Java小练习 十进制转二进制与十六进制

import java.util.*;
/**
*十进制转二进制与十六进制的练习
*@author yrwan
*/
public class DecToBinAndHex{
	public static void main(String[] args){
		System.out.print("输入待转换的十进制数字：");
		Scanner n = new Scanner(System.in);
		DecToBinAndHex(n.nextInt());
	}
	/**
	*@param n 传入的10进制数字
	*/
	public static void DecToBinAndHex(int n){
		int n1 = n;
		int n2 = n;
		int b = 0;//Bin
		String h = "";//Hex
		int i =0; //位数
		int temp1 = 0;//
		int temp2 = 0;//
		//10 to 2
		System.out.print(n1 + "的二进制为：");
		while(n1 != 0){
			temp1 = n1 % 2;
			n1 /= 2;
			temp1 *= Math.pow(10, i);
			b += temp1;
			i++;
		}
		System.out.println(b);
		//10 to 16
		System.out.print(n2 + "的十六进制为：");
		while(n2 != 0){
			temp2 = n2 & 15;//取出末尾的4位数
			h += (temp2 > 9)? (char)('A' + (temp2 - 10)) + "" : temp2 + "";
			n2 = n2 >>> 4;
		}
		//对h进行反转
		StringBuffer str=new StringBuffer(h);
		str.reverse();
		System.out.println(str.toString());
	}
}

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输入待转换的十进制数字：60
60的二进制为：111100
60的十六进制为：3C