Added java/collections and java/error handling sample code

1 files changed, 11 insertions, 0 deletions

diff --git a/java/12-error-handling-2/Maths.java b/java/12-error-handling-2/Maths.java
new file mode 100644
index 0000000..b61a9f2
--- /dev/null
+++ b/java/12-error-handling-2/Maths.java
@@ -0,0 +1,11 @@
+public class Maths {
+	
+	public int factorial(int number) throws MathsException {
+		if (number < 0) {
+			MathsException e = new MathsException("Factorial of " + number + " not defined");
+//			e.setX(100);
+			throw e;
+		}
+		return number == 0 ? 1 : number * factorial(number - 1); 
+	}
+}