Abstract: The design and implementation of a novel visual interactive execution environment for Java is described. This system displays both the run-time object structure as well as the internal ...

A frequently asked question in a Java interview is: How to implement a Java HashMap? Java job seekers must fully grok this important concept if they want to ace the interview. The HashMap tutorial ...

Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. Cory Benfield discusses the evolution of ...

A monthly overview of things you need to know as an architect or aspiring architect. Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with ...

java.util.concurrent.ExecutionException: org.eclipse.lsp4j.jsonrpc.ResponseErrorException: Request chat/restore failed with message: No default chat model found at ...

Your browser does not support the audio element. Java’s Collection framework is one of the foundational components of the Java platform. Collections in Java ...

Abstract: Writing high quality concurrent programs is challenging. A concurrent program that is not well-written may suffer from coarse synchronization problems, e.g., overly-large critical sections, ...

We configured max thread pool size to be 150 in glassfish 3.1.2.2. We noticed most thread were blocked after a while, and there was an exception like this: ...

hashtable就是哈希表 用的是一个哈希函数计算出来的整数（称为哈希值） 把哈希值作为下标的数组 如果不同的元素有相同的哈希值，就用链表连起来（俗称拉链结构） 但是这4个大概有什么不同么 ...