NumberUtilities.java

@@ -1,32 +1,104 @@
- 
-
 
 public class NumberUtilities {
-    
     public static String getRange(int start) {
-        return null;
+        StringBuilder number = new StringBuilder();
+        for(int i = 0; i < start; i++){
+            number.append(i);
+        }
+
+        return number.toString();
     }
-    
+
     public static String getRange(int start, int stop) {
-        return null;
-    }
+        StringBuilder number = new StringBuilder();
 
+        for(int i = start; i < stop; i++){
+            number.append(i);
+        }
+
+        return number.toString();
+    }
 
     public static String getRange(int start, int stop, int step) {
-        return null;
+        StringBuilder number = new StringBuilder();
+
+        for(int i = start; i < stop; i+= step){
+            number.append(i);
+        }
+
+        return number.toString();
     }
-    
+
     public static String getEvenNumbers(int start, int stop) {
-        return null;
-    }
+        StringBuilder number = new StringBuilder();
 
+        if(start % 2 == 0){
+            for(int i = start; i < stop; i+= 2){
+                number.append(i);
+            }
+        }
+        else {
+            for(int i = start+1; i < stop; i+= 2){
+                number.append(i);
+            }
+        }
 
-    public static String getOddNumbers(int start, int stop) {
-        return null;
+        return number.toString();
     }
 
+    public static String getOddNumbers(int start, int stop) {
+        StringBuilder number = new StringBuilder();
+
+        if(start % 2 != 0){
+            for(int i = start; i < stop; i+= 2){
+                number.append(i);
+            }
+        }
+        else {
+            for(int i = start+1; i < stop; i+= 2){
+                number.append(i);
+            }
+        }
+
+        return number.toString();
+    }
 
     public static String getExponentiations(int start, int stop, int exponent) {
-        return null;
+        StringBuilder number = new StringBuilder();
+        
+        int x = 0;
+        
+        if(exponent % 2 == 0){
+            for(int i = start; i <= stop; i++){
+                x = (int)Math.pow(i, exponent);
+                number.append(x);
+            }
+        }
+        
+        if(exponent % 2 != 0){
+            for(int i = start; i <= stop; i++){
+                x = (int)Math.pow(i, exponent);
+                number.append(x);
+            }
+        }
+        
+        
+        // else {
+            // for(int i = start; i <= stop; i++){
+                // Math.pow(start, 3);
+                // number.append(i);
+            // }
+        // }
+        
+        
+        
+        
+
+        // for(int i = start; i <= stop; i++){
+            // Math.pow(start, exponent);
+            // number.append(i);
+        // }
+
+        return number.toString();
     }
 }

TableUtilities.java

@@ -1,15 +1,40 @@
- 
 
 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;
+        StringBuilder table = new StringBuilder();
+        
+        for(int row=1; row <= tableSize; row++){
+            
+            for(int column=1; column<= tableSize; column++){
+                
+                table.append( String.format("%3d |" , column*row));
+                
+            }
+            
+            table.append("\n");
+            
+        }
+        
+        return table.toString();
     }
 }
+
+/**
+StringBuilder
+for loop row
+nested for loop coloumn
+append string
+
+Take note of how the multiplication table works
+ **/
+

TriangleUtilities.java

@@ -1,21 +1,50 @@
- 
 
 public class TriangleUtilities {
-
     public static String getRow(int numberOfStars) {
-        return null;
+        StringBuilder triangle = new StringBuilder();
+        
+        for (int x = 0; x < numberOfStars; x++){
+             triangle.append(String.format("*"));
+        }
+        
+        return triangle.toString();
     }
-    
+
     public static String getTriangle(int numberOfRows) {
-        return null;
+        StringBuilder triangle = new StringBuilder();
+        
+        for (int x = 0; x < numberOfRows; x++){
+            triangle.append(String.format("*"));
+            triangle.append("\n");
+        }
+        
+        return triangle.toString();
     }
 
-
     public static String getSmallTriangle() {
-        return null;
+        StringBuilder triangle = new StringBuilder();
+
+        for (int x = 0; x <5; x++){
+            for (int y = 0; y <x; y++){
+                triangle.append(String.format("*"));
+            }
+            triangle.append("\n");
+        }
+
+        return triangle.toString();
     }
 
     public static String getLargeTriangle() {
-        return null;
+        StringBuilder triangle = new StringBuilder();
+
+        for (int x = 0; x <11; x++){
+            for (int y = 0; y <x; y++){
+                triangle.append(String.format("*"));
+            }
+            triangle.append("\n");
+        }
+
+        return triangle.toString();
     }
 }
+

package.bluej

@@ -10,17 +10,17 @@ dependency3.to=TableUtilities
 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=240
+editor.fx.0.y=24
+objectbench.height=156
 objectbench.width=484
 package.divider.horizontal=0.6
-package.divider.vertical=0.7560627674750356
-package.editor.height=523
+package.divider.vertical=0.7552552552552553
+package.editor.height=496
 package.editor.width=382
-package.editor.x=20
-package.editor.y=57
-package.frame.height=759
+package.editor.x=100
+package.editor.y=24
+package.frame.height=724
 package.frame.width=508
 package.numDependencies=3
 package.numTargets=6