Classes and objects in Java must be initialized before they are used. You’ve previously learned that class fields are initialized to default values when classes are loaded, and that objects are ...

Unlike the ever-present java.lang.Object class, but like fellow classes in the java.util package, the java.util.Objects class must be explicitly imported in Java classes that make use of it.

6: 446 42840 [Ljava. lang. Object; 7: 1636 39264 java. lang. String We now have a single array comprising 100 million elements of size 4 — which are references to the object type java.util ...

[The use of the term "class file" is a bit incorrect here, since technically the Java Virtual Machine doesn't care where this stream of binary bits came from, but we refer to the binary format of Java ...