程序代码：

import java.util.*;

public class HexadecimalConversionTest {

    public static void main(String[] args) {
        while (true) {
            Scanner in = new Scanner(System.in);
            System.out.print("Input number:");
            int inputNumber = Integer.valueOf(in.nextLine());
            System.out.println("Binary:" + Integer.toBinaryString(inputNumber));
            System.out.println("Octal:" + Integer.toOctalString(inputNumber));
            System.out.println("Hex:" + Integer.toHexString(inputNumber));
        }
    }
}

程序代码：

Input number:1
Binary:1
Octal:1
Hex:1
Input number:8
Binary:1000
Octal:10
Hex:8
Input number:16
Binary:10000
Octal:20
Hex:10
Input number:100
Binary:1100100
Octal:144
Hex:64