大约有 7,482 项符合查询结果（耗时：0.0164秒） [XML]
How to remove newlines from beginning and end of a string?
...g::trim method has a strange definition of whitespace.
As discussed here, Java 11 adds new strip… methods to the String class. These use a more Unicode-savvy definition of whitespace. See the rules of this definition in the class JavaDoc for Character::isWhitespace.
Example code.
String input =...
JPA getSingleResult() or null
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Try this in Java 8:
Optional first = query.getResultList().stream().findFirst();
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【软著】软件著作权证书申请流程及注意事项，模板分享 - App Inventor 2 中...
...*60页
6、AppInventor2如何申请软著？
一般的软件比如使用Java开发，源码中准备的就是.java代码，但是appinventor没有具体的代码怎么办？不要紧，将.aia导出后，用压缩软件打开aia源码，在src目录下有几个真正的源码文件，记事本打...
Eclipse and Windows newlines
...inux just try this on a command line:
sed 's/$'"/`echo \\\r`/" yourfile.java > output.java
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Set margins in a LinearLayout programmatically
I'm trying to use Java ( not XML ) to create a LinearLayout with buttons that fill the screen, and have margins. Here is code that works without margins:
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Windows batch script launch program and exit console
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note: when you want to start a java jar file this way, make sure to use the javaw executable (not just java, because java will start another batch window): e.g. start "" "javaw" -jar C:\JavaProject\myApp.jar
– TmTron
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Android canvas draw rectangle
...h stroke width 0 and the desired fill colour(s).
For example:
DrawView.java
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.view.View;
public class DrawView extends View {
Paint paint = new Paint()...
Git undo changes in some files [duplicate]
...it-scm.com/book/en/Git-Basics-Undoing-Things
git checkout -- modifiedfile.java
1)$ git status
you will see the modified file
2)$git checkout -- modifiedfile.java
3)$git status
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Generate a random double in a range
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This question was asked before Java 7 release but now, there is another possible way using Java 7 (and above) API:
double random = ThreadLocalRandom.current().nextDouble(min, max);
nextDouble will return a pseudorandom double value between the minimum (...
How to parameterize @Scheduled(fixedDelay) with Spring 3.0 expression language?
...sk:scheduled ref="someObject" method="readLog"
fixed-rate="#{T(java.lang.Long).valueOf(YourConfigurationBean.stringValue)}"/>
</task:scheduled-tasks>
Again, I haven't tried any of these setups, but I hope it might help you a bit.
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