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How to synchronize a static variable among threads running different instances of a class in Java?
...se it's a read / modify / write sequence. As noted in a different answer, java.util.concurrent.atomic.AtomicInteger is likely the right choice here.
– fadden
Apr 17 '13 at 23:35
4...
Tool to read and display Java .class versions
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Use the javap tool that comes with the JDK. The -verbose option will print the version number of the class file.
> javap -verbose MyClass
Compiled from "MyClass.java"
public class MyClass
SourceFile: "MyClass.java"
minor vers...
What is difference between Collection.stream().forEach() and Collection.forEach()?
...on specified in Stream.forEach is required to be non-interfering. (See the java.util.stream package doc.) Iterable.forEach potentially has fewer restrictions. For the collections in java.util, Iterable.forEach will generally use that collection's Iterator, most of which are designed to be fail-fast ...
What's in an Eclipse .classpath/.project file?
...project? (remember, the concept of "build" doesn't pertain specifically to Java projects, but also to other types of projects)
The .classpath file is maintained by Eclipse's JDT feature (feature = set of plugins). JDT holds multiple such "meta" files in the project (see the .settings directory insi...
How can I initialize an ArrayList with all zeroes in Java?
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// apparently this is broken. Whoops for me!
java.util.Collections.fill(list,new Integer(0));
// this is better
Integer[] data = new Integer[60];
Arrays.fill(data,new Integer(0));
List<Integer> list = Arrays.asList(data);
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App Inventor 2 LLMAI2Ext 自研拓展：接入DeepSeek、Kimi、通义千问...等国...
...源码平台上编译出来的，可能有些较老的平台不能很好的运行，有条件的话还是建议使用我们的平台，也会优先获得反馈支持。
当然，好的产品是需要不断迭代的，这款拓展也不例外，欢迎使用并期待您的反馈！
拓...
What are Transient and Volatile Modifiers?
Can someone explain what the transient and volatile modifiers mean in Java?
4 Answers
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Sorting HashMap by values [duplicate]
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Assuming Java, you could sort hashmap just like this:
public LinkedHashMap<Integer, String> sortHashMapByValues(
HashMap<Integer, String> passedMap) {
List<Integer> mapKeys = new ArrayList<>(passed...
Is there “Break on Exception” in IntelliJ?
...e the stack is walked looking for catch/finally blocks to execute.
TIP: Java tends to throw a lot of exceptions internally when loading classes, so this breaking on all exceptions can become quite tedious. The good news is that you can exclude certain types of exception using the condition field....
How to create your own library for Android development to be used in every program you write?
... Android Library, then click Next.
There's also an option to create a Java Library, which builds a traditional JAR file. While a JAR file is useful for many
projects—especially when you want to share code with other
platforms—it does not allow you to include Android resources or
manif...