Number Addition

ardallie · ardallie · commit ecb4fa9491c0 · 2021-08-14T13:26:05.000+01:00
diff --git a/src/easy/NumberAddition.java b/src/easy/NumberAddition.java
@@ -0,0 +1,46 @@
+package easy;
+
+/**
+ * Have the function NumberSearch(str) take the str parameter,
+ * search for all the numbers in the string, add them together,
+ * then return that final number.
+ * ---
+ * For example: if str is "88Hello 3World!" the output should be 91.
+ * You will have to differentiate between single digit numbers
+ * and multiple digit numbers like in the example above.
+ * So "55Hello" and "5Hello 5" should return two different answers.
+ * Each string will contain at least one letter or symbol.
+ */
+public class NumberAddition {
+
+  /**
+   * Number Addition function.
+   *
+   * @param str input string
+   * @return the final number
+   */
+  private static int numberAddition(String str) {
+    String cleaned = str.replaceAll("[^0-9]", " ");
+    String[] splitNum = cleaned.split(" +");
+    int sum = 0;
+    for (String c : splitNum) {
+      if (!c.equals("")) {
+        sum += Integer.parseInt(c);
+      }
+    }
+    return sum;
+  }
+
+  /**
+   * Entry point.
+   *
+   * @param args command line arguments
+   */
+  public static void main(String[] args) {
+    var result1 = numberAddition("Chillhouse Mix 2 (2001)");
+    System.out.println(result1);
+    var result2 = numberAddition("Cafe del Mar 5 (1998)");
+    System.out.println(result2);
+  }
+
+}
