蓝桥杯 基础练习 十进制转十六进制 JAVA

import java.util.Scanner;
import java.util.Stack;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		if (n == 0) {
			System.out.print(n);
			return;
		}
		Stack<String> stack = new Stack<>();
		while (n != 0) {
			int t = n % 16;
			String s = t + "";
			if (t > 9) {
				switch (t) {
				case 10:
					s = "A";
					break;
				case 11:
					s = "B";
					break;
				case 12:
					s = "C";
					break;
				case 13:
					s = "D";
					break;
				case 14:
					s = "E";
					break;
				case 15:
					s = "F";
					break;

				}
			}
			stack.push(s);
			n /= 16;
		}
		while (!stack.isEmpty()) {
			System.out.print(stack.pop());
		}
	}

}