done

NumberUtilities.java

- 
-
-
 public class NumberUtilities {
-    
-    public static String getRange(int start) {
-        return null;
+    public static String getRange(int stop) {
+        String str ="";
+        for (int i = 0; i < stop; i++){
+            str = str + i;
+        }
+        return str;
     }
-    
+
     public static String getRange(int start, int stop) {
-        return null;
+        String str ="";
+        for (int i = start; i < stop; i++){
+            str = str + i;
+        }
+        return str;
     }
 
-
     public static String getRange(int start, int stop, int step) {
-        return null;
+        String str = "";
+        for (int i = start; i < stop; i=i+step){
+            str = str + i;
+        }
+        return str;
     }
-    
+
     public static String getEvenNumbers(int start, int stop) {
-        return null;
+        String str = "";
+        for (int i = start; i < stop; i++)
+            if (i % 2 == 0) {
+                str = str +i;
+            }
+        return str;
     }
 
-
     public static String getOddNumbers(int start, int stop) {
-        return null;
+        String str = "";
+        for (int i = start; i < stop; i++)
+            if (i % 2 == 1){
+                str = str + i;
+            }
+        return str;
     }
 
-
     public static String getExponentiations(int start, int stop, int exponent) {
-        return null;
+        String str = "";
+        for (int i = start; i <= stop; i++){
+            str = str + (int) Math.pow(i, exponent);
+        }
+        return str; 
     }
-}
+}

TableUtilities.java

- 
 
 public class TableUtilities {
     public static String getSmallMultiplicationTable() {
-        return null;
+        String str = "";
+        for (int i =1; i<=5 ;i++){
+            for (int j = 1; j <=5; j++){
+                String str2 = String.format("%3d", (i*j));
+                str = str + str2 +" |";
+            }
+            str = str + "\n";
+        }
+        return str;
     }
 
     public static String getLargeMultiplicationTable() {
-        return null;
+        String str = "";
+        for (int i = 1; i <=10; i++){
+            for (int j = 1; j <=10; j++){
+            String str2 = String.format("%3d",i*j);
+            str = str + str2 + " |";
+        }
+            str = str + "\n";
+        }
+        return str;
     }
 
     public static String getMultiplicationTable(int tableSize) {
-        return null;
+        String str = "";
+        for (int i = 1; i <= tableSize; i++){
+        for (int j = 1; j <= tableSize; j++){
+            String str2 = String.format("%3d", i*j);
+            str = str + str2 + " |";
+        }
+        str = str + "\n";
+        }
+        return str;
     }
-}
+}

TriangleUtilities.java

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

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.from=NumberUtilitiesTest
+dependency2.to=NumberUtilities
 dependency2.type=UsesDependency
-dependency3.from=TableUtilitiesTest
-dependency3.to=TableUtilities
+dependency3.from=TriangleUtilitiesTest
+dependency3.to=TriangleUtilities
 dependency3.type=UsesDependency
 editor.fx.0.height=722
-editor.fx.0.width=800
-editor.fx.0.x=537
-editor.fx.0.y=28
+editor.fx.0.width=634
+editor.fx.0.x=806
+editor.fx.0.y=23
 objectbench.height=164
-objectbench.width=484
-package.divider.horizontal=0.6
+objectbench.width=401
+package.divider.horizontal=0.6465927099841522
 package.divider.vertical=0.7560627674750356
 package.editor.height=523
-package.editor.width=382
-package.editor.x=20
-package.editor.y=57
+package.editor.width=525
+package.editor.x=789
+package.editor.y=23
 package.frame.height=759
-package.frame.width=508
+package.frame.width=651
 package.numDependencies=3
 package.numTargets=6
 package.showExtends=true