Java is an object-oriented programming language, but there’s more to Java than programming with objects. This tutorial is the first of several introducing non-object-oriented features and syntax ...

A variable is a container which holds the value while the java program is executed. A variable is assigned with a datatype. Variable is a name of memory location. There are three types of variables in ...

To illustrate how generics are used in the Java Collections Framework, let’s look at some examples. List and ArrayList with generics. In the above example, we already briefly explored a simpler ...

Computers operate a little bit like people. They do things. But, in order to do useful things, they also need to remember things. Variables are computers ways to remember things. Imagine a big storing ...

Three basic types of variable that we are going to introduce in this Java tutorial are: Integers – Whole numbers. Floats – Or “floating point variables.” ...

Java Supplier interface tutorial. As you can see, the code for the class that implements Java’s Supplier interface is fairly simple. The only requirements are the class declaration and the ...

In the calling program, map the argument to a variable or a literal value. Once the argument is mapped it will behave exactly the same way a variable would. You can include the argument in ...