Java十进制到十六进制的使用基础

我一直在研究数制计算器 (refer to my binary question)

Enter Number: 165
Enter Base: 16
The answer: A105

这是我的代码:

int given = 0, base = 0, remainder = 0; 
String output = "";
if (base == 2||base == 8){
    while(given != 0){
        remainder = given % base;
        given /= base;
        output = remainder + output;
    }
    System.out.println(output);
}
else if (base == 16){
    while (given > 0){
        remainder = given % base;
        if (remainder <= 10){
            System.out.print("");
        }
        switch(remainder){
            case 10:System.out.print("A");break;
            case 11:System.out.print("B");break;
            case 12:System.out.print("C");break;
            case 13:System.out.print("D");break;
            case 14:System.out.print("E");break;
            case 15:System.out.print("F");break;
        }
        given /= base;
        output = remainder + output;
    }
    System.out.println(output);
}

我应该选择继续切换结构,还是我的代码有问题?

编辑:为了清楚起见, output 变量将反转给定的特定值。如果我把一个37作为十进制数转换成二进制数,它就会输出 101001 .