countLines function

int countLines(
  1. String txt
)

Implementation

int countLines(String txt) {
  // Initialize a counter variable to store the number of lines.

  int count = 0;

  // Loop through each character in the string.

  for (int i = 0; i < txt.length; i++) {
    // If the character is a newline character, increment the counter.

    if (txt[i] == '\n') {
      count++;
    }
  }

  // Return the counter value.

  return count;
}