EX OH

ardallie · ardallie · commit b07b402b1495 · 2021-08-11T23:11:27.000+01:00
diff --git a/src/easy/ExOh.java b/src/easy/ExOh.java
@@ -0,0 +1,49 @@
+package easy;
+
+/**
+ * Have the function ExOh(str) take the str parameter being passed
+ * and return the string true if there is an equal number of x's and o's,
+ * otherwise return the string false. Only these two letters
+ * will be entered in the string, no punctuation or numbers.
+ * For example: if str is "xooxxxxooxo" then the output
+ * should return false because there are 6 x's and 5 o's.
+ */
+public class ExOh {
+
+  /**
+   * EX OH function.
+   *
+   * @param str input string
+   * @return "true" if there is an equal number of x's and o's
+   */
+  private static String exOh(String str) {
+    int balance = 0;
+    String[] letters = str.toLowerCase().split("");
+    for (String l : letters) {
+      switch (l) {
+        case "x":
+          balance++;
+          break;
+        case "o":
+          balance--;
+          break;
+        default:
+          break;
+      }
+    }
+    return balance == 0 || str.length() == 0 ? "true" : "false";
+  }
+
+  /**
+   * Entry point.
+   *
+   * @param args command line arguments
+   */
+  public static void main(String[] args) {
+    var result1 = exOh("xxxooo");
+    System.out.println(result1);
+    var result2 = exOh("xxxoo");
+    System.out.println(result2);
+  }
+
+}
