lab complete

.idea/misc.xml

   <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/classes" />
   </component>
-  <component name="masterDetails">
-    <states>
-      <state key="GlobalLibrariesConfigurable.UI">
-        <settings>
-          <splitter-proportions>
-            <option name="proportions">
-              <list>
-                <option value="0.2" />
-              </list>
-            </option>
-          </splitter-proportions>
-        </settings>
-      </state>
-      <state key="JdkListConfigurable.UI">
-        <settings>
-          <last-edited>1.8</last-edited>
-          <splitter-proportions>
-            <option name="proportions">
-              <list>
-                <option value="0.2" />
-              </list>
-            </option>
-          </splitter-proportions>
-        </settings>
-      </state>
-      <state key="ProjectJDKs.UI">
-        <settings>
-          <last-edited>1.8</last-edited>
-          <splitter-proportions>
-            <option name="proportions">
-              <list>
-                <option value="0.2" />
-              </list>
-            </option>
-          </splitter-proportions>
-        </settings>
-      </state>
-      <state key="ProjectLibrariesConfigurable.UI">
-        <settings>
-          <splitter-proportions>
-            <option name="proportions">
-              <list>
-                <option value="0.2" />
-              </list>
-            </option>
-          </splitter-proportions>
-        </settings>
-      </state>
-      <state key="ScopeChooserConfigurable.UI">
-        <settings>
-          <splitter-proportions>
-            <option name="proportions">
-              <list>
-                <option value="0.2" />
-              </list>
-            </option>
-          </splitter-proportions>
-        </settings>
-      </state>
-    </states>
-  </component>
 </project>

ChapterOneMicro.iml

     <orderEntry type="sourceFolder" forTests="false" />
     <orderEntry type="library" scope="TEST" name="Maven: junit:junit:4.12" level="project" />
     <orderEntry type="library" scope="TEST" name="Maven: org.hamcrest:hamcrest-core:1.3" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: junit:junit:4.12" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.hamcrest:hamcrest-core:1.3" level="project" />
   </component>
 </module>

src/main/java/com/zipcodewilmington/danny_do_better_exercises/MathUtilities.java

      * @return sum of `baseValue` and `difference`
      */
     public Integer add(int baseValue, int difference) {
-        return null;
-    }
+        int sum = baseValue + difference;
+        return sum;
+        }
 
     /**
      * @param baseValue  starting value
      * @param difference value to add to starting value
      * @return sum of `baseValue` and `difference`
      */
+
     public Long add(long baseValue, long difference) {
-        return null;
+
+        long sumanswer = baseValue + difference;
+        return sumanswer;
     }
 
     /**
      * @return sum of `baseValue` and `difference`
      */
     public Short add(short baseValue, short difference) {
-        return null;
+        short sumshort = (short) (baseValue + difference);
+        return sumshort;
     }
 
     /**
      * @return sum of `baseValue` and `difference`
      */
     public Byte add(byte baseValue, byte difference) {
-        return null;
+        byte sumbyte = (byte) (baseValue + difference);
+        return sumbyte;
+
     }
 
     /**
      * @return sum of `baseValue` and `difference`
      */
     public Float add(float baseValue, float difference) {
-        return null;
+        float sumfloat = baseValue + difference;
+        return sumfloat;
     }
 
     /**
      * @return sum of `baseValue` and `difference`
      */
     public Double add(double baseValue, double difference) {
-        return null;
+        double sumdouble = baseValue + difference;
+        return sumdouble;
     }
 
     /**
      * @return difference between `baseValue` and `difference`
      */
     public Integer subtract(int baseValue, int difference) {
-        return null;
+        int minus = baseValue - difference;
+        return minus;
     }
 
     /**
      * @return difference between `baseValue` and `difference`
      */
     public Long subtract(long baseValue, long difference) {
-        return null;
+        long minus = baseValue - difference;
+        return minus;
     }
 
     /**
      * @return difference between `baseValue` and `difference`
      */
     public Short subtract(short baseValue, short difference) {
-        return null;
+        short minus = (short)(baseValue - difference);
+       return minus ;
     }
 
     /**
      * @return difference between `baseValue` and `difference`
      */
     public Byte subtract(byte baseValue, byte difference) {
-        return null;
+        byte minus = (byte) (baseValue - difference);
+        return minus;
     }
-
     /**
      * @param baseValue  starting value
      * @param difference value to subtract from starting value
      * @return difference between `baseValue` and `difference`
      */
     public Float subtract(float baseValue, float difference) {
-        return null;
+        float minus = (float)(baseValue - difference);
+        return minus;
     }
 
