For this example, we’ll look at the HashMap class, which is part of the Java Collections Framework in the java.util package. HashMap, which describes a hash table-based implementation of a map ...

Version 24 version introduces several new language features which collectively simplify code, and provide powerful tools for bytecode manipulation and advanced stream processing.

For example, in Java 8, the bootstrap class loader was located in the Java Runtime Environment’s rt.jar file. In Java 9 and subsequently, the rt.jar file was removed.

The most important rule of Java syntax: lines end with a semicolon. This punctuation tells Java (and you) that the line of code is over and isn’t intended to run on to the next line. Kind of ...

The Java serialization tutorial In this Java serialization example, we will use both the ObjectOutputStream and the ObjectInputStream to save and retrieve the state of a simple JavaBean. The POJO will ...

For more on that, check out our guide to Android development for beginners. For the purposes of this Java tutorial, it may be easier to write your code directly into a Java compiler app.

Java employs its own binary serialization stream protocol. Serialization is achieved through a combination of the ObjectOutputStream and ObjectInputStream classes, and the implementation of marker ...