package com.ds.detect; import java.util.Scanner; public class ToHEX{ public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("请出入一个十进制数"); int num = sc.nextInt(); toHex(num); System.out.println("输入数字的16进制结果是:"+Integer.toHexString(num));// java自带的转换十六进制方法 sc.close(); } public static void toHex(int num) { if (num == 0) { System.out.println(‘0‘); return; } char[] chs = {‘0‘, ‘1‘, ‘2‘, ‘3‘, ‘4‘, ‘5‘, ‘6‘, ‘7‘, ‘8‘, ‘9‘, ‘A‘,‘B‘, ‘C‘, ‘D‘, ‘E‘, ‘F‘}; char[] arr = new char[8]; int pos = arr.length; while (num != 0) { arr[--pos] = chs[num & 15]; num = num >>> 4; } for (int i = pos; i < arr.length; i++) { System.out.print(arr[i]); } } }
时间: 2024-10-01 04:44:07