没有预定义方法（JAVA）的二进制到六进制十进制

根据您的要求，首先必须将二进制no转换为十进制，然后转换为十六进制。因此，请尝试按照您的要求运行该程序：

import java.util.Scanner;public class BinaryToHexa{    public static void main(String args[])    {        int binnum, rem;        String hexdecnum="";        int decnum=0;        char hex[]={'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};        Scanner scan = new Scanner(System.in);        System.out.print("Enter Binary Number : ");        binnum = scan.nextInt();        // converting the number in decimal format        int i=0;        while(binnum>0)        { rem = binnum%10; binnum=binnum/10; decnum = decnum + (int)(rem*Math.pow(2,i)); i++;        }        // converting the number in hexadecimal format        while(decnum>0)        { rem = decnum%16; hexdecnum = hex[rem] + hexdecnum; decnum = decnum/16;        }        System.out.print("Equivalent Hexadecimal Value is :n");        System.out.print(hexdecnum);    }}

如果您有任何疑问，请告诉我。

谢谢…