NumberUtilities.java

@@ -1,32 +1,68 @@
- 
 
 
 public class NumberUtilities {
-    
+
     public static String getRange(int start) {
-        return null;
+        String range = "";
+        for(int i= 0; i<start; 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 evenNumbers = "";
+        for (int i=start; i<stop; i++){
+            int remainder= i%2;
+            if (remainder==0 ){
+                evenNumbers+=i;
+            }
+        }
 
+        return evenNumbers;
+    }
 
     public static String getOddNumbers(int start, int stop) {
-        return null;
-    }
+        String oddNumbers = "";
+        for (int i=start; i<stop; i++){
+            int remainder= i%2;
+            if (remainder==1 ){
+                oddNumbers+=i;
+            }
+        }
 
+        return oddNumbers;
+    }
 
     public static String getExponentiations(int start, int stop, int exponent) {
-        return null;
+        String result = "";
+        
+        for(int i=start; i<= stop; i++){
+            int sum = 1;
+            for(int j=1; j<=exponent; j++){
+                sum*=i;
+            }
+            
+            result+=sum;
+            
+        }
+
+        return result;
     }
 }

NumberUtilitiesTest.java

@@ -196,4 +196,10 @@ public class NumberUtilitiesTest {
         // : Then
         Assert.assertEquals(expected, actual);
     }
+
+    @Test
+    public void test1()
+    {
+    }
 }
+

TableUtilities.java

@@ -1,15 +1,50 @@
- 
 
 public class TableUtilities {
     public static String getSmallMultiplicationTable() {
-        return null;
+        StringBuilder sb = new StringBuilder();
+        
+        int i;
+        int z;
+        for (i=1; i<=5; ++i ){
+            for (z=1; z<=5; ++z){
+                sb.append(String.format("%3s |",(i*z)));
+
+            } 
+            sb.append("\n");
+            
+        }
+        return sb.toString();
     }
 
     public static String getLargeMultiplicationTable() {
-        return null;
+        StringBuilder sb = new StringBuilder();
+        
+        int i;
+        int z;
+        for (i=1; i<=10; ++i ){
+            for (z=1; z<=10; ++z){
+                sb.append(String.format("%3s |",(i*z)));
+
+            } 
+            sb.append("\n");
+            
+        }
+        return sb.toString();
     }
 
     public static String getMultiplicationTable(int tableSize) {
-        return null;
+        StringBuilder sb = new StringBuilder();
+        int width=tableSize;
+        int i;
+        int z;
+        for (i=1; i<=width; ++i ){
+            for (z=1; z<=width; ++z){
+                sb.append(String.format("%3s |",(i*z)));
+
+            } 
+            sb.append("\n");
+            
+        }
+        return sb.toString();
     }
 }

TriangleUtilities.java

@@ -1,21 +1,53 @@
- 
 
 public class TriangleUtilities {
-
     public static String getRow(int numberOfStars) {
-        return null;
+        String result= "";
+        for(int i=0; i<numberOfStars; i++) {
+            result+= "*";
+        }
+
+        return result;
     }
-    
+
     public static String getTriangle(int numberOfRows) {
-        return null;
-    }
+        String triangle="";
+        for(int i=1; i<=numberOfRows; i++) {
+            for(int z=1; z<=i; z++){
+                triangle += "*";
 
+            }
+            triangle+="\n";
+
+        }
+
+        return triangle;
+    }
 
     public static String getSmallTriangle() {
-        return null;
+        String triangle="";
+        for(int i=1; i<=4; i++) {
+            for(int z=1; z<=i; z++){
+                triangle += "*";
+
+            }
+            triangle+="\n";
+
+        }
+
+        return triangle;
     }
 
     public static String getLargeTriangle() {
-        return null;
+        String triangle="";
+        for(int i=1; i<=9; i++) {
+            for(int z=1; z<=i; z++){
+                triangle += "*";
+
+            }
+            triangle+="\n";
+
+        }
+
+        return triangle;
     }
 }

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
+editor.fx.0.x=240
+editor.fx.0.y=24
+objectbench.height=175
+objectbench.width=727
 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
+package.divider.vertical=0.5550122249388753
+package.editor.height=220
+package.editor.width=609
+package.editor.x=32
+package.editor.y=140
+package.frame.height=467
+package.frame.width=751
 package.numDependencies=3
 package.numTargets=6
 package.showExtends=true