static String toHex(int n) { Deque<String> deque = new LinkedList<>(); while (n / 16 != 0) { deque.push(Integer.toHexString(n % 16)); n = n / 16; if (n / 16 == 0) { deque.push(Integer.toHexString(n % 16)); } } StringBuilder sb = new StringBuilder(); for (String dqString : deque) { sb.append(dqString); } return sb.toString(); }
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大黑与small白