Zipcoder · Basgolfer · Dec 4, 2017
diff --git a/pom.xml b/pom.xml
@@ -7,6 +7,18 @@
     <groupId>io.zipcoder</groupId>
     <artifactId>InterviewProblem5</artifactId>
     <version>1.0-SNAPSHOT</version>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>1.7</source>
+                    <target>1.7</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 
     <dependencies>
         <!-- https://mvnrepository.com/artifact/junit/junit -->

diff --git a/src/main/java/io/zipcoder/Problem6.java b/src/main/java/io/zipcoder/Problem6.java
@@ -1,4 +1,156 @@
 package io.zipcoder;
 
+import java.util.ArrayList;
+
 public class Problem6 {
+
+    private ArrayList<String> hoursArrayList = new ArrayList<>();
+    private ArrayList<String> minutesArrayList = new ArrayList<>();
+
+    public Problem6() {
+        populateHours();
+        populateMinutes();
+    }
+
+    public String convertToMilitaryTime(String input) {
+        String militaryTime = "";
+
+        boolean isPm = checkIfPm(input);
+        Integer hours = getHours(input);
+        Integer minutes = getMinutes(input);
+
+        militaryTime += convertHoursToString(hours, isPm);
+        militaryTime += " Hundred ";
+        militaryTime += convertMinutesToString(minutes);
+        militaryTime += " Hours";
+
+        return militaryTime;
+    }
+
+    public boolean checkIfPm(String input) {
+        input = input.toLowerCase();
+        return input.contains("pm");
+    }
+
+    public Integer getHours(String input) throws NumberFormatException{
+        String[] splitAtColon = input.split(":");
+        String hoursString = splitAtColon[0];
+        return verifyValidInput(hoursString);
+    }
+
+    public Integer getMinutes(String input) throws NumberFormatException {
+        String[] splitAtColon = input.split(":");
+        String minutesString = splitAtColon[1].substring(0,2);
+        return verifyValidInput(minutesString);
+    }
+
+    public Integer verifyValidInput(String input) throws  NumberFormatException {
+        Integer returnInteger;
+        try {
+            returnInteger = Integer.parseInt(input);
+            return returnInteger;
+        }
+        catch (NumberFormatException e) {
+            throw new NumberFormatException();
+        }
+    }
+
+    public void populateHours() {
+        hoursArrayList.add("Nothing");
+        hoursArrayList.add("One");
+        hoursArrayList.add("Two");
+        hoursArrayList.add("Three");
+        hoursArrayList.add("Four");
+        hoursArrayList.add("Five");
+        hoursArrayList.add("Six");
+        hoursArrayList.add("Seven");
+        hoursArrayList.add("Eight");
+        hoursArrayList.add("Nine");
+        hoursArrayList.add("Ten");
+        hoursArrayList.add("Eleven");
+        hoursArrayList.add("Twelve");
+        hoursArrayList.add("Thirteen");
+        hoursArrayList.add("Fourteen");
+        hoursArrayList.add("Fifteen");
+        hoursArrayList.add("Sixteen");
+        hoursArrayList.add("Seventeen");
+        hoursArrayList.add("Eighteen");
+        hoursArrayList.add("Nineteen");
+        hoursArrayList.add("Twenty");
+        hoursArrayList.add("Twenty One");
+        hoursArrayList.add("Twenty Two");
+        hoursArrayList.add("Twenty Three");
+        hoursArrayList.add("Twenty Four");
+    }
+
+    public void populateMinutes() {
+        for (String hour : hoursArrayList) {
+            minutesArrayList.add(hour);
+        }
+        minutesArrayList.add("Twenty Five");
+        minutesArrayList.add("Twenty Six");
+        minutesArrayList.add("Twenty Seven");
+        minutesArrayList.add("Twenty Eight");
+        minutesArrayList.add("Twenty Nine");
+        minutesArrayList.add("Thirty");
+        minutesArrayList.add("Thirty One");
+        minutesArrayList.add("Thirty Two");
+        minutesArrayList.add("Thirty Three");
+        minutesArrayList.add("Thirty Four");
+        minutesArrayList.add("Thirty Five");
+        minutesArrayList.add("Thirty Six");
+        minutesArrayList.add("Thirty Seven");
+        minutesArrayList.add("Thirty Eight");
+        minutesArrayList.add("Thirty Nine");
+        minutesArrayList.add("Forty");
+        minutesArrayList.add("Forty One");
+        minutesArrayList.add("Forty Two");
+        minutesArrayList.add("Forty Three");
+        minutesArrayList.add("Forty Four");
+        minutesArrayList.add("Forty Five");
+        minutesArrayList.add("Forty Six");
+        minutesArrayList.add("Forty Seven");
+        minutesArrayList.add("Forty Eight");
+        minutesArrayList.add("Forty Nine");
+        minutesArrayList.add("Fifty");
+        minutesArrayList.add("Fifty One");
+        minutesArrayList.add("Fifty Two");
+        minutesArrayList.add("Fifty Three");
+        minutesArrayList.add("Fifty Four");
+        minutesArrayList.add("Fifty Five");
+        minutesArrayList.add("Fifty Six");
+        minutesArrayList.add("Fifty Seven");
+        minutesArrayList.add("Fifty Eight");
+        minutesArrayList.add("Fifty Nine");
+    }
+
+    public ArrayList<String> getHoursArrayList() {
+        return hoursArrayList;
+    }
+
+    public ArrayList<String> getMinutesArrayList() {
+        return minutesArrayList;
+    }
+
+    public String convertHoursToString(Integer hour, boolean isPm) {
+        String hours = "";
+        if (!isPm && hour < 10) {
+            hours += "Zero ";
+        }
+        if (isPm) {
+            return hours + hoursArrayList.get(hour + 12);
+        }
+        return hours + hoursArrayList.get(hour);
+    }
+
+    public String convertMinutesToString(Integer minute) {
+        String minutes = "";
+        if (minute < 10) {
+            minutes += "Zero ";
+        }
+        else {
+            minutes += "and ";
+        }
+        return minutes + minutesArrayList.get(minute);
+    }
 }
diff --git a/src/test/java/io/zipcoder/Problem6Test.java b/src/test/java/io/zipcoder/Problem6Test.java
@@ -1,4 +1,146 @@
 package io.zipcoder;
 
