英文:
How can you display 1 as 01 in java?
问题
在Java中使用g.drawString命令时，如何将1显示为01？我已经尝试查找，但不知道应该使用什么术语。
英文:
How can I display 1 as 01 in Java when using the g.drawstring command I have tried to look but I don't know what term I should use.
答案1
得分: 2
你可以这样格式化字符串并显示它：
g.drawString(String.format("%02d", 1));
%02d 用于格式化，其中 02 表示需要时带有前导零的两位数字，d - 十进制数字
英文:
You can format String and display it like this:
g.drawString(String.format("%02d", 1));
%02d is used for formatting, where 02 states for two digits with leading zero as necessary, and d - decimal number
Source: Official Oracle Documentation on formatting numeric strings
答案2
得分: 0
If you want to print a string that contains that number, you can use String.format.
If you write something like String.format("%02d", yourNumber), for yourNumber=1 you will obtain the string 01, so you can use the previous code in a System.out or draw it on the screen.
If you want to use g.drawString, you can use the following code:
g.drawString(String.format("%02d", yourNumber), x, y)
英文:
If you want to print a string that contains that number, you can use String.format.
If you write something like String.format("%02d", yourNumber), for yourNumber=1 you will obtain the string 01, so you can use the previous code in a System.out or draw it on screen.
If you want to use g.drawstring, you can use the following code:
g.drawString(String.format("%02d", yourNumber), x, y)
答案3
得分: 0
你可以使用Java的String.format()方法，像这样（推荐）
String.format("%02d", num)
或者你也可以写成这样：
String text = (num < 10 ? "0" : "") + num;
英文:
You could use Java's String.format() method, like this (recommended)
String.format("%02d", num)
Or if you could write something like this:
String text = (num < 10 ? "0" : "") + num;
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