Hw7 calculator

hw7CalculatorWinForms/hw7CalculatorWinForms.Test/CalculatorTools.Test.cs

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+using NUnit.Framework;
+using System;
+
+namespace Hw7CalculatorWinForms.Test
+{
+    public class Tests
+    {
+        [Test]
+        public void AdditionTest()
+        {
+            double number = 2;
+            CalculatorTools.Calculate(ref number, 5, "+");
+            Assert.AreEqual(number, 7);
+            number = 2;
+            CalculatorTools.Calculate(ref number, -5, "+");
+            Assert.AreEqual(number, -3);
+        }
+
+        [Test]
+        public void SubtractionTest()
+        {
+            double number = 2;
+            CalculatorTools.Calculate(ref number, 5, "-");
+            Assert.AreEqual(number, -3);
+            number = 2;
+            CalculatorTools.Calculate(ref number, -5, "-");
+            Assert.AreEqual(number, 7);
+        }
+
+        [Test]
+        public void MultiplicationTest()
+        {
+            var number = 2.0;
+            CalculatorTools.Calculate(ref number, 5, "*");
+            Assert.AreEqual(number, 10);
+            number = 2;
+            CalculatorTools.Calculate(ref number, -5, "*");
+            Assert.AreEqual(number, -10);
+            var number1 = -2.0;
+            CalculatorTools.Calculate(ref number1, -5, "*");
+            Assert.AreEqual(number1, 10);
+        }
+
+        [Test]
+        public void DivideTest()
+        {
+            var number = 10.0;
+            CalculatorTools.Calculate(ref number, 5, "/");
+            Assert.AreEqual(number, 2);
+            number = 10;
+            CalculatorTools.Calculate(ref number, -5, "/");
+            Assert.AreEqual(number, -2);
+        }
+
+        [Test]
+        public void DivideExceptionTest()
+        {
+            var number = 2.0;
+            Assert.Throws<DivideByZeroException> (() => CalculatorTools.Calculate(ref number, 0, "/"));
+        }
+    }
+}

hw7CalculatorWinForms/hw7CalculatorWinForms.Test/hw7CalculatorWinForms.Test.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="NUnit" Version="3.12.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="3.16.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.5.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\hw7CalculatorWinForms\Hw7CalculatorWinForms.csproj" />
+  </ItemGroup>
+
+</Project>

hw7CalculatorWinForms/hw7CalculatorWinForms.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.31205.134
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Hw7CalculatorWinForms", "hw7CalculatorWinForms\Hw7CalculatorWinForms.csproj", "{64316CB1-E781-4469-90CA-9C1F5CDE923C}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "hw7CalculatorWinForms.Test", "hw7CalculatorWinForms.Test\hw7CalculatorWinForms.Test.csproj", "{E823189C-A44F-4668-BCA8-B042FB3BD6D5}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{64316CB1-E781-4469-90CA-9C1F5CDE923C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{64316CB1-E781-4469-90CA-9C1F5CDE923C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{64316CB1-E781-4469-90CA-9C1F5CDE923C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{64316CB1-E781-4469-90CA-9C1F5CDE923C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{E823189C-A44F-4668-BCA8-B042FB3BD6D5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E823189C-A44F-4668-BCA8-B042FB3BD6D5}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E823189C-A44F-4668-BCA8-B042FB3BD6D5}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E823189C-A44F-4668-BCA8-B042FB3BD6D5}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {501A679A-B9EC-4660-AD72-6ADD85C065A7}
+	EndGlobalSection
+EndGlobal

