PR from priagungs

.gitignore

@@ -0,0 +1 @@
+*.class

BubbleSort.java

@@ -0,0 +1,31 @@
+public class BubbleSort {
+    private static Integer[] sort(Integer[] input) {
+        for (int i = 0; i < input.length; i++) {
+            for (int j = i; j < input.length; j++) {
+                if (input[i] > input[j]) {
+                    Integer temp = input[i];
+                    input[i] = input[j];
+                    input[j] = temp;
+                }
+            }
+        }
+        return input;
+    }
+
+    public static void main(String[] args) {
+        if (args.length == 0) {
+            System.out.println("Invalid input");
+        }
+        else {
+            Integer[] input = new Integer[args.length];
+            for (int i = 0; i < args.length; i++) {
+                input[i] = Integer.parseInt(args[i]);
+            }
+            input = sort(input);
+            for (Integer el : input) {
+                System.out.print(el + " ");
+            }
+            System.out.println();
+        } 
+    }
+}

Calender.java

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+public class Calender {
+    public static void main(String[] args) {
+        Integer i = null;
+        if (args.length > 0) {
+            i = Integer.parseInt(args[0]);
+        }
+        switch (i) {
+            case 1: 
+                System.out.println("Januari"); break;
+            case 2: 
+                System.out.println("Februari"); break;
+            case 3: 
+                System.out.println("Maret"); break;
+            case 4: 
+                System.out.println("April"); break;
+            case 5: 
+                System.out.println("Mei"); break;
+            case 6: 
+                System.out.println("Juni"); break;
+            case 7: 
+                System.out.println("Juli"); break;
+            case 8: 
+                System.out.println("Agustus"); break;
+            case 9: 
+                System.out.println("September"); break;
+            case 10: 
+                System.out.println("Oktober"); break;
+            case 11: 
+                System.out.println("November"); break;
+            case 12: 
+                System.out.println("Desember"); break;
+            default: 
+                System.out.println("Wrong input"); break;
+        }
+    }
+}

FactRecursive.java

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+public class FactRecursive {
+    private static int fact(int input) {
+        if (input == 0 || input == 1) {
+            return 1;
+        }
+        else {
+            return input*fact(input-1);
+        }
+    }
+    public static void main(String[] args) {
+        if (args.length != 1) {
+            System.out.println("Error Input!");
+        }
+        else {
+            System.out.println(fact(Integer.parseInt(args[0])));
+        }
+    }
+}

Factorial.java

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+public class Factorial {
+    private static Integer fact (Integer input) {
+        Integer temp = 1;
+        for (int i = 1; i <= input; i++) {
+            temp *= i;
+        }
+        return temp;
+    }
+
+    public static void main(String[] args) {
+        if (args.length != 1) {
+            System.out.println("Error Input!");
+        }
+        else {
+            System.out.println(fact(Integer.parseInt(args[0])));
+        }
+    }
+}

HelloWorld.java

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+public class HelloWorld {
+    public static void main(String[] args) {
+        System.out.println("Hello World!");
+    }
+}

Scoring.java

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+public class Scoring {
+    public static void main(String[] args) {
+        Integer score = null;
+        if (args.length > 0) {
+            score = Integer.parseInt(args[0]);
+        }
+        if (score > 80) {
+            System.out.println("A");
+        }
+        else if (score > 50) {
+            System.out.println("B");
+        }
+        else {
+            System.out.println("E");
+        }
+    }
+}

SumHari.java

@@ -0,0 +1,49 @@
+public class SumHari {
+    private static Integer jumlahHari (Integer tahun, Integer bulan) {
+        if (bulan > 12 || bulan < 0) {
+            return -1;
+        }
+        switch (bulan) {
+            case 1:
+                return 31;
+            case 2:
+                if (tahun % 4 == 0) {
+                    return 29;
+                }
+                else {
+                    return 28;
+                }
+            case 3:
+                return 31;
+            case 4:
+                return 30;
+            case 5:
+                return 31;
+            case 6:
+                return 30;
+            case 7:
+                return 31;
+            case 8:
+                return 31;
+            case 9:
+                return 30;
+            case 10:
+                return 31;
+            case 11:
+                return 30;
+            case 12:
+                return 31;
+            default:
+                return -1;
+        }
+    }
+
+    public static void main(String[] args) {
+        if (args.length == 2) {
+            System.out.println(jumlahHari(Integer.parseInt(args[0]), Integer.parseInt(args[1])));
+        }
+        else {
+            System.out.println("Wrong input!");
+        }
+    }
+}