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
 public class Problem6Test {
+
+    Problem6 problem6;
+
+    @Before
+    public void setUp() {
+        problem6 = new Problem6();
+    }
+
+    @Test
+    public void convertToMilitaryTimeTest_Input130pm() {
+        String input = "1:30pm";
+        String expected = "Thirteen Hundred and Thirty Hours";
+        String actual = problem6.convertToMilitaryTime(input);
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void convertToMilitaryTimeTest_Input130am() {
+        String input = "1:30am";
+        String expected = "Zero One Hundred and Thirty Hours";
+
+        String actual = problem6.convertToMilitaryTime(input);
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void convertToMilitaryTimeTest_Input222pm() {
+        String input = "2:22pm";
+        String expected = "Fourteen Hundred and Twenty Two Hours";
+
+        String actual = problem6.convertToMilitaryTime(input);
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void convertToMilitaryTimeTest_Input211am() {
+        String input = "2:11am";
+        String expected = "Zero Two Hundred and Eleven Hours";
+
+        String actual = problem6.convertToMilitaryTime(input);
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void convertToMilitaryTimeTest_Input1002am() {
+        String input = "10:02am";
+        String expected = "Ten Hundred Zero Two Hours";
+
+        String actual = problem6.convertToMilitaryTime(input);
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void checkIfPmTest_expectedTrue() {
+        String input = "1:30pm";
+        Assert.assertTrue(problem6.checkIfPm(input));
+    }
+
+    @Test
+    public void checkIfPmTest_expectedFalse() {
+        String input = "5:30am";
+        Assert.assertFalse(problem6.checkIfPm(input));
+    }
+
+    @Test
+    public void getHoursTest_expected1() {
+        String input = "1:30pm";
+        Integer expected = 1;
+        Integer actual = problem6.getHours(input);
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test (expected = NumberFormatException.class)
+    public void verifyValidInputTestFromGetHours_ExpectedNumberFormatException() {
+        String input = "Tariq:30pm";
+        Integer actual = problem6.getHours(input);
+    }
+
+    @Test
+    public void getMinutesTest_expected30() {
+        String input = "1:30pm";
+        Integer expected = 30;
+        Integer actual = problem6.getMinutes(input);
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test (expected = NumberFormatException.class)
+    public void verifyValidInputTestFromGetMinutes_expectedNumberFormatException() {
+        String input = "1:lolpm";
+        Integer actual = problem6.getMinutes(input);
+    }
+
+    @Test
+    public void testPopulateHours_ExpectedSize25() {
+        int expected = 25;
+        int actual = problem6.getHoursArrayList().size();
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testPopulateMinutes_ExpectedSize60() {
+        int expected = 60;
+        int actual = problem6.getMinutesArrayList().size();
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void convertHoursToString_expectedFourteen() {
+        String input = "2:30pm";
+        String expected = "Fourteen";
+
+        Integer hours = problem6.getHours(input);
+
+        boolean isPm = problem6.checkIfPm(input);
+
+        String actual = problem6.convertHoursToString(hours, isPm);
+
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void convertMinutesToString_expectedThirty() {
+        String input = "2:30pm";
+        String expected = "and Thirty";
+
+        Integer minutes = problem6.getMinutes(input);
+
+        String actual = problem6.convertMinutesToString(minutes);
+
+        Assert.assertEquals(expected, actual);
+    }
+
 }