OpenJDK Runtime Environment Temurin-21.0.7+6 (build 21.0.7+6-LTS) OpenJDK 64-Bit Server VM Temurin-21.0.7+6 (build 21.0.7+6-LTS, mixed mode, sharing) Error scanning ...

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 ...

In this article we discuss a recent deserialization vulnerability we found in Relution (CVE-2023-48178), a mobile device management product that is popular among multinational German corporations. CVE ...

There are several ways to find duplicates in a Java List, array or other collection class. The following list describes some of the most commonly used approaches: Use a method in the Java Streams API ...

A (possibly pedantic) lint for iterating over a HashSet/HashMap would be appreciated. Given these do not stable iteration orders across program instances, any usage of them in redundant systems may ...

A HashSet is an optimized collection of unordered, unique elements that provides fast lookups and high-performance set operations. The HashSet class was first introduced in .NET 3.5 and is part of the ...

You can use this collection if you are going to store data as not null keys with associate not null values, if you look internal structure of Hashtable then you will see, instance of Hashtable ...