Struct in Java?

[Monica Shiralkar]

I was asked in an interview what are structs in Java.I had never heard so replied saying sorry I don't know. Later when I checked I did not find any struts in Java but it is there in C++. I am thinking that interviewer might have meant equivalent of structs in Java. Does Java have it or its equivalent ?
Thanks

[Campbell Ritchie]

Look in Joshua Bloch's Effective Java pages 75‑76 (first (2001) edition only).

[Monica Shiralkar]

Thanks. I will check further.May have been there in old version of Java and removed.

[Campbell Ritchie]

Monica Shiralkar wrote:. . . . May have been there in old version of Java and removed.

How many things have been removed from Java®? That section has been removed from the book in later editions.

[Tim Holloway]

The logical equivalent of a struct in Java is a Java Class. There is no physical equivalent.

In C, a struct defines not only a data association, but also memory mapping. That is, knowing the characteristics of a particular compiler for a particular machine and OS, I can compute to the byte how much memory a struct will occupy and where, within that struct, each of its data elements are. You cannot do that with a Java class.

C++, incidentally gets a little funny. Unless someone's tightened definitions, the only difference between a C++ struct and a C++ class is the initial scope of its member declaraions. A struct starts out with public scope,  a class starts out with private scope. But C++ classes (including structs) can define virtual resources, and if they do, the location and composition of those resources may make it harder to predict storage sizes and offsets.

[Ishan Shah]

Hello,

Java definitively has no structs But what you describe here looks like a JavaBean kind of class

[Ivan Jozsef Balazs]

You might want to look up records:
https://dzone.com/articles/a-first-look-at-records-in-java-14