import java.util.Map; import java.util.HashMap; import java.util.Deque; import java.util.LinkedList; import java.lang.StringBuffer; public class Example01{ 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) { Map<Integer, String> map = new HashMap<>(); Deque<String> stack = new LinkedList<>(); map.put(10, "A"); map.put(11, "B"); map.put(12, "C"); map.put(13, "D"); map.put(14, "E"); map.put(15, "F"); do { int yu = n % 16; String v = yu > 9 ? map.get(yu) : String.valueOf(yu); stack.push(v); n = n / 16; } while (n != 0); StringBuffer hex = new StringBuffer(); while(stack.size() != 0){ hex.append(stack.poll()); } return hex.toString(); } }
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