Problem 071 Alternative Characters Counting Similar Character

Author: jeanbou

HackerRank/Java/Problem_Solving/Problem071_AlternatingCharacters_CoutningSimilarCharacter_inString.java

@@ -0,0 +1,39 @@
+package hackerRank_JavaProblemSolving;
+
+import java.io.BufferedWriter;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.Scanner;
+
+public class Problem071_AlternatingCharacters_CoutningSimilarCharacter_inString {
+
+ // HINT: Count identical character in sequences
+ static int alternatingCharacters(String s) {
+ int count = 0;
+ for (int i = 0 ; i < s.trim().length()-1; i++) {
+ if (s.charAt(i) == s.charAt(i+1)) {
+ count++;
+ }
+ }
+ return count;
+ }
+
+ private static final Scanner scanner = new Scanner(System.in);
+
+ @SuppressWarnings("unused")
+public static void main(String[] args) throws IOException {
+ BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));
+
+ int q = scanner.nextInt(); // TO IGNORE DUE TO THE BUG OF INITIAL CODE
+ scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");
+ 
+ while(scanner.hasNextLine()) {
+bufferedWriter.write(String.valueOf(alternatingCharacters(scanner.next().toString())));
+ bufferedWriter.newLine();
+}
+
+ bufferedWriter.close();
+
+ scanner.close();
+ }
+}