f

NumberUtilities.java

- 
-
 
 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 = "";
+        
+        if(start % 2 == 0) {
+            for(int i = start; i < stop; i += 2){
+                evenNumbers += i;            
+            }
+        }else if(start % 2 == 1){
+            for(int i = start + 1; i < stop; i += 2){
+                evenNumbers += i;
+            }            
+        }
+        return evenNumbers;
     }
 
 
     public static String getOddNumbers(int start, int stop) {
-        return null;
+        
+        String oddNumbers = "";
+
+        if (start % 2 == 1){
+            for(int i = start; i < stop; i += 2) {
+                oddNumbers += i;
+            }
+        } else if (start % 2 == 0){
+            for(int i = start + 1; i < stop; i += 2){
+                oddNumbers += i;
+            }
+        }
+        return oddNumbers;
     }
 
 
     public static String getExponentiations(int start, int stop, int exponent) {
-        return null;
+        
+        String expon = "";
+
+        if (exponent == 2){
+            for (int i = start; i < stop + 1; i++){
+                expon += i * i;
+            }
+        } else if (exponent == 3){
+            for (int i = start; i < stop + 1; i++){
+                
+                expon += i * i * i;
+            }
+        }
+        return expon; 
     }
 }

NumberUtilitiesTest.java

 import org.junit.Test;
 
 public class NumberUtilitiesTest {
-    
     @Test
-    public void testGetRangeForSmallRange() {
+    public void testGetRange1A() {
         // : Given
-        String expected = "012";
-        int stop = 3;
+        String expected = "0123456789";
+        int stop = 11;
 
         // : When
         String actual = NumberUtilities.getRange(stop);
         // : Then
         Assert.assertEquals(expected, actual);
     }
-    
-    
+
     @Test
-    public void testGetRangeToTwoDigits() {
+    public void testGetRange2A() {
         // : Given
-        String expected = "01234567891011";
-        int stop = 12;
+        String expected = "01234";
+        int stop = 5;
 
         // : When
         String actual = NumberUtilities.getRange(stop);
     }
 
     @Test
-    public void testGetRangeWithAStartNumber() {
+    public void testGetRange3A() {
         // : Given
-        String expected = "5678910111213141516171819";
-        int start = 5;
+        String expected = "012345678910111213141516171819";
         int stop = 20;
 
         // : When
-        String actual = NumberUtilities.getRange(start, stop);
+        String actual = NumberUtilities.getRange(stop);
 
         // : Then
         Assert.assertEquals(expected, actual);
     }
 
+
+
+
+
+
+
+
+
+
+
+
     @Test
-    public void testGetRangeStartAt100() {
+    public void testGetRange1B() {
         // : Given
-        String expected = "100101102103104105106107108109";
-        int start = 100;
-        int stop = 110;
+        String expected = "5678910111213141516171819";
+        int start = 5;
+        int stop = 20;
 
         // : When
         String actual = NumberUtilities.getRange(start, stop);
         Assert.assertEquals(expected, actual);
     }
 
-    
+
     @Test
-    public void testGetRangeWithOneStep() {
+    public void testGetRange2B() {
         // : Given
-        String expected = "012345678910111213141516171819";
-        int start = 0;
-        int stop = 20;
-        int step = 1;
+        String expected = "101112131415161718192021222324";
+        int start = 10;
+        int stop = 25;
 
         // : When
-        String actual = NumberUtilities.getRange(start, stop, step);
+        String actual = NumberUtilities.getRange(start, stop);
 
         // : Then
         Assert.assertEquals(expected, actual);
 
 
     @Test
-    public void testGetRangeWithTwoStep() {
+    public void testGetRange3B() {
         // : Given
-        String expected = "0246810";
-        int start = 0;
-        int stop = 11;
-        int step = 2;
+        String expected = "100101103104105106107108109";
+        int start = 100;
+        int stop = 110;
 
         // : When
-        String actual = NumberUtilities.getRange(start, stop, step);
+        String actual = NumberUtilities.getRange(start, stop);
 
         // : Then
         Assert.assertEquals(expected, actual);
     }
 
-        @Test
-    public void testGetRangeWithFiveStep() {
+
+
+
+
+
+
+
+
+
+
+
+
+    @Test
+    public void testGetRange1C() {
         // : Given
         String expected = "51015";
         int start = 5;
         Assert.assertEquals(expected, actual);
     }
 
-    
+
     @Test
-    public void testGetEvenNumbersStartAndEndAtEven() {
+    public void testGetRange2C() {
         // : Given
-        String expected = "4681012141618";
-        int start = 4;
+        String expected = "012345678910111213141516171819";
+        int start = 0;
         int stop = 20;
+        int step = 1;
 
         // : When
-        String actual = NumberUtilities.getEvenNumbers(start, stop);
+        String actual = NumberUtilities.getRange(start, stop, step);
 
