Fixes: #21

Conversions/DecimalToBinary.java

@@ -0,0 +1,25 @@
+package Conversions;
+
+import java.util.ArrayList;
+
+public class DecimalToBinary {
+
+  public static void main(String[] args) {
+    // Example to just show.
+    decimalToBcd(15);
+  }
+  /**
+   * Converts the decimal to Binary format.
+   *
+   * @input the integer that to be converted to binary.
+   */
+  public static void decimalToBcd(int input) {
+    ArrayList<Integer> num = new ArrayList<Integer>();
+    while (input > 0) {
+      int temp = input % 2;
+      input = input / 2;
+      num.add(0, temp);
+    }
+    System.out.println(num.toString());
+  }
+}