Merge 23da1dfc77d85fcde10211f97d65c5007f6c40f6 into 6026e5f68429fdeebffb1a314db6451e44f108c4

src/main/java/io/zipcoder/microlabs/mastering_loops/NumberUtilities.java

@@ -3,17 +3,43 @@ package io.zipcoder.microlabs.mastering_loops;
 
 public class NumberUtilities {
     public static String getEvenNumbers(int start, int stop) {
-        return null;
+        StringBuilder even = new StringBuilder();
+
+        if (start % 2 != 0) {
+            start += 1;
+        }
+
+
+        for (int i = start; i < stop; i += 2) {
+            even.append(i);
+        }
+        return even.toString();
     }
 
 
     public static String getOddNumbers(int start, int stop) {
-        return null;
+        StringBuilder odd = new StringBuilder();
+
+        if (start % 2 == 0) {
+            start -= 1;
+        }
+
+
+        for (int i = start; i < stop; i += 2) {
+            odd.append(i);
+        }
+        return odd.toString();
     }
 
 
     public static String getSquareNumbers(int start, int stop, int step) {
-        return null;
+        StringBuilder square = new StringBuilder();
+        for (int i = start; i < stop; i += step) {
+            int squarednum = (int) Math.pow(i, 2);
+            square.append(squarednum);
+
+        }
+        return square.toString();
     }
 
     public static String getRange(int start) {
@@ -26,11 +52,21 @@ public class NumberUtilities {
 
 
     public static String getRange(int start, int stop, int step) {
-        return null;
+        StringBuilder range = new StringBuilder();
+        for (int i = start; i < stop; i += step) {
+            range.append(i);
+        }
+        return range.toString();
     }
 
 
     public static String getExponentiations(int start, int stop, int step, int exponent) {
-        return null;
+        StringBuilder expo = new StringBuilder();
+        for (int i = start; i < stop; i += step) {
+            int exponentVariable = exponent;
+            int squarednum = (int) Math.pow(i, exponentVariable);
+            expo.append(squarednum);
+        }
+        return expo.toString();
     }
-}
+}

src/main/java/io/zipcoder/microlabs/mastering_loops/TableUtilities.java

@@ -2,14 +2,37 @@ package io.zipcoder.microlabs.mastering_loops;
 
 public class TableUtilities {
     public static String getSmallMultiplicationTable() {
-        return null;
+       StringBuilder sb = new StringBuilder();
+       for (int i = 1; i <=5; i++){
+           for (int j = 1; j <=5; j++){
+               sb.append(String.format("%3d |", i *j));
+           }
+           sb.append("\n");
+       }
+       return sb.toString();
     }
 
     public static String getLargeMultiplicationTable() {
-        return null;
+        StringBuilder sb = new StringBuilder();
+        for (int i = 1; i <=10; i++){
+            for (int j = 1; j <=10; j++){
+                sb.append(String.format("%3d |", i *j));
+            }
+            sb.append("\n");
+        }
+        return sb.toString();
     }
 
+
     public static String getMultiplicationTable(int tableSize) {
-        return null;
+        StringBuilder sb = new StringBuilder();
+        for (int i = 1; i <=tableSize; i++){
+            for (int j = 1; j <=tableSize; j++){
+                sb.append(String.format("%3d |", i *j));
+            }
+            sb.append("\n");
+        }
+        return sb.toString();
+    }
     }
-}
+

src/main/java/io/zipcoder/microlabs/mastering_loops/TriangleUtilities.java

@@ -3,18 +3,43 @@ package io.zipcoder.microlabs.mastering_loops;
 public class TriangleUtilities {
 
     public static String getTriangle(int numberOfRows) {
-        return null;
+        String output = "";
+        for (int i = 1; i < numberOfRows; i++){
+            for (int j = 0; j < i; j++){
+                output += "*";
+            }
+            output += '\n';
+        }
+        return output;
     }
 
     public static String getRow(int numberOfStars) {
-        return null;
+        String output = "";
+        for (int i = 0; i < numberOfStars; i++){
+            output += "*";
+        }
+        return output;
     }
 
     public static String getSmallTriangle() {
-        return null;
+        String output = "";
+        for (int i = 1; i <=4; i++){
+    for (int j = 0; j < i; j++){
+        output += "*";
+    }
+    output += '\n';
+        }
+        return output;
     }
 
     public static String getLargeTriangle() {
-        return null;
+        String output = "";
+        for (int i = 1; i <=9; i++){
+            for (int j = 0; j < i; j++){
+                output += "*";
+            }
+            output += '\n';
+        }
+        return output;
     }
 }

src/test/java/io/zipcoder/microlabs/mastering_loops/NumberUtilitiesTest.java

@@ -173,7 +173,7 @@ public class NumberUtilitiesTest {
     @Test
     public void testGetEvenNumbers() {
         // : Given
-        String expected = "5791113151719";
+        String expected = "681012141618";
         int start = 5;
         int stop = 20;
 
@@ -187,7 +187,7 @@ public class NumberUtilitiesTest {
     @Test
     public void testGetOddNumbers() {
         // : Given
-        String expected = "681012141618";
+        String expected = "5791113151719";
         int start = 5;
         int stop = 20;
         int step = 5;