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change StringCompression.java #14

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change StringCompression.java #14

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13 changes: 13 additions & 0 deletions src/main/java/com/ctci/arraysandstrings/StringCompression.java
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,9 @@ private static String compressString(String str) {
StringBuilder compressedSb = new StringBuilder();
int countConsecutive = 0;
for (int i = 0; i < str.length(); i++) {
if(stringContainsNumber(str)) {
return str;
}
countConsecutive++;

/* If next character is different than current, append this char to result. */
Expand All @@ -28,6 +31,16 @@ private static String compressString(String str) {
}
return compressedSb.length() < str.length() ? compressedSb.toString() : str;
}

private static boolean stringContainsNumber(String str) {
int[] numArr = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
for(int i = 0; i < numArr.length; i++) {
if(str.contains(String.valueOf(numArr[i]))) {
return true;
}
}
return false;
}

public static void main(String[] args) {
System.out.println("aabccccaaa: " + compressString("aabccccaaa"));
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