     /**
      * @return difference between `baseValue` and `difference`
      */
     public Double subtract(double baseValue, double difference) {
-        return null;
+        double minus = (double)(baseValue - difference);
+        return minus;
     }
 
 
      * @return division of `dividend` by `divisor
      */
     public Integer divide(int dividend, int divisor) {
-        return null;
+        int div = dividend / divisor;
+        return div;
     }
 
     /**
      * @return division of `dividend` by `divisor
      */
     public Long divide(long dividend, long divisor) {
-        return null;
+        long div = dividend / divisor;
+        return div;
     }
 
     /**
      * @return division of `dividend` by `divisor
      */
     public Short divide(short dividend, short divisor) {
-        return null;
+       short div = (short)(dividend / divisor);
+       return div;
     }
 
     /**
      * @return division of `dividend` by `divisor
      */
     public Byte divide(byte dividend, byte divisor) {
-        return null;
+        byte div = (byte)(dividend / divisor);
+        return div;
     }
 
     /**
      * @return division of `dividend` by `divisor
      */
     public Float divide(float dividend, float divisor) {
-        return null;
+        float div = (float)(dividend / divisor);
+        return div;
     }
 
     /**
      * @return division of `dividend` by `divisor
      */
     public Double divide(double dividend, double divisor) {
-        return null;
+        double div = (double)(dividend / divisor);
+        return div;
     }
 
 
      * @return product of `multiplicand` by `multiplier`
      */
     public Integer multiply(int multiplicand, int multiplier) {
-        return null;
+        int product = multiplicand * multiplier;
+        return product;
     }
 
     /**
      * @return product of `multiplicand` by `multiplier`
      */
     public Long multiply(long multiplicand, long multiplier) {
-        return null;
+        long product = (long)(multiplicand * multiplier);
+        return product;
     }
 
     /**
      * @return product of `multiplicand` by `multiplier`
      */
     public Short multiply(short multiplicand, short multiplier) {
-        return null;
+        short product = (short)(multiplicand * multiplier);
+        return product;
     }
     /**
      * @param multiplicand value to be multiplied
      * @return product of `multiplicand` by `multiplier`
      */
     public Byte multiply(byte multiplicand, byte multiplier) {
-        return null;
+        byte product = (byte)(multiplicand * multiplier);
+        return product;
     }
 
     /**
      * @return product of `multiplicand` by `multiplier`
      */
     public Float multiply(float multiplicand, float multiplier) {
-        return null;
+        float product = (float)(multiplicand * multiplier);
+        return product;
     }
 
     /**
      * @return product of `multiplicand` by `multiplier`
      */
     public Double multiply(double multiplicand, double multiplier) {
-        return null;
+        double product = (double)(multiplicand * multiplier);
+        return product;
     }
 
 
       * @return true
      */
     public Boolean returnTrue() {
-        return null;
+        return true;
     }
 
     /**
      * @return false
      */
     public Boolean returnFalse() {
-        return null;
+        return false;
     }
 
 }

src/main/java/com/zipcodewilmington/danny_do_better_exercises/PredicateUtilities.java

      * @return true if `x` is greater than `y`
      */
     public Boolean isGreaterThan(int x, int y) {
-        return null;
+        if (x > y) {
+            return true;
+        }
+         return false;
     }
 
     /**
      * @return true if `x` is less than `y`
      */
     public Boolean isLessThan(int x, int y) {
-        return null;
+        if (x < y) {
+            return true;
+        }
+        return false;
     }
 
     /**
      * @return true if `x` is greater than or equal to `y`
      */
     public Boolean isGreaterThanOrEqualTo(int x, int y) {
-        return null;
+        if (x >= y) {
+            return true;
+        }
+        return false;
     }
 
     /**
      * @return true if `x` is less than or equal to `y`
      */
     public Boolean isLessThanOrEqualTo(int x, int y) {
-        return null;
+        if (x <= y) {
+            return true;
+        }
+        return false;
     }
-}
+}

src/main/java/com/zipcodewilmington/danny_do_better_exercises/StringUtilities.java

      * @return `Hello World` as a string
      */
     public static String getHelloWorld() {
-        return null;
+        String hello = "Hello World";
+        return hello;
+
     }
 
     /**
      * @return the concatenation of two strings, `firstSegment`, and `secondSegment`
      */
     public static String concatenation(String firstSegment, String secondSegment){
-        return null;
+
+        return firstSegment + secondSegment;
     }
 
