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This article is about how to use String.format in JDK1.5. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

The following is a Chinese version of the description:

Http://gceclub.sun.com.cn/Java_Docs/html/zh_CN/api/java/util/Formatter.html#syntax

In the text

% [argument_index$] [flags] [width] conversion

It doesn't look easy to understand. Let me give you an example. If you don't, don't ask me, heh heh.

I'm going to format an integer 1 into 00001

Look at my example: String.format ("% 1 $05d", serialNum)

1$ refers to serialNum

0 means to modify the character set of the output format, that is, to fill the front of 1 with 0.

5 indicates that the output width is 5 characters

D means output as an integer

For other detailed parameters, please see the Chinese link I provided.

It can be seen that when writing the api manual, it is very important to write an example to illustrate it.

Thank you for reading! This is the end of the article on "how to use String.format in JDK1.5". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it for more people to see!

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