Loops LAb

NumberUtilities.java

@@ -4,29 +4,61 @@
 public class NumberUtilities {
     
     public static String getRange(int start) {
-        return null;
+        StringBuilder range = new StringBuilder();
+            for (int i = 0; i< start; i++){
+                range.append(i);
+        }
+        return range.toString();
     }
+
     
     public static String getRange(int start, int stop) {
-        return null;
+        StringBuilder range = new StringBuilder();
+            for (int i = start; i< stop; i++){
+                range.append(i);
+        }
+        return range.toString();
     }
 
 
     public static String getRange(int start, int stop, int step) {
-        return null;
+        StringBuilder range = new StringBuilder();
+            for (int i = start; i< stop; i += step){
+                range.append(i);
+        }
+        return range.toString();
     }
     
     public static String getEvenNumbers(int start, int stop) {
-        return null;
+        StringBuilder range = new StringBuilder();
+            
+           for (int i = start; i < stop; i++){
+                if( i % 2 == 0){
+                   range.append(i);
+                }        
+           }
+           return range.toString();
     }
 
-
     public static String getOddNumbers(int start, int stop) {
-        return null;
+        StringBuilder range = new StringBuilder();
+            
+           for (int i = start; i < stop; i++){
+                if( i % 2 != 0){
+                   range.append(i);
+                }        
+           }
+           return range.toString();
     }
 
 
     public static String getExponentiations(int start, int stop, int exponent) {
-        return null;
+        StringBuilder range = new StringBuilder();
+            for (int i = start; i <= stop; i++){
+                double result1 = Math.pow(i, exponent);
+                int result2 = (int) result1;
+                range.append(result2);
+        }
+        return range.toString();
     }
 }

TableUtilities.java

@@ -2,14 +2,41 @@
 
 public class TableUtilities {
     public static String getSmallMultiplicationTable() {
-        return null;
+        StringBuilder timesTable = new StringBuilder();
+        int x;
+        int y;
+        for (x = 1; x <= 5; x++){
+            for (y = 1; y <= 5; y++){
+                timesTable.append(String.format("%3d |", x*y));
+            }
+                timesTable.append("\n");
+        }
+        return timesTable.toString();
     }
 
     public static String getLargeMultiplicationTable() {
-        return null;
+        StringBuilder timesTable = new StringBuilder();
+        int x;
+        int y;
+        for (x = 1; x <= 10; x++){
+            for (y = 1; y <= 10; y++){
+                timesTable.append(String.format("%3d |", x*y));
+            }
+                timesTable.append("\n");
+        }
+        return timesTable.toString();
     }
 
     public static String getMultiplicationTable(int tableSize) {
-        return null;
+        StringBuilder timesTable = new StringBuilder();
+        int x;
+        int y;
+        for (x = 1; x <= tableSize; x++){
+            for (y = 1; y <= tableSize; y++){
+                timesTable.append(String.format("%3d |", x*y));
+            }
+                timesTable.append("\n");
+        }
+        return timesTable.toString();
     }
 }

TriangleUtilities.java

@@ -3,19 +3,47 @@
 public class TriangleUtilities {
 
     public static String getRow(int numberOfStars) {
-        return null;
+        StringBuilder width = new StringBuilder();
+            for (int i = 0; i< numberOfStars; i++){
+                width.append("*");
+        }
+        return width.toString();        
     }
     
     public static String getTriangle(int numberOfRows) {
-        return null;
+        StringBuilder star = new StringBuilder();
+            for (int i = 0; i< numberOfRows; i++){
+                for (int a = 0; a <= i; a++){
+                    if (a<=i)
+                    star.append("*");
+                }
+                star.append("\n");
+        }
+        return star.toString(); 
     }
 
 
     public static String getSmallTriangle() {
-        return null;
+        StringBuilder star = new StringBuilder();
+            for (int i = 0; i<4; i++){
+                for (int a = 0; a <= i; a++){
+                    if (a<=i)
+                    star.append("*");
+                }
+                star.append("\n");
+        }
+        return star.toString(); 
     }
 
     public static String getLargeTriangle() {
-        return null;
+        StringBuilder star = new StringBuilder();
+            for (int i = 0; i<9; i++){
+                for (int a = 0; a <= i; a++){
+                    if (a<=i)
+                    star.append("*");
+                }
+                star.append("\n");
+        }
+        return star.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.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.x=752
+editor.fx.0.y=-956
+objectbench.height=165
+objectbench.width=821
 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=0.7546362339514978
+package.editor.height=522
+package.editor.width=719
+package.editor.x=-155
+package.editor.y=-970
 package.frame.height=759
-package.frame.width=508
+package.frame.width=845
 package.numDependencies=3
 package.numTargets=6
 package.showExtends=true