Collections and arrays are a way of grouping similar data values into one variable name. We are going to talk mostly about collections in this section with only a small amount about arrays. What ...

Many data structures have been developed so programmers can store and retrieve values efficiently. The Java API provides implementations of common data structures and algorithms, as well as a ...

The most significant addition to the Java language since Sun Microsystems rewrote the collections API for Java 5 is the introduction of Java records. Java records address two significant pain points ...

The collections framework was designed to meet several goals. The framework had to be high-performance. The implementations for the fundamental collections (dynamic arrays, linked lists, trees, and ...

Certain principles hold for the use of iterators: In general, you should be able to have multiple traversals in progress at the same time; that is, an iterator should allow for the concept of nested ...

/** * Instantiate my collections with empty versions using Collections fields. * This will result in javac compiler warnings stating "warning: [unchecked] * unchecked ...