diff --git a/Bubble.java b/Bubble.java
new file mode 100644
index 0000000..c4115fd
--- /dev/null
+++ b/Bubble.java
@@ -0,0 +1,28 @@
+//import java.util.Scanner;
+
+public class Bubble {
+
+	public static void main(String[] args){
+
+		int[] arr = new int[10];
+		int tmp = 0;
+		for (int i=0; i<args.length; i++){
+			arr[i] = Integer.parseInt(args[i]);
+		};
+
+		for (int i=0; i<args.length-1; i++){
+			for (int j=i+1; j<args.length; j++){
+				if (arr[i]>arr[j]){
+					tmp    = arr[i];
+					arr[i] = arr[j];
+					arr[j] = tmp;
+				};
+			};			
+		};
+
+		for (int i=0; i<args.length; i++){
+			System.out.print(arr[i]+" ");
+		};
+
+	}
+}
\ No newline at end of file
diff --git a/BulanTahun.java b/BulanTahun.java
new file mode 100644
index 0000000..195caaa
--- /dev/null
+++ b/BulanTahun.java
@@ -0,0 +1,38 @@
+import java.util.Scanner;
+
+public class BulanTahun {
+	public static void main(String[] args){
+
+		int bulan = Integer.parseInt(args[0]);
+		int tahun = Integer.parseInt(args[1]);
+		int hari = 0;
+
+		//Scanner in = new Scanner(System.in);
+		switch (bulan){
+			case 1 :
+			case 3 :
+			case 5 :
+			case 7 :
+			case 8 :
+			case 10 :
+			case 12 :
+				hari = 31;
+			break;
+			case 4 :
+			case 6 :
+			case 9 :
+			case 11 :
+				hari = 30;
+			break;
+			case 2 :
+				if (((tahun%4==0)&&(tahun%100!=0))||tahun%400==0){
+					hari = 29;
+				} else {
+					hari = 28;
+				}
+			break;
+		}
+
+		System.out.println(hari);
+	}
+}
\ No newline at end of file
diff --git a/Faktorial.java b/Faktorial.java
new file mode 100644
index 0000000..636a9e4
--- /dev/null
+++ b/Faktorial.java
@@ -0,0 +1,17 @@
+import java.util.Scanner;
+
+public class Faktorial {
+	public static void main(String[] args){
+
+		int n = Integer.parseInt(args[0]);
+
+		int fak = 1;
+		//Scanner in = new Scanner(System.in);
+		
+		for (int i=2; i<=n; i++){
+			fak*=i;
+		}
+
+		System.out.println(fak);
+	}
+}
\ No newline at end of file
diff --git a/FaktorialRecursive.java b/FaktorialRecursive.java
new file mode 100644
index 0000000..b7c9dec
--- /dev/null
+++ b/FaktorialRecursive.java
@@ -0,0 +1,23 @@
+import java.util.Scanner;
+
+public class FaktorialRecursive {
+
+	public static int fac(int x){
+
+		if (x==1) {
+			return x;
+		} else {
+			return x*fac(x-1);
+		}
+	}
+
+
+	public static void main(String[] args){
+
+		int n = Integer.parseInt(args[0]);
+
+		int fak = fac(n);
+
+		System.out.println(fak);
+	}
+}
\ No newline at end of file
diff --git a/Score.java b/Score.java
new file mode 100644
index 0000000..cbce0ae
--- /dev/null
+++ b/Score.java
@@ -0,0 +1,26 @@
+import java.util.Scanner;
+
+public class Score {
+	public static void main(String[] args){
+
+		int score = Integer.parseInt(args[0]);
+
+		Scanner in = new Scanner(System.in);
+		
+		//int score = 100;
+
+		//score = in.nextInt();
+
+		if (score>80) {
+			System.out.println("A");
+		} else if (score>60) {
+			System.out.println("B");
+		} else if (score>40) {
+			System.out.println("C");
+		} else if (score>20) {
+			System.out.println("D");
+		} else {
+			System.out.println("E");
+		}
+	}
+}
\ No newline at end of file
diff --git a/SwitchBulan.java b/SwitchBulan.java
new file mode 100644
index 0000000..5393449
--- /dev/null
+++ b/SwitchBulan.java
@@ -0,0 +1,53 @@
+import java.util.Scanner;
+
+public class SwitchBulan {
+	public static void main(String[] args){
+
+		int num = Integer.parseInt(args[0]);
+
+		Scanner in = new Scanner(System.in);
+		
+		String bulan = "tes";
+
+		switch (num){
+			case 1 :
+				bulan = "Januari";
+			break;
+			case 2 :
+				bulan = "Februari";
+			break;
+			case 3 :
+				bulan = "Maret";
+			break;
+			case 4 :
+				bulan = "April";
+			break;
+			case 5 :
+				bulan = "Mei";
+			break;
+			case 6 :
+				bulan = "Juni";
+			break;
+			case 7 :
+				bulan = "Juli";
+			break;
+			case 8 :
+				bulan = "Agustus";
+			break;
+			case 9 :
+				bulan = "September";
+			break;
+			case 10 :
+				bulan = "Oktober";
+			break;
+			case 11 :
+				bulan = "November";
+			break;
+			case 12 :
+				bulan = "Desember";
+			break;
+		}
+
+		System.out.println(bulan);
+	}
+}
\ No newline at end of file