NumberUtilities.java

@@ -3,30 +3,61 @@
 
 public class NumberUtilities {
     
-    public static String getRange(int start) {
-        return null;
+    public static String getRange(int stop) {
+        StringBuilder sb = new StringBuilder();
+        for(int i=0; i<stop; i++) {
+            sb.append(i);
+            
+        }
+        return sb.toString();
+       
     }
     
     public static String getRange(int start, int stop) {
-        return null;
+        StringBuilder sb = new StringBuilder();
+        for(int i = start; i < stop; i++) {
+            sb.append(i);
+        }
+        return sb.toString();
     }
 
 
     public static String getRange(int start, int stop, int step) {
-        return null;
+        StringBuilder sb = new StringBuilder();
+        for(int i=start; i<stop; i+=step) {
+            sb.append(i);
+        }
+        return sb.toString();
     }
     
     public static String getEvenNumbers(int start, int stop) {
-        return null;
+        StringBuilder sb = new StringBuilder();
+        for(int i = start; i < stop; i++) {
+            if(i%2==0) {
+            sb.append(i);}
     }
+        return sb.toString();
+    }
+
 
 
     public static String getOddNumbers(int start, int stop) {
-        return null;
+        StringBuilder sb = new StringBuilder();
+        for(int i = start; i < stop; i++) {
+            if(i%2!=0) {
+            sb.append(i);}
+    }
+        return sb.toString();
     }
 
 
     public static String getExponentiations(int start, int stop, int exponent) {
-        return null;
+        StringBuilder sb = new StringBuilder();
+        int exp = exponent;
+        int answer = 0;
+        for(int i=start; i<=stop; i++) {
+            sb.append((int)Math.pow(i,exp));
+        }
+        return sb.toString();
     }
 }

TableUtilities.java

@@ -1,15 +1,26 @@
- 
 
 public class TableUtilities {
+    
+    
     public static String getSmallMultiplicationTable() {
-        return null;
+        
+        return getMultiplicationTable(5);
     }
 
-    public static String getLargeMultiplicationTable() {
-        return null;
+    public static String getLargeMultiplicationTable() { 
+        return getMultiplicationTable(10);
     }
 
     public static String getMultiplicationTable(int tableSize) {
-        return null;
+        
+        StringBuilder sb = new StringBuilder();
+        //int tableSize = 5;
+        for(int i = 1; i <= tableSize; i++) {
+            for(int j = 1; j <= tableSize; j++) {
+                sb.append(String.format("%3d |", i * j));
+            }sb.append("\n");
+        }
+        return sb.toString();
     }
 }
+

TriangleUtilities.java

@@ -1,21 +1,28 @@
- 
 
 public class TriangleUtilities {
-
     public static String getRow(int numberOfStars) {
-        return null;
+        String star = "*";
+        String output = "";
+        int n = numberOfStars;
+        for(int i =1; i<=n; i++) {
+            output += String.format("%s", star);
+        }
+        return output;
     }
-    
+
     public static String getTriangle(int numberOfRows) {
-        return null;
+        StringBuilder sb = new StringBuilder();
+        for(int i =1; i<=numberOfRows; i++) {
+            sb.append(getRow(i) + "\n");
+        }
+        return sb.toString();
     }
 
-
     public static String getSmallTriangle() {
-        return null;
+        return getTriangle(4);
     }
-
+    
     public static String getLargeTriangle() {
-        return null;
+        return getTriangle(9);
     }
 }

package.bluej

@@ -1,27 +1,27 @@
 #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
-objectbench.width=484
-package.divider.horizontal=0.6
-package.divider.vertical=0.7560627674750356
-package.editor.height=523
-package.editor.width=382
-package.editor.x=20
-package.editor.y=57
-package.frame.height=759
-package.frame.width=508
+editor.fx.0.height=0
+editor.fx.0.width=0
+editor.fx.0.x=0
+editor.fx.0.y=0
+objectbench.height=152
+objectbench.width=424
+package.divider.horizontal=0.6002785515320335
+package.divider.vertical=0.7557603686635944
+package.editor.height=485
+package.editor.width=612
+package.editor.x=427
+package.editor.y=23
+package.frame.height=709
+package.frame.width=738
 package.numDependencies=3
 package.numTargets=6
 package.showExtends=true