如何干掉程序代码'二进制到十进制'

Question

/*
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package binary_to_decaimal;


import java.util.*;
public class Binary_to_Decaimal {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        int n,dec=0,i=0,N=0;
        Scanner in=new Scanner(System.in);
        System.out.println("Enter number in binary form like 0 1 or 1 0");
        n=in.nextInt();
        while(n > 0)

        {
            dec = n % 10;
             N =N+ dec *( int)Math.pow(2,i);
            i++;
            n=n/10;
        }
        System.out.println("Decimal \t"+N);
    }
}

当二进制数为11（3）并得到所需的十进制数时，如何在程序上运行？

Answer 1

可能会对您有所帮助：

public int getDecimalFromBinary(int binary){

    int decimal = 0;
    int power = 0;
    while(true){
        if(binary == 0){
            break;
        } else {
            int tmp = binary%10;
            decimal += tmp*Math.pow(2, power);
            binary = binary/10;
            power++;
        }
    }
    return decimal;
}