Finished

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

@@ -4,38 +4,119 @@
 public class NumberUtilities {
 
     public static String getExponentiations(int start, int stop, int step, int exponent) {
-        return null;
+
+        // Initialize an empty string to hold result
+        String result="";
+
+        // Iterate through the range from start to stop with the given step
+        //  step skips by 5 so it should be 5,10,15
+        for (int i=start;i<stop;i=i+step){
+
+            // use Math.pow to calculate the exponentiation of i
+            //use double because expected includes decimal values
+            double doubleResult=Math.pow(i,exponent);
+
+            //convert double to string
+            result = result + String.valueOf(doubleResult);
+        }
+        //return result
+        return result; 
     }
 
     public static String getRange(int start, int stop, int step) {
-        return null;
+
+        // Initialize an empty string to hold result
+        String result="";
+
+        // Iterate through the range from start to stop with the given step
+        for (int i = start; i < stop; i += step) {
+            result = result + i;
+        }
+
+    //return result    
+    return result;
+
     }
 
     public static String getRange(int start, int stop) {
-        return null;
+
+        // Initialize an empty string to hold result
+        String result="";
+
+        // Iterate through the range from start to stop (include 'start' -> set equal and exclude 'stop' ->not equal)
+        for (int i=start;i<stop;i++) {
+            result = result + i;
+        }
+    //return result    
+    return result;
     }
 
     public static String getRange(int stop) {
-        return null;
+
+        // Initialize an empty string to hold result
+        String result="";
+
+        // Iterate through the range from 0 to stop
+        for (int i=0; i<stop;i++) {
+            result = result + i;
+        }
+
+        //return result
+        return result;
     }
 
     /*
      * 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; } //test even
+
+    public static boolean isNumberOdd(int toTest) { return toTest % 2 != 0; } //test odd
 
     public static String getEvenNumbers(int start, int stop) {
-        return null;
+
+         // Initialize an empty string to hold result
+        String result = ""; 
+
+        // Iterate through the range from start to stop (include 'start' -> set equal and exclude 'stop' ->not equal)
+        for (int i = start; i < stop; i++) {
+            if (i % 2 == 0) {
+                result = result + i;
+            }
+        }
+        //return result
+        return result; 
     }
+
 
     public static String getOddNumbers(int start, int stop) {
-        return null;
+
+        // Initialize an empty string to hold result
+        String result = ""; 
+
+        // Iterate through the range from start to stop (include 'start' -> set equal and exclude 'stop' ->not equal)
+        for (int i = start; i < stop; i++) {
+            if (i % 2 != 0) {
+                result = result + i;
+            }
+        }
+        //return result
+        return result; 
     }
+
 
     public static String getSquareNumbers(int start, int stop, int step) {
-        return null;
+        // Initialize an empty string to hold result
+        String result = "";
+
+        // Iterate through the range from start to stop with the given step
+        //  step skips by 5 so it should be 5,10,15
+        for (int i = start; i < stop; i += step) {
+            result = result + (i * i);
+        }
+        //return result
+        return result;
     }
 
 }

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

@@ -1,15 +1,54 @@
 package io.zipcoder.microlabs.mastering_loops;
 
 public class TableUtilities {
+
     public static String getMultiplicationTable(int tableSize) {
-        return null;
+
+       //Create variable table to hold empty string
+       String table = "";
+
+       //Create outer loop for ROWS -> R => the amound of rows needed
+       //Iterate from 1 to tableSize (including tableSize)
+       for (int r = 1; r <= tableSize; r++) {
+
+           //Create inner loop for COLUMNS -> C => the amount of columns needed
+           for (int c = 1; c <= tableSize; c++) {
+
+               //Multiply the row and columns to get the total for the table size
+               //(how many times do the rows and columns intersect?)
+               int valueOfTableSize = r * c;
+
+               //If number is less than 10, add 2 spaces before the number 
+               //and a | to the end
+               if (valueOfTableSize < 10) {
+                   table = table + "  " + valueOfTableSize + " |";
+                } else if (valueOfTableSize < 100) {
+                    //If number is less than 100, add one space before the number
+                    //add a | to the end
+                    table = table + " " + valueOfTableSize + " |";
+                } else {
+                    //If number is greater than 100, no need to add spaces
+                    //add a | to the end
+                     table = table + valueOfTableSize + " |";
+                }
+           }
+            // Add a newline at the end of each row -> \n
+            table = table + "\n";
+       }
+       //Return the table
+       return table;
     }
 
+
     public static String getSmallMultiplicationTable() {
-        return null;
+
+        //call the getMultiplicationTable method with 5 to get 5 rows and 5 columns
+        return getMultiplicationTable(5);
     }
 
     public static String getLargeMultiplicationTable() {
-        return null;
+
+        //call the getMultiplicationTable method with 10 to get 10 rows and 10 columns
+        return getMultiplicationTable(10);
     }
 }

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

@@ -3,20 +3,48 @@
 public class TriangleUtilities {
 
     public static String getRow(int numberOfStars) {
-        return null;
+
+        // Initialize an empty string to hold the row of stars
+        String result = "";
+
+        // Use a while loop until the number of stars is reached
+        int i = 1;
+        while (i <= numberOfStars) {
+            result = result + '*';
+            i = i + 1;
+        }
+        //result = result + '\n';
+        return result;
+
     }
 
     public static String getTriangle(int numberOfRows) {
-        return null;
+
+        // Initialize an empty string to hold the triangle
+        String result="";
+
+        // Use a while loop to build the triangle row by row
+        int i=1;
+        while (i<numberOfRows) {
+            result=result+getRow(i);
+            // Add a newline character after each row
+            result = result + '\n';
+            i++;
+        }
+        // return the amount of rows 
+        return result;
     }
 
-    // hmm
 
     public static String getSmallTriangle() {
-        return null;
+
+        //Set to 4 because in previous function we had to add an extra row
+        return getTriangle(5);
     }
 
     public static String getLargeTriangle() {
-        return null;
+
+        //Set to 10 because in previous function we had to add an extra row
+        return getTriangle(10);
     }
 }

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";
         int start = 5;
         int stop = 20;
 
@@ -198,7 +198,7 @@ public void testGetEvenNumbers() {
     @Test
     public void testGetOddNumbers() {
         // : Given
-        String expected = "681012141618";
+        String expected = "5791113151719";
         int start = 5;
         int stop = 20;
         int step = 5;
@@ -231,7 +231,7 @@ public void testGetSquareNumbers() {
     @Test
     public void testGetExponentiationNumbers() {
         // : Given
-        String expected = "25100225";
+        String expected = "25.0100.0225.0";
         int start = 5;
         int stop = 20;
         int step = 5;