ALFIAN - JAVA

.gitignore

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

BubbleSort.java

@@ -0,0 +1,28 @@
+import java.util.Arrays;
+public class BubbleSort {
+
+    /**
+     * @param args the command line arguments
+     */
+    public static void main(String[] args) {
+        // TODO code application logic here
+        int [] nums = Arrays.asList(args).stream().mapToInt(Integer::parseInt).toArray();
+
+        int len = nums.length;
+        for(int i=0; i < len ; ++i){
+          for(int j = i+1 ; j < len ; ++j){
+            if(nums[i] > nums[j]){
+              nums[i] ^= nums[j];
+              nums[j] ^= nums[i];
+              nums[i] ^= nums[j];
+            }
+          }
+        }
+        for(int i=0 ; i < len ; ++i){
+          System.out.print(nums[i]+" ");
+        }
+        System.out.println();
+
+    }
+
+}

Calender.java

@@ -0,0 +1,62 @@
+import java.util.Scanner;
+
+/**
+ *
+ * @author alfian
+ */
+public class Calender {
+
+    /**
+     * @param args the command line arguments
+     */
+
+    public static void main(String[] args) {
+        // TODO code application logic here
+        System.out.println("input number range(1-12): ");
+        Scanner scan = new Scanner(System.in);
+        int input = scan.nextInt();
+
+        switch(input){
+          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("Nopember");
+              break;
+          case 12:
+              System.out.println("Desember");
+              break;
+          default:
+              System.out.println("Please input a number in range 1 - 12");
+        }
+    }
+
+
+}

Factorial.java

@@ -0,0 +1,22 @@
+import java.util.Scanner;
+
+public class Factorial{
+
+
+  public static void main(String[] args) {
+    if(args.length != 1){
+      System.out.println("Usage :");
+      System.out.println("javac Factorial <number>");
+      return;
+    }
+    int number = Integer.parseInt(args[0]);
+    int result = 1;
+    while(number > 1){
+      result *= number;
+      --number;
+    }
+    System.out.println("hasil: "+result);
+
+  }
+
+}

JHari.java

@@ -0,0 +1,60 @@
+public class JHari{
+
+
+  private static boolean isKabisat(int tahun){
+    if(tahun%400 == 0){return true;}
+    else if(tahun%100 == 0){return false;}
+    else if(tahun%4 == 0){return true;}
+
+    return false;
+  }
+
+  public static void main(String[] args) {
+    if(args.length != 2){
+      System.out.println("Usage :");
+      System.out.println("javac JHari <bulan> <tahun>");
+      return;
+    }
+    int bulan = Integer.parseInt(args[0]);
+    int tahun = Integer.parseInt(args[1]);
+
+    if(bulan == 2){
+      if(isKabisat(tahun)){
+        System.out.println("29 hari");
+      }
+      else{
+        System.out.println("28 hari");
+      }
+    }
+    else if(bulan <= 12){
+      switch(bulan){
+        case 1:
+        case 3:
+        case 5:
+        case 7:
+        case 8:
+        case 10:
+        case 12:
+          System.out.println("31 hari");
+          break;
+        default:
+          System.out.println("30 hari");
+      }
+      // cara lain
+      // if(bulan>7){
+      //   bulan-=7;
+      // }
+      // if(bulan%2 == 1){
+      //   System.out.println("31 hari");
+      // }
+      // else{
+      //   System.out.println("30 hari");
+      // }
+    }
+    else{
+      System.out.println("tolong input bulan dalam range(1-12)");
+    }
+
+  }
+
+}

RecursiveFactorial.java

@@ -0,0 +1,21 @@
+public class RecursiveFactorial{
+
+
+  private int factorial(int num){
+    if(num == 0)return 1;
+    return num * factorial(num-1);
+  }
+
+  public static void main(String[] args) {
+    if(args.length != 1){
+      System.out.println("Usage :");
+      System.out.println("javac RecursiveFactorial <number>");
+      return;
+    }
+    int number = Integer.parseInt(args[0]);
+
+    System.out.println("hasil: "+new RecursiveFactorial().factorial(number));
+
+  }
+
+}

Scoring.java

@@ -0,0 +1,34 @@
+public class Scoring{
+
+  public static void main(String[] args) {
+    if(args.length != 1){
+      System.out.println("Usage :");
+      System.out.println("javac <score(0-100)>");
+      return;
+    }
+
+    int score = Integer.parseInt(args[0]);
+    if(score > 100 || score < 0){
+      System.out.println("Usage :");
+      System.out.println("javac <score(0-100)>");
+      return;
+    }
+    if(score > 85){
+      System.out.println("A");
+    }
+    else if(score > 75){
+      System.out.println("B");
+    }
+    else if(score > 65){
+      System.out.println("C");
+    }
+    else if(score > 55){
+      System.out.println("D");
+    }
+    else{
+      System.out.println("E");
+    }
+
+  }
+
+}