         // : Then
         Assert.assertEquals(expected, actual);
     }
 
-    
+
     @Test
-    public void testGetEvenNumbersStartAndEndAtOdd() {
+    public void testGetRange3C() {
         // : Given
-        String expected = "68101214161820";
-        int start = 5;
-        int stop = 21;
+        String expected = "0246810";
+        int start = 0;
+        int stop = 11;
+        int step = 2;
 
         // : When
-        String actual = NumberUtilities.getEvenNumbers(start, stop);
+        String actual = NumberUtilities.getRange(start, stop, step);
 
         // : Then
         Assert.assertEquals(expected, actual);
     }
 
-    
+
+
+
+
+
+
+
+
+
+
+
+
+
     @Test
-    public void testGetOddNumbersStartAndEndAtOdd() {
+    public void testGetEvenNumbers() {
         // : Given
         String expected = "5791113151719";
         int start = 5;
-        int stop = 21;
+        int stop = 20;
 
         // : When
-        String actual = NumberUtilities.getOddNumbers(start, stop);
+        String actual = NumberUtilities.getEvenNumbers(start, stop);
 
         // : Then
         Assert.assertEquals(expected, actual);
     }
 
-    public void testGetOddNumbersStartAndEndAtEven() {
+    @Test
+    public void testGetOddNumbers() {
         // : Given
-        String expected = "579111315";
-        int start = 4;
-        int stop = 16;
+        String expected = "681012141618";
+        int start = 5;
+        int stop = 20;
+        int step = 5;
 
         // : When
         String actual = NumberUtilities.getOddNumbers(start, stop);
     }
 
 
+
     @Test
-    public void testGetExponentiationNumbersForSquare() {
+    public void testGetExponentsNumbersForSquare() {
         // : Given
-        String expected = "4916253649";
-        int start = 2;
-        int stop = 7;
-        int exponent = 2;
+        String expected = "25100225";
+        int start = 5;
+        int stop = 20;
+        int step = 5;
 
         // : When
-        String actual = NumberUtilities.getExponentiations(start, stop, exponent);
+        String actual = NumberUtilities.getExponentiations(start, stop, step);
 
         // : Then
         Assert.assertEquals(expected, actual);
     }
-    
-    
+
+
     @Test
     public void testGetExponentiationNumbersForCube() {
         // : Given
-        String expected = "182764";
-        int start = 1;
-        int stop = 4;
-        int exponent = 3;
+        String expected = "25100225";
+        int start = 5;
+        int stop = 20;
+        int step = 5;
+        int exponent = 2;
 
         // : When
         String actual = NumberUtilities.getExponentiations(start, stop, exponent);
 
-        // : Then
         Assert.assertEquals(expected, actual);
     }
-}
+}

package.bluej

 dependency3.from=NumberUtilitiesTest
 dependency3.to=NumberUtilities
 dependency3.type=UsesDependency
-editor.fx.0.height=0
-editor.fx.0.width=0
-editor.fx.0.x=0
-editor.fx.0.y=0
+editor.fx.0.height=722
+editor.fx.0.width=800
+editor.fx.0.x=192
+editor.fx.0.y=322
 objectbench.height=164
 objectbench.width=286
 package.divider.horizontal=0.6004098360655737
 package.divider.vertical=0.7560627674750356
 package.editor.height=523
 package.editor.width=382
-package.editor.x=20
-package.editor.y=57
+package.editor.x=106
+package.editor.y=84
 package.frame.height=759
 package.frame.width=508
 package.numDependencies=3
 target1.showInterface=false
 target1.type=UnitTestTargetJunit4
 target1.width=110
-target1.x=100
+target1.x=90
 target1.y=270
 target2.height=50
 target2.name=TriangleUtilitiesTest
 target3.showInterface=false
 target3.type=ClassTarget
 target3.width=110
-target3.x=70
+target3.x=60
 target3.y=300
 target4.association=NumberUtilitiesTest
 target4.height=50
 target4.showInterface=false
 target4.type=ClassTarget
 target4.width=120
-target4.x=80
-target4.y=70
+target4.x=110
+target4.y=80
+target5.association=TriangleUtilitiesTest
 target5.height=50
-target5.name=NumberUtilitiesTest
+target5.name=TriangleUtilities
 target5.showInterface=false
-target5.type=UnitTestTargetJunit4
+target5.type=ClassTarget
 target5.width=120
-target5.x=110
-target5.y=40
-target6.association=TriangleUtilitiesTest
+target5.x=70
+target5.y=190
 target6.height=50
-target6.name=TriangleUtilities
+target6.name=NumberUtilitiesTest
 target6.showInterface=false
-target6.type=ClassTarget
+target6.type=UnitTestTargetJunit4
 target6.width=120
-target6.x=70
-target6.y=190
+target6.x=140
+target6.y=50