Classes, fields, methods, constructors, and objects are the building blocks of object-based Java applications. This Java tutorial teaches you how to declare classes, describe attributes via fields ...

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 ...

Java's default constructor allows developers to create instances of classes when no other constructors are explicitly ... The null Unicode character of the char primitive type is not visible in the ...

Every Java wrapper class has a deprecated constructor that takes a String as an argument and converts that String to the corresponding type. At some point, all developers must decide whether to ...