Tools2

package first;
import java.util.Scanner;
import java.util.Stack;

public class Tools2 {
	private static String toHexadecimal(int num)
	 {
String[] digits = new String[]{"0","1","2","3","4","5","6","7","8","9","A","B","C","D","E","F"};
				String result = "";
				Stack<Integer> Stack = new Stack<Integer>();
				while(num > 0){
					int flag = num % 16;
					Stack.push(flag);
					num = num/16;
				}
				while(!Stack.empty()){
					result = result+digits[Stack.pop()];
				}
				return result;
			}
public static void main(String[] args) {
	 Scanner scanner=new Scanner(System.in);
    System.out.println("请输入十进制:");
   int a=scanner.nextInt();
    System.out.print(toHexadecimal(a));
    
}

}