NumberUtilities.java

 
 public class NumberUtilities {
     
-    public static String getRange(int start) {
-        return null;
+    public static String getRange(int stop) {
+        String range = "";
+        for (int i = 0; i < stop; i++) {
+         range += i;   
+        }
+        return range;
     }
     
     public static String getRange(int start, int stop) {
-        return null;
+        String range = "";
+        for (int i = start; i < stop; i++) {
+            range += i;
+        }
+        return range;
     }
 
 
     public static String getRange(int start, int stop, int step) {
-        return null;
+        String range = "";
+        for (int i = start; i < stop; i += step) {
+            range += i;   
+        }
+        return range;
     }
     
     public static String getEvenNumbers(int start, int stop) {
-        return null;
+        String evenNumber = "";
+        for (int i = start; i < stop; i++) {
+            if (i % 2 == 0) {
+                evenNumber += i;
+            }
+        }
+        return evenNumber;
     }
 
 
     public static String getOddNumbers(int start, int stop) {
-        return null;
+        String oddNumber = "";
+        for (int i = start; i < stop; i++) {
+            if (i % 2 != 0) {
+                oddNumber += i;
+            }
+        }
+        return oddNumber;
     }
 
 
     public static String getExponentiations(int start, int stop, int exponent) {
-        return null;
+        String numberSquared = "";
+        for (int i = start; i < stop; i++) {
+            numberSquared += Math.pow(i, exponent);
+        }
+        return numberSquared;
     }
 }

TableUtilities.java

 
 public class TableUtilities {
     public static String getSmallMultiplicationTable() {
+        StringBuilder timesTable = new StringBuilder();
+        for (int i = 0; i <= 4; i++) {
+         for (int j = 0; j < i; i++) {
+             
+            }
+        }
         return null;
     }
 

TriangleUtilities.java

 public class TriangleUtilities {
 
     public static String getRow(int numberOfStars) {
-        return null;
+        StringBuilder starRow = new StringBuilder();
+        for (int i = 0; i < numberOfStars; i++) {
+            starRow.append("*");
+        }
+        return starRow.toString();
+        
     }
     
     public static String getTriangle(int numberOfRows) {
-        return null;
+        StringBuilder starRow = new StringBuilder();
+        for (int i = 1; i <= numberOfRows; i++) {
+
+            for (int j = 0; j < i; j++) {
+                starRow.append("*");
+            }
+            starRow.append("\n");
+        }
+        return starRow.toString();
     }
 
 
     public static String getSmallTriangle() {
-        return null;
+        return getTriangle(4);
     }
 
     public static String getLargeTriangle() {
-        return null;
+        return getTriangle(9);
     }
 }

package.bluej

 #BlueJ package file
-dependency1.from=NumberUtilitiesTest
-dependency1.to=NumberUtilities
+dependency1.from=TableUtilitiesTest
+dependency1.to=TableUtilities
 dependency1.type=UsesDependency
 dependency2.from=TriangleUtilitiesTest
 dependency2.to=TriangleUtilities
 dependency2.type=UsesDependency
-dependency3.from=TableUtilitiesTest
-dependency3.to=TableUtilities
+dependency3.from=NumberUtilitiesTest
+dependency3.to=NumberUtilities
 dependency3.type=UsesDependency
 editor.fx.0.height=722
 editor.fx.0.width=800
-editor.fx.0.x=537
-editor.fx.0.y=28
-objectbench.height=164
+editor.fx.0.x=268
+editor.fx.0.y=29
+objectbench.height=156
 objectbench.width=484
 package.divider.horizontal=0.6
-package.divider.vertical=0.7560627674750356
-package.editor.height=523
+package.divider.vertical=0.7556221889055472
+package.editor.height=497
 package.editor.width=382
-package.editor.x=20
-package.editor.y=57
-package.frame.height=759
+package.editor.x=-6
+package.editor.y=54
+package.frame.height=725
 package.frame.width=508
 package.numDependencies=3
 package.numTargets=6