Primitive types for storing simple values like numbers, strings and booleans. Reference types for storing complex objects. We'll get to these later in the course. As well as the above primitive types, ...

Data Types in Java Every variable in java has a data type. Data types specify the size and type of values that can be stored in an identifier. Java language is rich in its data types. The variety of ...

It means that on newer JDKs, a wrapper class will be created automatically when a primitive type is used anywhere a reference type is expected. As such, on post JDK 1.5 versions of the JVM, the ...

This chapter presents the basic structure of Java classes, variables, and data types, along with the aspects of each that you need to know for the exam. Java applications contain two types of data: ...

However, the compiler can optimize the expense away, if there is no use of type compatibility between array types. Remember that in Java, for a reference variable of some type referring an object ...

Primitive types are a weakness of Java for several reasons: they violate the principle of orthogonality in language design; they owe their ... there are only objects. Objects are either composite—they ...

Java's default constructor allows developers to create instances of classes when no other constructors are explicitly defined. The default constructor in Java takes no arguments -- it simply ...