String Merge

ardallie · ardallie · commit e819b93acd5c · 2021-08-15T18:06:50.000+01:00
diff --git a/src/easy/StringMerge.java b/src/easy/StringMerge.java
@@ -0,0 +1,42 @@
+package easy;
+
+/**
+ * Have the function StringMerge(str) read the str parameter being passed
+ * which will contain a large string of alphanumeric characters with
+ * a single asterisk character splitting the string evenly into two separate strings.
+ * Your goal is to return a new string by pairing up the characters
+ * in the corresponding locations in both strings.
+ * For example: if str is "abc1*kyoo" then your program should return the string akbyco1o
+ * because a pairs with k, b pairs with y, etc.
+ * The string will always split evenly with the asterisk in the center.
+ */
+public class StringMerge {
+
+  /**
+   * String Merge function.
+   *
+   * @param str input string
+   * @return a new string with paired up characters
+   */
+  public static String stringMerge(String str) {
+    StringBuilder output = new StringBuilder();
+    String[] strArr = str.trim().split("\\*");
+    String str1 = strArr[0];
+    String str2 = strArr[1];
+    for (int i = 0; i < str1.length(); i++) {
+      output.append(str1.charAt(i)).append(str2.charAt(i));
+    }
+    return output.toString();
+  }
+
+  /**
+   * Entry point.
+   *
+   * @param args command line arguments
+   */
+  public static void main(String[] args) {
+    String result = stringMerge("123hg*aaabb");
+    System.out.println(result);
+  }
+
+}
