将两位数格式的整数保存在Java中的变量中

问题描述

如何在 Java 中以两位数格式存储整数?喜欢我可以设置

How can I store an integer in two digit format in Java? Like can I set

int a=01;

并将其打印为 01?此外，不只是打印，如果我说 int b=a;，b 也应该将其值打印为 01.

and print it as 01? Also, not only printing, if I say int b=a;, b should also print its value as 01.

推荐答案

我想这就是你要找的:

int a = 1;
DecimalFormat formatter = new DecimalFormat("00");
String aFormatted = formatter.format(a);

System.out.println(aFormatted);

或者，更简单地说:

int a = 1;
System.out.println(new DecimalFormat("00").format(a));

int 只是存储一个数量，01 和 1 代表相同的数量，因此它们的存储方式相同.

An int just stores a quantity, and 01 and 1 represent the same quantity so they're stored the same way.

DecimalFormat 构建一个字符串，表示特定格式的数量.

DecimalFormat builds a String that represents the quantity in a particular format.