如何在int中添加空白空间？ [英] How to add empty space inside int?

问题描述

假设我想要打印数字100000000.乍一看很难说这个数字代表了多少百万。是一千万还是一亿？如何让Java中的大数字看起来更具可读性？像这样的事情会很好： 100 000 000 。你可以马上知道这个数字是1亿。

解决方案

您也可以尝试DecimalFormat;

  DecimalFormat formatter = new DecimalFormat（＃，###）; 
 System.out.println（formatter.format（100000））; 
  

结果：

  1000>> 1,000 
 10000>> 10,000 
 100000>> 100,000 
 1000000>> 1,000,000 
  pre> 
Let's say I want to print the number 100000000. At first sight it is difficult to tell how many millions this number is representing. Is it 10 million or 100 million? How can I make big numbers in Java look more readable? Something like this for instance would be great: 100 000 000. You can tell right away that the number is 100 million.
解决方案
You can also try DecimalFormat;
DecimalFormat formatter = new DecimalFormat("#,###");
System.out.println(formatter.format(100000));
Results:
1000>>1,000
10000>>10,000
100000>>100,000
1000000>>1,000,000


                        
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