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What are the -Xms and -Xmx parameters when starting JVM?
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The flag Xmx specifies the maximum memory allocation pool for a Java virtual machine (JVM), while Xms specifies the initial memory allocation pool.
This means that your JVM will be started with Xms amount of memory and will be able to use a maximum of Xmx amount of memory. For example, s...
How can I play sound in Java?
...ed. Have a look: stackoverflow.com/questions/577724/trouble-playing-wav-in-java/…
– yanchenko
Feb 23 '09 at 15:40
3
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Java maximum memory on Windows XP
I've always been able to allocate 1400 megabytes for Java SE running on 32-bit Windows XP (Java 1.4, 1.5 and 1.6).
13 Answe...
Difference between mkdir() and mkdirs() in java for java.io.File [closed]
...kdirs() also creates parent directories in the path this File represents.
javadocs for mkdirs():
Creates the directory named by this abstract pathname, including any
necessary but nonexistent parent directories. Note that if this
operation fails it may have succeeded in creating some of the...
解决：Failed to load JavaHL Library（windows及mac） - 其他 - 清泛IT社区，为创新赋能！
Failed to load JavaHL Library.
These are the errors that were encountered:
no libsvnjavahl-1 in java.library.path
no svnjavahl-1 in java.library.path
no svnjavahl in java.library.path
java.library.path = /Users/apple/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensi...
京东天天果园与“褚橙”从合作演变成打假 - 资讯 - 清泛网 - 专注C/C++及内核技术
...果园公关总监宋文明在微信公众号上发文直言“遭到某里系统(指阿里)的抹黑”。他表示，“过去出售的‘褚橙’，以及未来可能出售的‘褚橙’，都是经正规渠道的正品。到打官司的时候，我们愿意出相应的文件。...
How do I analyze a .hprof file?
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You can use JHAT, The Java Heap Analysis Tool provided by default with the JDK. It's command line but starts a web server/browser you use to examine the memory. Not the most user friendly, but at least it's already installed most places you'll g...
How do I determine whether an array contains a particular value in Java?
...g: this doesn't work for arrays of primitives (see the comments).
Since java-8 you can now use Streams.
String[] values = {"AB","BC","CD","AE"};
boolean contains = Arrays.stream(values).anyMatch("s"::equals);
To check whether an array of int, double or long contains a value use IntStream, Doub...
What's a good Java, curses-like, library for terminal applications? [closed]
I would like to write a Java terminal application that does screen manipulation. Are there any good libraries out there that allow you to manipulate the screen like curses in the *nix/C world?
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How do I check that a Java String is not all whitespaces?
I want to check that Java String or character array is not just made up of whitespaces, using Java?
15 Answers
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