+ pancake1. Turn());
Console.WriteLine("Leaf: " + leaf1.Turn());
Console.ReadLine();
Transcribed Image Text:41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 } } { } return "A leaf turns colors in the fall."; class Program { static void Main(string[] args) { Page page1 = new Page(); Corner corner1 = new Corner(); Pancake pancake1 = new Pancake (); Leaf leaf1 = new Leaf(); Console.WriteLine("Page: + page1. Turn()); Console.WriteLine("Corner: Console.WriteLine("Pancake: + corner1. Turn()); + pancake1. Turn()); Console.WriteLine("Leaf: " + leaf1.Turn()); Console.ReadLine();
1 using System;
using
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using System.Linq;
4 using System.Text;
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using System.Threading.Tasks;
namespace TurningDemo
{
System.Collections.Generic;
public interface ITurnable
}
}
class Page : ITurnable
{
}
string Turn();
}
public string Turn()
{
}
class Corner : ITurnable
{
return "You turn a page in the book.";
public string Turn()
{
}
return "You turn at the corner.";
class Pancake : ITurnable
{
public string Turn()
{
}
return "You turn a pancake.";
class Leaf : ITurnable
{
public string Turn()
Transcribed Image Text:1 using System; using 2 3 using System.Linq; 4 using System.Text; 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 using System.Threading.Tasks; namespace TurningDemo { System.Collections.Generic; public interface ITurnable } } class Page : ITurnable { } string Turn(); } public string Turn() { } class Corner : ITurnable { return "You turn a page in the book."; public string Turn() { } return "You turn at the corner."; class Pancake : ITurnable { public string Turn() { } return "You turn a pancake."; class Leaf : ITurnable { public string Turn()
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