2018-12-21 如果面试问你这个问题，你能答出来吗？JAV

import java.math.BigDecimal;

public class Test {

    public static void main(String[] args) {

        BigDecimal a = BigDecimal.valueOf(0101L);

        BigDecimal b = BigDecimal.valueOf(101L);

        BigDecimal c = BigDecimal.valueOf(0x0101L);

        BigDecimal d = BigDecimal.valueOf(0b0101);
        BigDecimal e = BigDecimal.valueOf(0e0101);

        System.out.println(a);//65
        System.out.println(b);//101
        System.out.println(c);//257
        System.out.println(d);//5
        System.out.println(e);//0.0

        System.out.printf("%010x\n",257);//0000000101   按10位十六进制输出，向右靠齐，左边用0补齐
        System.out.printf("%010o\n",65);//0000000101    按10位八进制输出，向右靠齐，左边用0补齐

        System.out.printf("%x\n",257);//101   按16进制输出
        System.out.printf("%o\n",65);//101   按8进制输出

    }

}