completed IntegerPrinter and Factorial

Factorial.ctxt

@@ -0,0 +1,5 @@
+#BlueJ class context
+comment0.target=Factorial
+comment1.params=value
+comment1.target=java.math.BigInteger\ factorialOf(int)
+numComments=2

Factorial.java

@@ -1,12 +1,17 @@
- 
 
 
 import java.math.BigInteger;
 
 public class Factorial {
 
-    public BigInteger factorialOf(Integer value){
-        return null;
+    public BigInteger factorialOf(int value){
+        BigInteger input = BigInteger.valueOf(value);
+        BigInteger total = BigInteger.valueOf(1);
+
+        for (int i = 1; i <= input.intValue(); i++){
+            total = total.multiply(BigInteger.valueOf(i));
+        }
+        return total;
     }
 
 }

FactorialTest.ctxt

@@ -0,0 +1,7 @@
+#BlueJ class context
+comment0.target=FactorialTest
+comment1.params=
+comment1.target=void\ setUp()
+comment2.params=
+comment2.target=void\ factorialOfTest()
+numComments=3

IntegerPrinter.ctxt

@@ -0,0 +1,11 @@
+#BlueJ class context
+comment0.target=IntegerPrinter
+comment1.params=value
+comment1.target=java.lang.String\ printIntegerAsBinary(int)
+comment2.params=value
+comment2.target=java.lang.String\ printIntegerAsOctal(int)
+comment3.params=value
+comment3.target=java.lang.String\ printIntegerAsHexadecimal(int)
+comment4.params=args
+comment4.target=void\ main(java.lang.String[])
+numComments=5

IntegerPrinter.java

@@ -4,15 +4,15 @@
 public class IntegerPrinter {
 
     public String printIntegerAsBinary(int value){
-        return null;
+        return Integer.toBinaryString(value);
     }
 
     public String printIntegerAsOctal(int value){
-        return null;
+        return String.format("%o",value);
     }
 
     public String printIntegerAsHexadecimal(int value){
-        return null;
+        return String.format("%x",value);
     }
 
     public static void main(String[] args){

IntegerPrinterTest.ctxt

@@ -0,0 +1,11 @@
+#BlueJ class context
+comment0.target=IntegerPrinterTest
+comment1.params=
+comment1.target=void\ setUp()
+comment2.params=
+comment2.target=void\ printIntegerAsBinaryTest()
+comment3.params=
+comment3.target=void\ printIntegerAsHexadecimal()
+comment4.params=
+comment4.target=void\ printIntegerAsOctalTest()
+numComments=5

package.bluej

@@ -1,29 +1,29 @@
 #BlueJ package file
-dependency1.from=LargestIntegerTest
-dependency1.to=LargestInteger
+dependency1.from=IntegerPrinterTest
+dependency1.to=IntegerPrinter
 dependency1.type=UsesDependency
-dependency2.from=NormalizeAngleTest
-dependency2.to=NormalizeAngle
+dependency2.from=LargestIntegerTest
+dependency2.to=LargestInteger
 dependency2.type=UsesDependency
-dependency3.from=FactorialTest
-dependency3.to=Factorial
+dependency3.from=NormalizeAngleTest
+dependency3.to=NormalizeAngle
 dependency3.type=UsesDependency
-dependency4.from=IntegerPrinterTest
-dependency4.to=IntegerPrinter
+dependency4.from=FactorialTest
+dependency4.to=Factorial
 dependency4.type=UsesDependency
-editor.fx.0.height=0
-editor.fx.0.width=0
-editor.fx.0.x=0
-editor.fx.0.y=0
-objectbench.height=101
-objectbench.width=1070
-package.divider.horizontal=0.6
-package.divider.vertical=0.837593984962406
-package.editor.height=550
+editor.fx.0.height=709
+editor.fx.0.width=800
+editor.fx.0.x=240
+editor.fx.0.y=23
+objectbench.height=98
+objectbench.width=637
+package.divider.horizontal=0.5996275605214153
+package.divider.vertical=0.8387096774193549
+package.editor.height=539
 package.editor.width=968
-package.editor.x=59
-package.editor.y=82
-package.frame.height=723
+package.editor.x=99
+package.editor.y=23
+package.frame.height=709
 package.frame.width=1094
 package.numDependencies=4
 package.numTargets=10
@@ -40,8 +40,8 @@ target1.name=Factorial
 target1.showInterface=false
 target1.type=ClassTarget
 target1.width=80
-target1.x=160
-target1.y=10
+target1.x=540
+target1.y=40
 target10.height=50
 target10.name=IntegerPrinterTest
 target10.showInterface=false
@@ -54,29 +54,29 @@ target2.name=NormalizeAngle
 target2.showInterface=false
 target2.type=ClassTarget
 target2.width=120
-target2.x=70
-target2.y=70
+target2.x=520
+target2.y=150
 target3.height=50
 target3.name=IntegerPrinter
 target3.showInterface=false
 target3.type=ClassTarget
 target3.width=110
-target3.x=10
-target3.y=130
+target3.x=20
+target3.y=390
 target4.height=50
 target4.name=ShortCalculator
 target4.showInterface=false
 target4.type=ClassTarget
 target4.width=120
-target4.x=130
-target4.y=130
+target4.x=90
+target4.y=50
 target5.height=50
 target5.name=LargestInteger
 target5.showInterface=false
 target5.type=ClassTarget
 target5.width=120
-target5.x=10
-target5.y=190
+target5.x=260
+target5.y=210
 target6.height=50
 target6.name=LargestIntegerTest
 target6.showInterface=false
@@ -89,19 +89,19 @@ target7.name=ShortCalculatorTest
 target7.showInterface=false
 target7.type=ClassTarget
 target7.width=150
-target7.x=10
-target7.y=250
+target7.x=240
+target7.y=50
 target8.height=50
 target8.name=NormalizeAngleTest
 target8.showInterface=false
 target8.type=UnitTestTargetJunit4
 target8.width=150
-target8.x=10
-target8.y=310
+target8.x=500
+target8.y=140
 target9.height=50
 target9.name=FactorialTest
 target9.showInterface=false
 target9.type=UnitTestTargetJunit4
 target9.width=110
-target9.x=410
-target9.y=260
+target9.x=530
+target9.y=20