大约有 9,000 项符合查询结果（耗时：0.0241秒） [XML]
java.net.ConnectException: Connection refused
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Just to make the point clear - "Java core is just fine". Only problem is we overlook issues.. (server state, ipaddress, port, internet connectivity - being on the same router is must for local IP's and more)
– Vinay Bhargav
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How to get the process ID to kill a nohup process?
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Suppose you are executing a java program with nohup you can get java process id by
`ps aux | grep java`
output
xxxxx 9643 0.0 0.0 14232 968 pts/2
then you can kill the process by typing
sudo kill 9643
or lets say that you need to ...
What GUI libraries are the JetBrains using?
I am somewhat new to Java and am enjoying using IntelliJ IDE developed by the JetBrains team.
1 Answer
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Does Python optimize tail recursion?
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@jwg So... What? You have to write a language before you can comment on poor design decisions? Hardly seems logical or practical. I assume from your comment that you have no opinion about any features (or lack thereof) in any language ever written?
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How to change the value of ${user} variable used in Eclipse templates
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It seems that your best bet is to redefine the java user.name variable either at your command line, or using the eclipse.ini file in your eclipse install root directory.
This seems to work fine for me:
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256M
-vmargs...
Retrieving a random item from ArrayList [duplicate]
I'm learning Java and I'm having a problem with ArrayList and Random .
12 Answers
1...
Why Collections.sort uses merge sort instead of quicksort?
... hand,
requires O(n) external space. The TimSort variant (introduced in Java
SE 6) requires substantially less space (O(k)) if the input array is
nearly sorted.
Also, the following is relevant:
The algorithm used by java.util.Arrays.sort and (indirectly) by
java.util.Collections.sort...
How to properly stop the Thread in Java?
I need a solution to properly stop the thread in Java.
9 Answers
9
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Is the ternary operator faster than an “if” condition in Java [duplicate]
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Also, the ternary operator enables a form of "optional" parameter. Java does not allow optional parameters in method signatures but the ternary operator enables you to easily inline a default choice when null is supplied for a parameter value.
For example:
public void myMethod(int par1, St...
Reload the path in PowerShell
... "PATH=%PATH%;%ALLUSERSPROFILE%\chocolatey\bin"
Example usage:
> SET JAVA_HOME=c:/java/jdk6
> SET PATH=%JAVA_HOME%/bin
> ECHO %PATH%
c:/java/jdk6/bin
> SET JAVA_HOME=c:/java/jdk8
> refreshenv
Refreshing environment variables from registry for cmd.exe. Please wait...Finished..
>...