diff --git a/Exercise_09/Exercise_09_04/Exercise_09_04.java b/Exercise_09/Exercise_09_04/Exercise_09_04.java
index 39212f00..2174b0fb 100644
--- a/Exercise_09/Exercise_09_04/Exercise_09_04.java
+++ b/Exercise_09/Exercise_09_04/Exercise_09_04.java
@@ -12,9 +12,9 @@ public static void main(String[] args) {
 		// Displays the first 50 random integers between 0 and 100
 		for (int i = 1; i <= 50; i++) {
 			if (i % 10 == 0)
-				System.out.printf("%5d\n", randomNumber.nextInt(1000));
+				System.out.printf("%5d\n", randomNumber.nextInt(100));
 			else
-				System.out.printf("%5d", randomNumber.nextInt(1000));
+				System.out.printf("%5d", randomNumber.nextInt(100));
 		}
 	}
-}
\ No newline at end of file
+}
diff --git a/Exercise_10/Exercise_10_01/Time.java b/Exercise_10/Exercise_10_01/Time.java
index 437e9e9b..abf3f19f 100644
--- a/Exercise_10/Exercise_10_01/Time.java
+++ b/Exercise_10/Exercise_10_01/Time.java
@@ -66,11 +66,11 @@ public void setTime(long elapseTime) {
 
 		if (elapseTime > 0) {
 			totalSeconds = elapseTime / 1000;
-			second += totalSeconds % 60;
+			second = totalSeconds % 60;
 			totalMinutes = totalSeconds / 60;
-			minute += totalMinutes % 60;
+			minute = totalMinutes % 60;
 			totalHours = totalMinutes / 60;
-			hour += totalHours % 24;
+			hour = totalHours % 24;
 		}
 	}
 }
\ No newline at end of file