factorial

Factorial.ctxt

+#BlueJ class context
+comment0.target=Factorial
+comment1.params=value
+comment1.target=java.math.BigInteger\ factorialOf(java.lang.Integer)
+numComments=2

Factorial.java

 
 
 import java.math.BigInteger;
-
+import java.util.stream.LongStream;
 public class Factorial {
 
     public BigInteger factorialOf(Integer value){
-        return null;
+        
+        return BigInteger.valueOf(
+            LongStream.rangeClosed(1, value).reduce(1, (x, y) -> x * y)
+        );    
+      
     }
 
 }

FactorialTest.ctxt

+#BlueJ class context
+comment0.target=FactorialTest
+comment1.params=
+comment1.target=void\ setUp()
+comment2.params=
+comment2.target=void\ factorialOfTest()
+numComments=3

IntegerPrinter.ctxt

+#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

IntegerPrinterTest.ctxt

+#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

LargestInteger.ctxt

+#BlueJ class context
+comment0.target=LargestInteger
+comment1.params=integers
+comment1.target=java.lang.Integer\ findLargestNumberUsingConditional(java.lang.Integer[])
+comment2.params=integers
+comment2.target=java.lang.Integer\ findLargestNumberUsingMathMax(java.lang.Integer[])
+numComments=3

LargestIntegerTest.ctxt

+#BlueJ class context
+comment0.target=LargestIntegerTest
+comment1.params=
+comment1.target=void\ setUp()
+comment2.params=
+comment2.target=void\ findLargestNumberUsingConditionalTest()
+comment3.params=
+comment3.target=void\ findLargestNumberUsingMathMaxTest()
+numComments=4

NormalizeAngle.ctxt

+#BlueJ class context
+comment0.target=NormalizeAngle
+comment1.params=angle
+comment1.target=java.lang.Integer\ normalizeValueUsingModulo(java.lang.Integer)
+comment2.params=integer
+comment2.target=java.lang.Integer\ normalizeValueUsingFloorMod(java.lang.Integer)
+comment3.params=args
+comment3.target=void\ main(java.lang.String[])
+numComments=4

NormalizeAngleTest.ctxt

+#BlueJ class context
+comment0.target=NormalizeAngleTest
+comment1.params=
+comment1.target=void\ setUp()
+comment2.params=
+comment2.target=void\ normalizeValueUsingModuloTest()
+comment3.params=
+comment3.target=void\ normalizeValueUsingFloorModTest()
+numComments=4

ShortCalculator.ctxt

+#BlueJ class context
+comment0.target=ShortCalculator
+numComments=1

ShortCalculatorTest.ctxt

+#BlueJ class context
+comment0.target=ShortCalculatorTest
+numComments=1