java通过16进制转10进制的算法实现
进制转换
http://www.nowcoder.com/questionTerminal/8f3df50d2b9043208c5eed283d1d4da6
import java.util.Scanner;
public class Main{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
while(sc.hasNext()){
String str = sc.nextLine();
String num = str.substring(2,str.length());
int result = 0;
int power = 1;
for(int i = num.length() - 1; i >= 0; i--){
char c = num.charAt(i);
if(c >= '0' && c <= '9'){
result += (c - '0') * power;
}else if (c >= 'A' && c <= 'F'){
result += (c - 'A' + 10) * power;
}
power *= 16;
}
System.out.println(result);
}
sc.close();
}
}
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