进制转换

package c;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class JinZhiTest
{
	static String string;
	static BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
   public static void fun(int num,int n) throws IOException
   {
	   
	   boolean flag=true;
	   int []b =new int[8];
	   int count=0;
	   while(flag)
	   {
		   int a=num%n;
		   num/=n;
		   b[count]=a;
		   count++;
		   if(num/n==1||num/n==0)
		   {
			   b[count]=num/2;
			   flag=false;
		   }
	   }
	for(int i=7;i>=0;i--)
	{
		System.out.print(b[i]+" ");
	}
   }
   public static void main(String[] args) throws IOException
	{
	  
		System.out.println("请输入你要转换的数:");
		String s=br.readLine();
		int number=Integer.parseInt(s);
		System.out.println(number+"的二进制表示形式是:"+Integer.toBinaryString(number));
		System.out.print(number+"的三进制表示形式是:");
		fun(number,3);
		System.out.println();
		System.out.print(number+"的五进制表示形式是:");
		fun(number,5);
		System.out.println();
		System.out.println(number+"的八进制表示形式是:"+Integer.toOctalString(number));
		System.out.println(number+"的十进制表示形式是:"+number);
		System.out.println(number+"的十六进制表示形式是:"+Integer.toHexString(number));
		
	}
}