Complete and tested loopy loops

NumberUtilities.java

@@ -1,32 +1,59 @@
- 
-
-
 public class NumberUtilities {
-    
-    public static String getRange(int start) {
-        return null;
+
+    public static String getRange(int stop) {
+        StringBuilder outcome = new StringBuilder();
+        for(int i = 0; i < stop; i++) {
+            outcome.append(i);
+        }
+        return outcome.toString();
     }
-    
+
     public static String getRange(int start, int stop) {
-        return null;
+        StringBuilder outcome = new StringBuilder();
+        for(int i = start; i < stop; i++) {
+            outcome.append(i);
+        }
+        return outcome.toString();
     }
 
-
     public static String getRange(int start, int stop, int step) {
-        return null;
+        StringBuilder outcome = new StringBuilder();
+        for(int i = start; i < stop; i+=step) {
+            outcome.append(i);
+        }
+        return outcome.toString();
     }
-    
+
     public static String getEvenNumbers(int start, int stop) {
-        return null;
+        StringBuilder outcome = new StringBuilder();
+        for(int i = start; i < stop; i++) {
+            if (i % 2 == 0) {
+                outcome.append(i);
+            } else {
+                continue;
+            }
+        }
+        return outcome.toString();
     }
 
-
     public static String getOddNumbers(int start, int stop) {
-        return null;
+        StringBuilder outcome = new StringBuilder();
+        for(int i = start; i < stop; i++) {
+            if (i % 2 != 0) {
+                outcome.append(i);
+            } else {
+                continue;
+            }
+        }
+        return outcome.toString();
     }
 
-
     public static String getExponentiations(int start, int stop, int exponent) {
-        return null;
+        StringBuilder outcome = new StringBuilder();
+        for (int i = start; i <= stop; i++) {
+            int j = (int) Math.pow(i, exponent);
+            outcome.append(j);
+        }
+        return outcome.toString();
     }
 }

TableUtilities.java

@@ -1,15 +1,51 @@
- 
+// String.format();
+// %n
+import java.util.Formatter;
 
 public class TableUtilities {
     public static String getSmallMultiplicationTable() {
-        return null;
+        StringBuilder table = new StringBuilder();
+
+        for (int i = 1; i <= 5; i++) {
+            for (int j = 1; j <= 5; j++) {
+                table.append(String.format("%3s |", j * i));
+            }
+            table.append("\n");
+        }
+        //String tableLine = String.format("| %s |", table);
+
+        System.out.println(table);
+        return table.toString();
     }
 
     public static String getLargeMultiplicationTable() {
-        return null;
+        StringBuilder table = new StringBuilder();
+
+        for (int i = 1; i <= 10; i++) {
+            for (int j = 1; j <= 10; j++) {
+                table.append(String.format("%3s |", j * i));
+            }
+            table.append("\n");
+        }
+        //String tableLine = String.format("| %s |", table);
+
+        System.out.println(table);
+        return table.toString();
+
     }
 
     public static String getMultiplicationTable(int tableSize) {
-        return null;
+        StringBuilder table = new StringBuilder();
+
+        for (int i = 1; i <= tableSize; i++) {
+            for (int j = 1; j <= tableSize; j++) {
+                table.append(String.format("%3s |", j * i));
+            }
+            table.append("\n");
+        }
+        //String tableLine = String.format("| %s |", table);
+
+        System.out.println(table);
+        return table.toString();
     }
 }

TriangleUtilities.java

@@ -1,21 +1,47 @@
- 
-
 public class TriangleUtilities {
 
-    public static String getRow(int numberOfStars) {
-        return null;
+    public static String getRow(int numberOfStars) { 
+        StringBuilder asterisks = new StringBuilder();
+
+        for (int i = 1; i <= numberOfStars; i++) {
+            asterisks.append("*");
+        }
+        return asterisks.toString();
     }
-    
+
     public static String getTriangle(int numberOfRows) {
-        return null;
-    }
+        StringBuilder asterisks = new StringBuilder();
 
+        for (int i = 1; i <= numberOfRows; i++) {
+            for (int j = 1; j <= i; j++) {
+                asterisks.append("*");
+            }
+            asterisks.append("\n");
+        }
+        return asterisks.toString();
+    }
 
     public static String getSmallTriangle() {
-        return null;
+        StringBuilder asterisks = new StringBuilder();
+
+        for (int i = 1; i <= 4; i++) {
+            for (int j = 1; j <= i; j++) {
+                asterisks.append("*");
+            }
+            asterisks.append("\n");
+        }
+        return asterisks.toString(); 
     }
 
-    public static String getLargeTriangle() {
-        return null;
+    public static String getLargeTriangle() {         
+        StringBuilder asterisks = new StringBuilder();
+
+        for (int i = 1; i < 10; i++) {
+            for (int j = 1; j <= i; j++) {
+                asterisks.append("*");
+            }
+            asterisks.append("\n");
+        }
+        return asterisks.toString();   
     }
-}
+}

package.bluej

@@ -1,27 +1,27 @@
 #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
-objectbench.width=484
+editor.fx.0.height=709
+editor.fx.0.width=631
+editor.fx.0.x=1051
+editor.fx.0.y=144
+objectbench.height=152
+objectbench.width=633
 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.frame.width=508
+package.divider.vertical=0.7557603686635944
+package.editor.height=485
+package.editor.width=531
+package.editor.x=1057
+package.editor.y=47
+package.frame.height=709
+package.frame.width=657
 package.numDependencies=3
 package.numTargets=6
 package.showExtends=true