completed challenging lab

NumberUtilities.java

@@ -1,32 +1,80 @@
-
+import java.util.ArrayList;  
+import java.util.Arrays;  
 
 
 public class NumberUtilities {
 
     public static String getRange(int stop) {
-        return null;
+        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 == 1){
+            sb.append(i);
+            } 
+
+        }
+
+        return sb.toString();
     }
 
 
     public static String getExponentiations(int start, int stop, int exponent) {
-        return null;
+
+        StringBuilder sb = new StringBuilder();
+
+        for(int i = start; i <= stop; i++){
+
+            sb.append((int)Math.pow(i,exponent));
+
+
+        }
+
+        return sb.toString();
     }
 }

TableUtilities.java

@@ -2,14 +2,25 @@
 
 public class TableUtilities {
     public static String getSmallMultiplicationTable() {
-        return null;
+        return getMultiplicationTable(5);
     }
 
     public static String getLargeMultiplicationTable() {
-        return null;
+        return getMultiplicationTable(10);
     }
 
     public static String getMultiplicationTable(int tableSize) {
-        return null;
+        String result ="";
+        for(int i = 1; i <= tableSize; i++){
+        for(int k = 1; k <= tableSize; k++){
+         result += String.format("%3s", i*k) + " |";   
+
+
+        }
+
+        result += "\n";
+        }
+
+        return result;
     }
 }

TriangleUtilities.java

@@ -3,19 +3,35 @@
 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 result = "";
+    for(int i = 0; i < numberOfRows; i++){
+
+        for(int j = 0; j < i; j++){
+         result += "*";
+        }
+
+        result += "*\n";
+
+    }    
+
+     return result;
     }
 
 
     public static String getSmallTriangle() {
-        return null;
+        return getTriangle(4);
     }
 
     public static String getLargeTriangle() {
-        return null;
+        return getTriangle(9);
     }
 }

package.bluej

@@ -1,79 +1,103 @@
 #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.height=0
+editor.fx.0.width=0
+editor.fx.0.x=0
+editor.fx.0.y=0
+objectbench.height=163
+objectbench.width=793
 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.divider.vertical=0.7553956834532374
+package.editor.height=518
+package.editor.width=684
+package.editor.x=3301
+package.editor.y=568
 package.frame.height=759
-package.frame.width=508
+package.frame.width=817
 package.numDependencies=3
-package.numTargets=6
+package.numTargets=10
 package.showExtends=true
 package.showUses=true
 project.charset=UTF-8
-readme.height=58
+readme.height=60
 readme.name=@README
-readme.width=47
+readme.width=48
 readme.x=10
 readme.y=10
-target1.height=50
-target1.name=TableUtilitiesTest
-target1.showInterface=false
-target1.type=UnitTestTargetJunit4
-target1.width=110
-target1.x=100
-target1.y=270
+target1.height=70
+target1.name=README-TriangleUtilities.md
+target1.type=TextTarget
+target1.width=180
+target1.x=10
+target1.y=210
+target10.association=TriangleUtilitiesTest
+target10.height=50
+target10.name=TriangleUtilities
+target10.showInterface=false
+target10.type=ClassTarget
+target10.width=120
+target10.x=360
+target10.y=120
 target2.height=50
-target2.name=TriangleUtilitiesTest
+target2.name=TableUtilitiesTest
 target2.showInterface=false
 target2.type=UnitTestTargetJunit4
-target2.width=120
-target2.x=100
-target2.y=160
-target3.association=TableUtilitiesTest
+target2.width=110
+target2.x=410
+target2.y=260
 target3.height=50
-target3.name=TableUtilities
+target3.name=TriangleUtilitiesTest
 target3.showInterface=false
-target3.type=ClassTarget
-target3.width=110
-target3.x=70
-target3.y=300
-target4.association=NumberUtilitiesTest
-target4.height=50
-target4.name=NumberUtilities
-target4.showInterface=false
-target4.type=ClassTarget
-target4.width=120
-target4.x=80
-target4.y=70
+target3.type=UnitTestTargetJunit4
+target3.width=120
+target3.x=390
+target3.y=90
+target4.height=70
+target4.name=README-TableUtilities.md
+target4.type=TextTarget
+target4.width=170
+target4.x=110
+target4.y=280
+target5.association=TableUtilitiesTest
 target5.height=50
-target5.name=NumberUtilitiesTest
+target5.name=TableUtilities
 target5.showInterface=false
-target5.type=UnitTestTargetJunit4
-target5.width=120
-target5.x=110
-target5.y=40
-target6.association=TriangleUtilitiesTest
-target6.height=50
-target6.name=TriangleUtilities
-target6.showInterface=false
-target6.type=ClassTarget
-target6.width=120
-target6.x=70
-target6.y=190
+target5.type=ClassTarget
+target5.width=110
+target5.x=380
+target5.y=290
+target6.height=70
+target6.name=README-NumberUtilities.md
+target6.type=TextTarget
+target6.width=180
+target6.x=10
+target6.y=420
+target7.association=NumberUtilitiesTest
+target7.height=50
+target7.name=NumberUtilities
+target7.showInterface=false
+target7.type=ClassTarget
+target7.width=120
+target7.x=80
+target7.y=70
+target8.height=70
+target8.name=README.md
+target8.type=TextTarget
+target8.width=120
+target8.x=10
+target8.y=140
+target9.height=50
+target9.name=NumberUtilitiesTest
+target9.showInterface=false
+target9.type=UnitTestTargetJunit4
+target9.width=120
+target9.x=110
+target9.y=40