loops Labs

NumberUtilities.java

@@ -1,32 +1,59 @@
- 
 
 
 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 +=i;}
+
+        return str;
     }
-    
+
     public static String getRange(int start, int stop) {
-        return null;
+        String str ="";
+        for (int i=start; i<= stop; i++){
+            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+=step ){
+            str+=i;
+        }
+        return str;
     }
-    
+
     public static String getEvenNumbers(int start, int stop) {
-        return null;
+        String str = "";
+        for (int i=start; i<stop; i+=2){
+            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!=0){
+                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+=exponent){
+            
+            str +=i;
+        }
+            return str;
+        }
+    
+    
 }
+

NumberUtilitiesTest.java

@@ -1,10 +1,9 @@
- 
 
 import org.junit.Assert;
 import org.junit.Test;
 
 public class NumberUtilitiesTest {
-    
+
     @Test
     public void testGetRangeForSmallRange() {
         // : Given
@@ -17,8 +16,7 @@ public class NumberUtilitiesTest {
         // : Then
         Assert.assertEquals(expected, actual);
     }
-    
-    
+
     @Test
     public void testGetRangeToTwoDigits() {
         // : Given
@@ -60,7 +58,6 @@ public class NumberUtilitiesTest {
         Assert.assertEquals(expected, actual);
     }
 
-    
     @Test
     public void testGetRangeWithOneStep() {
         // : Given
@@ -76,7 +73,6 @@ public class NumberUtilitiesTest {
         Assert.assertEquals(expected, actual);
     }
 
-
     @Test
     public void testGetRangeWithTwoStep() {
         // : Given
@@ -92,7 +88,7 @@ public class NumberUtilitiesTest {
         Assert.assertEquals(expected, actual);
     }
 
-        @Test
+    @Test
     public void testGetRangeWithFiveStep() {
         // : Given
         String expected = "51015";
@@ -107,7 +103,6 @@ public class NumberUtilitiesTest {
         Assert.assertEquals(expected, actual);
     }
 
-    
     @Test
     public void testGetEvenNumbersStartAndEndAtEven() {
         // : Given
@@ -122,7 +117,6 @@ public class NumberUtilitiesTest {
         Assert.assertEquals(expected, actual);
     }
 
-    
     @Test
     public void testGetEvenNumbersStartAndEndAtOdd() {
         // : Given
@@ -137,7 +131,6 @@ public class NumberUtilitiesTest {
         Assert.assertEquals(expected, actual);
     }
 
-    
     @Test
     public void testGetOddNumbersStartAndEndAtOdd() {
         // : Given
@@ -165,7 +158,6 @@ public class NumberUtilitiesTest {
         Assert.assertEquals(expected, actual);
     }
 
-
     @Test
     public void testGetExponentiationNumbersForSquare() {
         // : Given
@@ -180,8 +172,9 @@ public class NumberUtilitiesTest {
         // : Then
         Assert.assertEquals(expected, actual);
     }
+
     
-    
+
     @Test
     public void testGetExponentiationNumbersForCube() {
         // : Given

TableUtilities.java

@@ -1,12 +1,30 @@
- 
 
 public class TableUtilities {
     public static String getSmallMultiplicationTable() {
-        return null;
+        String str= "";
+        for (int i=1; i<=5; i++){
+            int product=0;
+            for (int j=1; j<=5;j++){
+                product= i*j;
+                str += String.format("%3d |", product);
+            }
+            str+="\n";
+        }
+
+        return str;
     }
 
     public static String getLargeMultiplicationTable() {
-        return null;
+        String str="";
+        for(int i=1; i<=11; i++){
+            int product=0;
+            for (int j=1; j<=11; j++){
+                product=i*j;
+                str+= String.format("%10d |", product);
+            }
+            str+="\n";
+        }
+        return str;
     }
 
     public static String getMultiplicationTable(int tableSize) {

TriangleUtilities.java

@@ -1,21 +1,45 @@
- 
 
 public class TriangleUtilities {
-
     public static String getRow(int numberOfStars) {
-        return null;
+        String str = "";
+        for (int i=0; i<numberOfStars; i++){
+            str += "*";
+        }
+        return str;
     }
-    
+
     public static String getTriangle(int numberOfRows) {
-        return null;
+        String rows="";
+        for (int x=1; x<= numberOfRows; x++){
+            for (int y=1; y<=x; y++) {
+                rows+="*";
+            }
+            rows += "\n";
+        }
+        return rows;
     }
 
-
     public static String getSmallTriangle() {
-        return null;
+        String small= "";
+        for (int i=1; i<=4; i++){
+            for (int j=1; j<=i; j++){
+                small+="*";
+            }
+            small+="\n";
+
+        }
+        return small;
     }
 
     public static String getLargeTriangle() {
-        return null;
+        String large= "";
+        for (int i=1; i<10; i++){
+            for (int j=1; j<=i; j++){
+                large+="*";
+            }
+            large+="\n";
+        }
+        return large;
+
     }
 }

package.bluej

@@ -1,26 +1,26 @@
 #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
-objectbench.height=164
+editor.fx.0.x=447
+editor.fx.0.y=31
+objectbench.height=154
 objectbench.width=484
 package.divider.horizontal=0.6
-package.divider.vertical=0.7560627674750356
-package.editor.height=523
+package.divider.vertical=0.7553191489361702
+package.editor.height=490
 package.editor.width=382
-package.editor.x=20
-package.editor.y=57
-package.frame.height=759
+package.editor.x=159
+package.editor.y=23
+package.frame.height=716
 package.frame.width=508
 package.numDependencies=3
 package.numTargets=6