Get a deep dive into using method references in your Java programs, including stream operations, event listeners, and constructors and factories.

Thanks for reporting. The actual cause is, we try to report a violation on the default constructor of that inner class, but this default constructor is not in the source (it is implicitly created).

Sealed classes in Java let developers limit the creation and use of subclasses and preserve the class hierarchy. Here is how sealed classes in Java work.

The Java language spec lists 10 Java constructor types, including default, no-args, canonical, private parameterized, generic, overloaded and anonymous.

Traditionally, Java constructors were required to place any explicit invocation of another constructor as the first statement.

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs.

What happened No default constructor found Exception occurs When a class has only one private constructor with parameters. I have checked the No default constructor found. #622 .There is still a bug ...

In part 3 of this series on the C++ Core Guidelines, we explore constructors and why, rather than writing a default constructor, you should use in-class member initializers, a feature added in C++ 11.