import java.util.*; public class Main { public static void main(String[] args) { String hex = toHex(12500); if (hex.equalsIgnoreCase("30D4")) { System.out.println("测试通过"); } else { System.out.println("测试失败"); } } static String toHex(int n) { Deque<String> stack = new LinkedList<>(); StringBuilder sb = new StringBuilder(); int remainder, quotient; do { quotient = n / 16; remainder = n % 16; n = quotient; if (remainder < 10) stack.push(String.valueOf(remainder)); else { switch (remainder) { case 10: stack.push("A"); break; case 11: stack.push("B"); break; case 12: stack.push("C"); break; case 13: stack.push("D"); break; case 14: stack.push("E"); break; case 15: stack.push("F"); break; default: break; } } } while (quotient != 0); while (!stack.isEmpty()) { sb.append(stack.pop()); } return sb.toString(); } }
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