在 Java 中反转数字的输出 [英] Reversing the output of numbers in Java

问题描述

我正在尝试做一个数字系统计算器，但只使用控制或重复结构.这是我的示例:

I'm trying to do a number system calculator but only using the control or repetitive structures. Here's my sample:

int base = 0, given = 0, remainder = 0;
// input given here
System.out.print("The answer is: ");
if (base == 2){
    while(given != 0){
    remainder = given % base;
    given /= base;
    System.out.print("" + remainder);
    }
}

输出如下:

Input: 32
The answer is: 000001

问题是，由于 32 的二进制是 100000 而不是 000001，我如何将输出反转为 100000?条件是除了三个重复结构:for、while 和 do-while 和使用决定性结构:if、else-if 和 for 外，不要使用任何东西.

The question is, how would I reverse the output to 100000 since the binary of 32 is 100000 and not 000001? The condition is not to use anything except the three repetitive structures: for, while and do-while and using decisive structures: if, else-if and for.

推荐答案

您可以将数字连接成一个 String 并在循环后打印:

You can concatenate the digits into a String and print it after the loop:

String output = "";
if (base == 2){
    while(given != 0){
        remainder = given % base;
        given /= base;
        output = remainder + output;
    }
    System.out.println(output);
}

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