大约有 8,100 项符合查询结果（耗时：0.0131秒） [XML]
How to print a float with 2 decimal places in Java?
Can I do it with System.out.print ?
16 Answers
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Can I grep only the first n lines of a file?
I have very long log files, is it possible to ask grep to only search the first 10 lines?
12 Answers
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Is There a Better Way of Checking Nil or Length == 0 of a String in Ruby?
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When I'm not worried about performance, I'll often use this:
if my_string.to_s == ''
# It's nil or empty
end
There are various variations, of course...
if my_string.to_s.strip.length == 0
# It's nil, empty, or just whitespace
end
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How to select only date from a DATETIME field in MySQL?
I have a table in the MySQL database that is set up with DATETIME . I need to SELECT in this table only by DATE and excluding the time.
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Convert boolean to int in Java
What is the most accepted way to convert a boolean to an int in Java?
12 Answers
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Display current time in 12 hour format with AM/PM
Currently the time displayed as 13:35 PM
However I want to display as 12 hour format with AM/PM, i.e 1:35 PM instead of 13:35 PM
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Remove all spaces from a string in SQL Server
What is the best way to remove all spaces from a string in SQL Server 2008?
23 Answers
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Change the font of a UIBarButtonItem
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edited Jun 18 '15 at 23:37
Raul Huerta
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Is there any free OCR library for Android? [closed]
I'm looking for a Java OCR that runs on Android, however Asprise doesn't seem to be a platform independent OCR. is there any opensource/free Java OCR I can use for android application development?
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What does the ng stand for in Angular.js directives
Angular.js uses several directives prefixed with ng like below:
6 Answers
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