// For a balanced substring with one char, any length works (all chars are equal) maxlen = Math.max(maxlen, getLength(s, 'a')); // Consider 'b' and 'c' maxlen = Math ...

Java’s String class encapsulates an array of bytes. A byte can be converted to a char, in which case, String becomes an array of characters used to compose words, sentences, or any other data you want ...