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());
}
}
——————————
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