Loops-Numbers of TrianglesTables

NumberUtilities.java

@@ -1,32 +1,54 @@
- 
-
 
 public class NumberUtilities {
-    
-    public static String getRange(int start) {
-        return null;
+    public static String getRange(int stop) {
+        String num = "";
+        for (int x=0; x <stop; x++){
+            num += x;
+        }
+        return num;
     }
-    
+
     public static String getRange(int start, int stop) {
-        return null;
+        String num = "";
+        for (int x= start; x < stop; x++){
+            num += x;
+        }
+        return num;
     }
 
-
     public static String getRange(int start, int stop, int step) {
-        return null;
+        String num = "";
+        for (int x= start; x < stop; x+=step){
+            num += x;
+        }
+        return num;
     }
-    
+
     public static String getEvenNumbers(int start, int stop) {
-        return null;
+        String num = "";
+        for (int x = start; x < stop; x++){
+            if (x%2 == 0){
+                num+=x;
+            }
+        }
+        return num;
     }
 
-
     public static String getOddNumbers(int start, int stop) {
-        return null;
+        String num = "";
+        for (int x = start; x < stop; x++){
+            if (x%2 != 0){
+                num+=x;
+            }
+        }
+        return num;
     }
 
-
     public static String getExponentiations(int start, int stop, int exponent) {
-        return null;
+        String num ="";
+        for (int x = start; x <= stop; x++){
+            num += (int)Math.pow(x,exponent);
+        }
+        return num;
+    }
     }
-}

TableUtilities.java

@@ -1,15 +1,42 @@
- 
 
 public class TableUtilities {
     public static String getSmallMultiplicationTable() {
-        return null;
+        String str = "";
+        for (int x=1; x <=5; x++){
+            int num = 0;
+            for (int j=1; j <=5; j++){
+                num = x * j;
+                str += String.format ("%3d |", num);
+            }
+            str +="\n";
+        }
+        return str;
     }
 
     public static String getLargeMultiplicationTable() {
-        return null;
+        String str= "";
+        for (int x=1;x<=10; x++){
+            int num =0;
+            for (int j=1; j <=10;j++){
+                num = x * j;
+                str += String.format ("%3d |", num);
+            }
+            str +="\n";
+        }
+        return str;
     }
 
+
     public static String getMultiplicationTable(int tableSize) {
-        return null;
+        String str ="";
+        for (int x=1;x<=tableSize; x++){
+            int num = 0;
+            for (int j=1; j <=tableSize;j++){
+                num = x * j;
+                str += String.format ("%3d |", num);
+            }
+            str +="\n";
+        }
+        return str;
     }
 }

TriangleUtilities.java

@@ -1,21 +1,44 @@
- 
 
 public class TriangleUtilities {
-
     public static String getRow(int numberOfStars) {
-        return null;
+        String str = "";
+        for (int x = 0; x < numberOfStars; x++){
+            str += "*";
+        }
+        return str;
     }
-    
+
     public static String getTriangle(int numberOfRows) {
-        return null;
+        String str = "";
+        for (int x=1; x<=numberOfRows; x++){
+            for (int j=1; j<= x; j++){
+                str += "*";
+            }
+            str+="\n";
+        }
+        return str;
     }
 
-
     public static String getSmallTriangle() {
-        return null;
+        String str = "";
+        for (int x=1; x<=4; x++){
+            for (int j=1; j<= x; j++){
+                str += "*";
+            }
+            str+="\n";
+        }
+        return str;
     }
 
     public static String getLargeTriangle() {
-        return null;
+        String str = "";
+        for (int x =1; x<=9; x++){
+            for (int j =1; j<=x; j++){
+                str +="*";
+            }
+                str+="\n";
+        }
+        return str;
     }
 }
+

package.bluej

@@ -2,25 +2,25 @@
 dependency1.from=NumberUtilitiesTest
 dependency1.to=NumberUtilities
 dependency1.type=UsesDependency
-dependency2.from=TriangleUtilitiesTest
-dependency2.to=TriangleUtilities
+dependency2.from=TableUtilitiesTest
+dependency2.to=TableUtilities
 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.height=709
 editor.fx.0.width=800
-editor.fx.0.x=537
-editor.fx.0.y=28
-objectbench.height=164
-objectbench.width=484
-package.divider.horizontal=0.6
-package.divider.vertical=0.7560627674750356
-package.editor.height=523
+editor.fx.0.x=480
+editor.fx.0.y=23
+objectbench.height=152
+objectbench.width=286
+package.divider.horizontal=0.6004098360655737
+package.divider.vertical=0.7557603686635944
+package.editor.height=485
 package.editor.width=382
 package.editor.x=20
-package.editor.y=57
-package.frame.height=759
+package.editor.y=23
+package.frame.height=709
 package.frame.width=508
 package.numDependencies=3
 package.numTargets=6