hw7CalculatorWinForms/hw7CalculatorWinForms/CalculatorForms.cs

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+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace Hw7CalculatorWinForms
+{
+    /// <summary>
+    /// класс с интерфейс калькулятора
+    /// </summary>
+    public partial class CalculatorForms : Form
+    {
+        private string numberFirst = "";
+
+        private string numberSecond = "";
+
+        private int countNumber = 0;
+
+        private string sign = "";
+
+        private bool isMinus = false;
+
+        public CalculatorForms()
+            => InitializeComponent();
+
+        private void button1_MouseClick(object sender, MouseEventArgs e)
+        {
+            if (sign != "")
+            {
+                countNumber = 1;
+            }
+            if (countNumber == 0)
+            {
+                numberFirst += (sender as Button).Text;
+                buttonText.Text = numberFirst;
+            }
+            else
+            {
+                numberSecond += (sender as Button).Text;
+                buttonText.Text = numberSecond;
+            }
+        }
+
+        private void buttonPlusMinus_MouseClick(object sender, MouseEventArgs e)
+        {
+            if (!isMinus)
+            {
+                if (countNumber == 0)
+                {
+                    numberFirst = "-" + numberFirst;
+                    buttonText.Text = numberFirst;
+                }
+                else
+                {
+                    numberSecond = "-" + numberSecond;
+                    buttonText.Text = numberSecond;
+                }
+            }
+            else
+            {
+                if (countNumber == 0)
+                {
+                    numberFirst = numberFirst.Substring(1);
+                    buttonText.Text = numberFirst;
+                }
+                else
+                {
+                    numberSecond = numberSecond.Substring(1);
+                    buttonText.Text = numberSecond;
+                }
+            }
+            isMinus = !isMinus;
+        }
+
+        private void buttonSign_MouseClick(object sender, MouseEventArgs e)
+        {
+            sign = (sender as Button).Text;
+            if (numberFirst != "" && numberSecond != "")
+            {
+                double number1 = double.Parse(numberFirst);
+                double number2 = double.Parse(numberSecond);
+                CalculatorTools.Calculate(ref number1, number2, sign);
+                numberFirst = Convert.ToString(number1);
+                numberSecond = "";
+                sign = "";
+                countNumber = 1;
+                buttonText.Text = numberFirst;
+            }
+        }
+
+        private void buttonEqual_MouseClick(object sender, MouseEventArgs e)
+        {
+            double number1 = double.Parse(numberFirst);
+            double number2 = double.Parse(numberSecond);
+            try
+            {
+                CalculatorTools.Calculate(ref number1, number2, sign);
+            }
+            catch (DivideByZeroException)
+            {
+                numberFirst ="";
+                numberSecond = "";
+                sign = "";
+                buttonText.Text = "Error";
+                countNumber = 0;
+                return;
+            }
+            numberFirst = Convert.ToString(number1);
+            numberSecond = "";
+            sign = "";
+            countNumber = 1;
+            buttonText.Text = numberFirst;
+        }
+
+        private void buttonDelete_MouseClick(object sender, MouseEventArgs e)
+        {
+            if (sign == "")
+            {
+                if (numberFirst.Length == 0)
+                {
+                    return;
+                }
+                numberFirst = numberFirst.Substring(0, numberFirst.Length - 1);
+                buttonText.Text = numberFirst;
+                if (numberFirst == "")
+                {
+                    isMinus = false;
+                }
+            }
+            else
+            {
+                if (numberSecond.Length == 0)
+                {
+                    return;
+                }
+                numberSecond = numberSecond.Substring(0, numberSecond.Length - 1);
+                buttonText.Text = numberSecond;
+                if (numberSecond == "")
+                {
+                    isMinus = false;
+                }
+            }
+        }
+
+        private void buttonResetAll_MouseClick(object sender, MouseEventArgs e)
+        {
+            numberFirst = "";
+            numberSecond = "";
+            sign = "";
+            countNumber = 0;
+            isMinus = false;
+            buttonText.Text = "0";
+        }
+
+        private void buttonResetString_MouseClick(object sender, MouseEventArgs e)
+        {
+            if (sign == "")
+            {
+                numberFirst = numberSecond = sign = "";
+                countNumber = 0;
+                buttonText.Text = "0";
+                isMinus = false;
+            }
+            else
+            {
+                isMinus = false;
+                numberSecond = "";
+                buttonText.Text = numberFirst;
+            }
+        }
+    }
+}

hw7CalculatorWinForms/hw7CalculatorWinForms/CalculatorForms.resx

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+<root>
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

hw7CalculatorWinForms/hw7CalculatorWinForms/CalculatorTools.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Hw7CalculatorWinForms
+{
+    /// <summary>
+    /// класс для подсчета значений
+    /// </summary>
+    static public class CalculatorTools
+    {
+        /// <summary>
+        /// Считает значение двух чисел по знаку
+        /// </summary>
+        /// <param name="number1">первое число</param>
+        /// <param name="number2">второе число</param>
+        /// <param name="sign">арифмитический знак</param>
+        static public void Calculate(ref double number1, double number2, string sign)
+        {
+            switch (sign)
+            {
+                case "+":
+                    number1 = number1 + number2;
+                    break;
+                case "-":
+                    number1 = number1 - number2;
+                    break;
+                case "*":
+                    number1 = number1 * number2;
+                    break;
+                case "/":
+                    if (number2 == 0)
+                    {
+                        throw new DivideByZeroException();
+                    }
+                    number1 = number1 / number2;
+                    break;
+            }
+        }
+    }
+}