Hw 6-7

AlexSubbotin/lesson_10/lesson_10.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4" />

AlexSubbotin/lesson_10/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.example</groupId>
+    <artifactId>lesson_10</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.hamcrest</groupId>
+            <artifactId>hamcrest-all</artifactId>
+            <version>1.3</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>RELEASE</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+
+</project>

AlexSubbotin/lesson_10/src/main/java/Cow.java

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+public class Cow {
+    public final int DAYS_IN_YEAR = 365;
+    private float cowMilkProduction;
+    private float cowFoodConsumption;
+    private float cowFoodPrise;
+    private float cowMilkPrice;
+
+    protected float calculateYearlyCowRevenue() {
+        float revenue = (this.cowMilkProduction * this.cowMilkPrice
+                - this.cowFoodConsumption * this.cowFoodPrise) * DAYS_IN_YEAR;
+        return revenue;
+    }
+
+    public float getCowMilkProduction() {
+        return cowMilkProduction;
+    }
+
+    protected void setCowMilkProduction(float cowMilkProduction) {
+        this.cowMilkProduction = cowMilkProduction;
+    }
+
+    public float getCowFoodConsumption() {
+        return cowFoodConsumption;
+    }
+
+    protected void setCowFoodConsumption(float cowFoodConsumption) {
+        this.cowFoodConsumption = cowFoodConsumption;
+    }
+
+    public float getCowFoodPrise() {
+        return cowFoodPrise;
+    }
+
+    protected void setCowFoodPrise(float cowFoodPrise) {
+        this.cowFoodPrise = cowFoodPrise;
+    }
+
+    public float getCowMilkPrice() {
+        return cowMilkPrice;
+    }
+
+    protected void setCowMilkPrice(float cowMilkPrice) {
+        this.cowMilkPrice = cowMilkPrice;
+    }
+}

AlexSubbotin/lesson_10/src/main/java/Farm.java

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+public class Farm {
+    private float farmPrice;
+    private float percentIncomeTax;
+    private float percentSalaryToMilkmaids;
+    private int numberOfCows;
+    Cow cows = new Cow();
+
+    public String calculateFarmProfit() {
+        float revenueOfAllCows = calculateYearlyAllCowsRevenue();
+        float revenueAfterTax = calculateYearlyRevenueAfterTax(revenueOfAllCows);
+        float revenueAfterSalary = calculateYearlyRevenueAfterSalary(revenueAfterTax);
+        String farmProfit = calculateChanceBuyNewFarms(revenueAfterSalary);
+        return farmProfit;
+    }
+
+    public String calculateChanceBuyNewFarms(float revenue) {
+        String farmsNumber;
+        int farmsNumb = (int) (revenue / farmPrice);
+        if (farmsNumb > 3) {
+            System.out.println("You can buy " + farmsNumb + " farms.");
+            farmsNumber = "SUPER PROFITABLE";
+        } else if (farmsNumb >= 1) {
+            System.out.println("You can buy " + farmsNumb + " farms.");
+            farmsNumber = "PROFITABLE";
+        } else {
+            System.out.println("You can not buy farms.");
+            farmsNumber = "NOT PROFITABLE";
+        }
+        System.out.println(farmsNumber);
+        return farmsNumber;
+    }
+
+    public float calculateYearlyRevenueAfterSalary(float revenue) {
+        revenue -= revenue * percentSalaryToMilkmaids / 100;
+        return revenue;
+    }
+
+    public float calculateYearlyRevenueAfterTax(float revenue) {
+        revenue -= revenue * percentIncomeTax / 100;
+        return revenue;
+    }
+
+    public float calculateYearlyAllCowsRevenue() {
+        float revenue = cows.calculateYearlyCowRevenue() * numberOfCows;
+        return revenue;
+    }
+
+
+    protected boolean paramsLimitsChecking(int lowerLimit, int upperLimit, float parameter) {
+        if (parameter < lowerLimit || parameter > upperLimit) {
+            return false;
+        } else {
+            return true;
+        }
+    }
+
+    public String setFarmParams(float farmPrice, float percentIncomeTax, float percentSalaryToMilkmaids) {
+        String result;
+        if (paramsLimitsChecking(500, 1000, farmPrice)
+                && paramsLimitsChecking(10, 20, percentIncomeTax)
+                && paramsLimitsChecking(5, 10, percentSalaryToMilkmaids)) {
+            this.farmPrice = farmPrice;
+            this.percentIncomeTax = percentIncomeTax;
+            this.percentSalaryToMilkmaids = percentSalaryToMilkmaids;
+            result = "";
+        } else {
+            result = "INPUT PARAMS ARE INCORRECT.";
+            System.out.println(result);
+        }
+        return result;
+    }
+
+    public String setCowParams(int numberOfCows, float cowFoodConsumption, float cowFoodPrise,
+                               float cowMilkProduction, float cowMilkPrice) {
+        String result;
+        if (paramsLimitsChecking(50, 100, numberOfCows)
+                && paramsLimitsChecking(5, 10, cowFoodConsumption)
+                && paramsLimitsChecking(1, 3, cowFoodPrise)
+                && paramsLimitsChecking(1, 5, cowMilkProduction)
+                && paramsLimitsChecking(5, 10, cowMilkPrice)) {
+            this.cows.setCowFoodPrise(cowFoodPrise);
+            this.cows.setCowMilkPrice(cowMilkPrice);
+            this.cows.setCowMilkProduction(cowMilkProduction);
+            this.cows.setCowFoodConsumption(cowFoodConsumption);
+            this.numberOfCows = numberOfCows;
+            result = "";
+        } else {
+            result = "INPUT PARAMS ARE INCORRECT.";
+            System.out.println(result);
+        }
+        return result;
+    }
+
+    public float getFarmPrice() {
+        return farmPrice;
+    }
+
+    public float getPercentIncomeTax() {
+        return percentIncomeTax;
+    }
+
+    public float getPercentSalaryToMilkmaids() {
+        return percentSalaryToMilkmaids;
+    }
+
+    public int getNumberOfCows() {
+        return numberOfCows;
+    }
+}

AlexSubbotin/lesson_10/src/test/java/CowTest.java

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+import org.junit.Test;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.*;
+
+public class CowTest {
+
+        Farm farm = new Farm();
+
+        @Test
+        public void testCalculateYearlyCowRevenue() {
+            farm.setCowParams(50, 8f, 3f, 3f, 10f);
+            assertThat(farm.cows.calculateYearlyCowRevenue(), is(equalTo((3*10-8*3f)*365)));
+        }
+}