diff --git a/java/src/main/java/io/zipcoder/microlabs/mastering_loops/NumberUtilities.java b/java/src/main/java/io/zipcoder/microlabs/mastering_loops/NumberUtilities.java
index a0c6b1a..f8c26ad 100644
--- a/java/src/main/java/io/zipcoder/microlabs/mastering_loops/NumberUtilities.java
+++ b/java/src/main/java/io/zipcoder/microlabs/mastering_loops/NumberUtilities.java
@@ -2,40 +2,85 @@
 
 
 public class NumberUtilities {
+                           
+    public static String getExponentiations(int start, int stop, int step, int exponent)  {
+        String result = "";
+        for (int i = start; i < stop; i += step) {
+            int outcome = (int)Math.pow(i, exponent);
+            result = result + outcome;
 
-    public static String getExponentiations(int start, int stop, int step, int exponent) {
-        return null;
+        }
+        return result;
     }
 
+
     public static String getRange(int start, int stop, int step) {
-        return null;
+        String result = "";
+        for (int i = start; i < stop; i  += step) {
+            result = result + i;
+            System.out.println(result);
+        }
+        return result;
     }
 
     public static String getRange(int start, int stop) {
-        return null;
+         String result = "";
+        for (int i = start; i < stop; i++) {
+            result = result + i;
+        
+        }
+        return result; // getRange(start, stop, step;1));
     }
 
     public static String getRange(int stop) {
-        return null;
+        String result = "";
+        for (int i = 0; i < stop; i++) {
+            result = result + i;
+        }
+        return result; // getRange(start:0, stop, step:1);
     }
 
     /*
      * natural break
      */
 
-    public static boolean isNumberEven(int toTest) { return false; }
-    public static boolean isNumberOdd(int toTest) { return false; }
+    public static boolean isNumberEven(int toTest) { return toTest % 2 == 0; }
+    public static boolean isNumberOdd(int toTest) { return toTest % 2 != 0; }
 
     public static String getEvenNumbers(int start, int stop) {
-        return null;
+
+        
+        String result = "";
+
+        for (int i = start; i < stop; i++) {
+            if (i % 2 == 0) {
+            result += i;
+        }
+        
+    }
+    return result;
     }
 
     public static String getOddNumbers(int start, int stop) {
-        return null;
+        String result = "";
+
+        for (int i = start; i < stop; i++) {
+            if (i % 2 != 0) {
+                result += i;
+            }
+
+        }
+        return result;
     }
 
     public static String getSquareNumbers(int start, int stop, int step) {
-        return null;
+        String result = "";
+        for (int i = start; i < stop; i += step) {
+            result = result + (i * i);
+
+        
+    }
+    return result;
     }
 
 }
diff --git a/java/src/main/java/io/zipcoder/microlabs/mastering_loops/TableUtilities.java b/java/src/main/java/io/zipcoder/microlabs/mastering_loops/TableUtilities.java
index 7276d17..91c5909 100644
--- a/java/src/main/java/io/zipcoder/microlabs/mastering_loops/TableUtilities.java
+++ b/java/src/main/java/io/zipcoder/microlabs/mastering_loops/TableUtilities.java
@@ -2,14 +2,21 @@
 
 public class TableUtilities {
     public static String getMultiplicationTable(int tableSize) {
-        return null;
+        String result = "";
+        for (int i = 1; i <= tableSize; i++) { // Loop for the row, i = row
+            for (int j = 1; j <= tableSize; j++) { // Loop for column, j = column
+                result += String.format("%3d |", i * j); // %d means print number. 3 notes the amount of space
+            }
+            result += "\n"; //new line after each row
+        }
+    return result;
     }
 
     public static String getSmallMultiplicationTable() {
-        return null;
+        return getMultiplicationTable(5);
     }
 
     public static String getLargeMultiplicationTable() {
-        return null;
+        return getMultiplicationTable(10);
     }
 }
diff --git a/java/src/main/java/io/zipcoder/microlabs/mastering_loops/TriangleUtilities.java b/java/src/main/java/io/zipcoder/microlabs/mastering_loops/TriangleUtilities.java
index 6e2f6a1..0629ae7 100644
--- a/java/src/main/java/io/zipcoder/microlabs/mastering_loops/TriangleUtilities.java
+++ b/java/src/main/java/io/zipcoder/microlabs/mastering_loops/TriangleUtilities.java
@@ -3,20 +3,31 @@
 public class TriangleUtilities {
 
     public static String getRow(int numberOfStars) {
-        return null;
+        String result = "";
+        int i = 1;
+        while (i <= numberOfStars) {
+            result = result + "*";
+            i++;
+        }
+        return result;
     }
 
     public static String getTriangle(int numberOfRows) {
-        return null;
+        String result = "";
+        int i = 1;
+        while (i < numberOfRows) {
+            result = result + getRow(i) + "\n";
+            i++;
+        }
+        return result;
     }
 
-    // hmm
     
     public static String getSmallTriangle() {
-        return null;
+        return getTriangle(5);
     }
 
     public static String getLargeTriangle() {
-        return null;
+        return getTriangle(10);
     }
 }
diff --git a/java/src/test/java/io/zipcoder/microlabs/mastering_loops/NumberUtilitiesTest.java b/java/src/test/java/io/zipcoder/microlabs/mastering_loops/NumberUtilitiesTest.java
index ad72c76..8333269 100644
--- a/java/src/test/java/io/zipcoder/microlabs/mastering_loops/NumberUtilitiesTest.java
+++ b/java/src/test/java/io/zipcoder/microlabs/mastering_loops/NumberUtilitiesTest.java
@@ -184,7 +184,7 @@ public void testGetRange3C() {
     @Test
     public void testGetEvenNumbers() {
         // : Given
-        String expected = "5791113151719";
+        String expected = "681012141618"; //681012141618
         int start = 5;
         int stop = 20;
 
@@ -198,7 +198,7 @@ public void testGetEvenNumbers() {
     @Test
     public void testGetOddNumbers() {
         // : Given
-        String expected = "681012141618";
+        String expected = "5791113151719"; //5791113151719
         int start = 5;
         int stop = 20;
         int step = 5;
diff --git a/java/src/test/java/io/zipcoder/microlabs/mastering_loops/TriangleUtilitiesTest.java b/java/src/test/java/io/zipcoder/microlabs/mastering_loops/TriangleUtilitiesTest.java
index 1f3db6a..d4a0655 100644
--- a/java/src/test/java/io/zipcoder/microlabs/mastering_loops/TriangleUtilitiesTest.java
+++ b/java/src/test/java/io/zipcoder/microlabs/mastering_loops/TriangleUtilitiesTest.java
@@ -13,14 +13,14 @@ public void getRow() {
         String actual = TriangleUtilities.getRow(width);
         Assert.assertEquals(expected, actual);
     }
-
+    @Test
     public void getRow3() {
         String expected = "***";
         int width = 3;
         String actual = TriangleUtilities.getRow(width);
         Assert.assertEquals(expected, actual);
     }
-
+    @Test
     public void getRow5() {
         String expected = "*****";
         int width = 5;