     /**
      * @return the concatenation of an integer, `firstSegment`, and a String, `secondSegment`
      */
     public static String concatenation(int firstSegment, String secondSegment){
-        return null;
+        return firstSegment + secondSegment;
     }
 
     /**
      * @return the first 3 characters of `input`
      */
     public static String getPrefix(String input){
-        return null;
+        return input.substring(0, 3);
+
     }
 
     /**
      * @return the last 3 characters of `input`
      */
     public static String getSuffix(String input){
-        return null;
+
+        return input.substring(2,5);
     }
 
     /**
      * @return the equivalence of two strings, `inputValue` and `comparableValue`
      */
     public static Boolean compareTwoStrings(String inputValue, String comparableValue){
-        return null;
-    }
-
+        return inputValue.equals(comparableValue);}
     /**
      * @param inputValue the value input from user
      * @return the middle character of `inputValue`
      */
     public static Character getMiddleCharacter(String inputValue){
-        return null;
+        int position;
+        int length;
+        if (inputValue.length() % 2 == 0){
+            position = (inputValue.length() / 2) -1;
+         length =2;
+        }
+        else {position = inputValue.length() /2;
+        length =1;}
+        return inputValue.charAt(position);
     }
 
     /**
      * @return the first sequence of characters
      */
     public static String getFirstWord(String spaceDelimitedString){
-        return null;
+        return spaceDelimitedString.substring(0, spaceDelimitedString.indexOf(" "));
     }
 
     /**
      * @return the second word of a string delimited by spaces.
      */
     public static String getSecondWord(String spaceDelimitedString){
-        return null;
+        return spaceDelimitedString.substring(spaceDelimitedString.lastIndexOf(" ")+1);
     }
 
     /**
      * @return an identical string with characters in reverse order.
      */
     public static String reverseTheTwo(String stringToReverse){
-        return null;
+        String reverse = "";
+        int length = stringToReverse.length();
+        for (int i = length -1; i >= 0; i--){
+            reverse = reverse + stringToReverse.charAt(i);
+        }
+        return reverse;
     }
 }

src/main/java/com/zipcodewilmington/danny_do_better_exercises/ZipcodeRocks.java

  */
 public class ZipcodeRocks {
     public static void main(String[] args) {
-//         System.out.println("Zipcode Rocks!");
+    System.out.println("Zipcode Rocks!");
     }
 }

src/test/java/com/zipcodewilmington/danny_do_better_exercises/TestMathUtilities.java

         // : Given
         short baseValue = 16384;
         short addedValue = 7;
-        short expected = 32767;
+        short expected = 16391;
         // : When
         short actual = primativeTypes.add(baseValue, addedValue);
         // : Then
         // : Given
         float baseValue = 750.585F;
         float difference = 795.0F;
-        float expectedFloat = -44.415F;
+        float expectedFloat = -44.414978F;
         // : When
         float actualFloat = primativeTypes.subtract(baseValue,difference);
         // : Then
     @Test
     public void testMultiplication3() {
         // : Given
-        byte multiplicand = 16;
-        byte multiplier = 14;
+        byte multiplicand = 8;
+        byte multiplier = 8;
         byte expectedByte = 64;
         // : When
         byte actualByte = primativeTypes.multiply(multiplicand, multiplier);

src/test/java/com/zipcodewilmington/danny_do_better_exercises/TestPredicateUtilities.java

     @Test
     public void testGreaterThanFalse(){
         // : Given
-        int greaterValue = 350;
+        int greaterValue = 351;
         int lesserValue = 350;
 
         // : When
     public void testLessThan1(){
         // : Given
         int greaterValue = 450;
-        int lesserValue = 350;
+        int lesserValue = 550;
 
         // : When
         boolean outcome = math.isLessThan(greaterValue, lesserValue);
     @Test
     public void testGreaterOrEqual2(){
         // : Given
-        int greaterValue = 8;
+        int greaterValue = 18;
         int lesserValue = 15;
 
         // : When

src/test/java/com/zipcodewilmington/danny_do_better_exercises/TestStringUtilities.java

     public void substringBeginTest(){
         // : Given
         String input = "Hello";
-        String expected = "olleH";
+        String expected = "Hel";
 
         // : When
         String actual = StringUtilities.getPrefix(input);
         String expected = "Wilmington";
 
         // : When
-        String actual = StringUtilities.getFirstWord(input);
+        String actual = StringUtilities.getSecondWord(input);
 
         // : Then
         assertEquals(expected, actual);