NumberUtilities.java

 
 public class NumberUtilities {
     
-    public static String getRange(int start) {
-        return null;
+    public static String getRange(int stop) {
+        StringBuilder anw = new StringBuilder();
+        for (int i=0; i<stop; i++){
+           
+            anw.append(i);
+    }
+       
+        
+      
+        return anw.toString();
     }
     
     public static String getRange(int start, int stop) {
-        return null;
+        StringBuilder anw = new StringBuilder();
+        for (int i=start; i<stop;i++){
+            anw.append(i);
+        }
+       
+        return anw.toString();
     }
 
 
     public static String getRange(int start, int stop, int step) {
-        return null;
+        StringBuilder anw = new StringBuilder();
+        for (int i=start; i<stop; i=i+step){
+            anw.append(i);
+        }
+        return anw.toString();
     }
     
     public static String getEvenNumbers(int start, int stop) {
-        return null;
+    StringBuilder anw = new StringBuilder();
+    if (!isEven(start)){
+        start += 1;
     }
-
+          
+       for (int i=start;i<stop;i=i+2){
+         
+           anw.append(i);
+        }
+        
+    
+   
+    
+    return anw.toString();
+}
+    
+    
 
     public static String getOddNumbers(int start, int stop) {
-        return null;
+        StringBuilder anw = new StringBuilder();
+        if (isEven(start)){
+        start = start+1;
+        }
+        for (int i=start;i<stop;i=i+2){
+           
+            anw.append(i);
+        }
+        return anw.toString();
+    }
+   
+    public static boolean isEven(int num){
+        return num % 2 == 0;
     }
 
-
+    public static String getSquareNumbers(int start, int stop){
+        StringBuilder anw = new StringBuilder();
+        for (int i=start;i<=stop;i++){
+            anw.append ((int) (Math.pow(i,2)));
+            
+        }
+        
+        return anw.toString();
+    }
+    
     public static String getExponentiations(int start, int stop, int exponent) {
-        return null;
+        StringBuilder anw = new StringBuilder();
+        for (int i=start; i<=stop; i++){
+            anw.append((int)(Math.pow(i,exponent)));
+        
+        
     }
+        return anw.toString();
+}
+
 }

TableUtilities.java

 
 public class TableUtilities {
     public static String getSmallMultiplicationTable() {
-        return null;
+        StringBuilder anw = new StringBuilder();
+        int tableSize = 5;
+        
+        String pattern = "%4d";
+        for (int i=1;i<=5;i++){
+            for (int j=1;j<=5;j++){
+            
+            anw.append(String.format(pattern,i*j));
+            }
+            anw.append("\n");
+        }
+        
+        return anw.toString();
     }
 
     public static String getLargeMultiplicationTable() {
-        return null;
+        StringBuilder anw = new StringBuilder();
+        int tableSize = 10;
+        String pattern = "%4d";
+        for (int i=1;i<=10;i++){
+            for (int j=1;j<=10;j++){
+            
+                anw.append(String.format(pattern,i*j));
+               
+            }
+            anw.append("\n");
+           
+        }
+        
+        return anw.toString();
     }
 
     public static String getMultiplicationTable(int tableSize) {
-        return null;
+        StringBuilder anw = new StringBuilder();
+        String pattern = "%4d";
+        for (int i=1;i<=tableSize;i++){
+            for (int j=2;j<=tableSize;i++){
+                anw.append(String.format(pattern,i*j));
+            }
+            anw.append("\n");
+            
+        }
+        return anw.toString();
     }
 }

TriangleUtilities.java

 public class TriangleUtilities {
 
     public static String getRow(int numberOfStars) {
-        return null;
+        StringBuilder anw = new StringBuilder();
+        for(int i=0;i<numberOfStars;i++){
+        anw.append("*");
+        
+        }
+        return anw.toString();
     }
     
     public static String getTriangle(int numberOfRows) {
-        return null;
+        StringBuilder anw = new StringBuilder();
+        for (int i=1;i<numberOfRows+1;i++){
+         for(int j=0;j<i;j++){
+         anw.append("*");
+        
+            }
+         anw.append("\n"); 
+        }
+        return anw.toString();
     }
 
 
     public static String getSmallTriangle() {
-        return null;
+        StringBuilder anw = new StringBuilder();
+        for (int i=1;i<3;i++){
+            for(int j=0;j<i+1;j++){
+            anw.append("*");
+            }
+        anw.append("\n");
+        }
+        return anw.toString();
     }
 
     public static String getLargeTriangle() {
-        return null;
+        StringBuilder anw = new StringBuilder();
+        for (int i=1;i<10;i++){
+            for(int j=0;j<i+1;j++){
+            anw.append("*");
+            }
+        anw.append("\n");
+        }
+        
+       
+        return anw.toString();
     }
 }

package.bluej

 #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.height=709
 editor.fx.0.width=800
-editor.fx.0.x=537
-editor.fx.0.y=28
-objectbench.height=164
+editor.fx.0.x=480
+editor.fx.0.y=23
+objectbench.height=152
 objectbench.width=484
 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.divider.vertical=0.7557603686635944
+package.editor.height=485
+package.editor.width=383
+package.editor.x=146
+package.editor.y=23
+package.frame.height=709
 package.frame.width=508
 package.numDependencies=3
 package.numTargets=6
 target2.name=TriangleUtilitiesTest
 target2.showInterface=false
 target2.type=UnitTestTargetJunit4
-target2.width=120
+target2.width=130
 target2.x=100
 target2.y=160
 target3.association=TableUtilitiesTest
 target6.name=TriangleUtilities
 target6.showInterface=false
 target6.type=ClassTarget
-target6.width=120
+target6.width=130
 target6.x=70
 target6.y=190