NumberUtilities.java

- 
 
+import java.lang.Math;
 
 public class NumberUtilities {
-    
     public static String getRange(int start) {
-        return null;
+        String sum = "";
+        for(int i = 0; i < start; i++){ 
+            String range = String.valueOf(i);
+            sum += range;
+        }
+        return sum;
     }
-    
+
     public static String getRange(int start, int stop) {
-        return null;
-    }
+        String sum = "";
+        for(int i = start; i < stop; i++) {
+            String range = String.valueOf(i);
+            sum += range;
+        }
 
+        return sum; 
 
-    public static String getRange(int start, int stop, int step) {
-        return null;
     }
-    
+
+    public static String getRange(int start, int stop, int step) {
+        String result = "";
+        for(int i = start; i < stop; i += step) {
+            String range = String.valueOf(i);
+            result += range;
+        }
+        return result;  
+    }  
+
     public static String getEvenNumbers(int start, int stop) {
-        return null;
-    }
+        String result = "";
+        for(int i = start; i < stop; i++) {
+            if (i % 2 ==0) {
+                String range = String.valueOf(i);
+                result += range;
+            }
 
+        } return result; 
+    }
 
     public static String getOddNumbers(int start, int stop) {
-        return null;
+        String result = "";
+        for(int i = start; i < stop; i++) {
+            if(i % 2 ==1){
+                String range = String.valueOf(i);
+                result += range;
+            }
+        } 
+        return result;
+        
     }
 
-
     public static String getExponentiations(int start, int stop, int exponent) {
-        return null;
+         String result = "";
+        for (int i = start; i <= stop; i++){
+            int stuff = i;
+            for (int j = 1; j < exponent; j++){
+                stuff *= i ;
+            }
+            result += stuff;
+        }
+        return result;
     }
+    
 }

TableUtilities.java

- 
 
 public class TableUtilities {
     public static String getSmallMultiplicationTable() {
-        return null;
+        String answer = "";
+        for (int i = 1; i <= 5; i++){
+            for (int j = 1; j <= 5; j++){
+                answer += String.format(" %2d |",j*i);
+            }
+            answer+="\n";
+        }
+        return answer;
     }
 
     public static String getLargeMultiplicationTable() {
-        return null;
+        String answer = "";
+        for (int i = 1;i <= 10; i++){
+            for (int j = 1;j <= 10; j++){
+                answer+= String.format("%3d |",j*i);
+            }
+            answer +="\n";
+        }
+        return answer;
     }
 
     public static String getMultiplicationTable(int tableSize) {
-        return null;
+        String answer = "";
+        for (int i = 1; i <= tableSize; i++){
+            for (int j = 1; j <= tableSize; j++){
+                answer += String.format("%3d |",j*i);
+            }
+            answer += "\n";
+        }
+        return answer;
+
     }
 }

TriangleUtilities.java

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

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=-145
+editor.fx.0.y=-1057
+objectbench.height=165
 objectbench.width=484
 package.divider.horizontal=0.6
-package.divider.vertical=0.7560627674750356
-package.editor.height=523
+package.divider.vertical=0.7546362339514978
+package.editor.height=522
 package.editor.width=382
-package.editor.x=20
+package.editor.x=17
 package.editor.y=57
 package.frame.height=759
 package.frame.width=508