Java Tutorial

Learn Java interactively. Read the concept and write code to practice.

Java is a popular programming language, created in 1995. It is owned by Oracle, ...

Variables are containers for storing data values. In Java, there are different t...

Java data types are divided into two groups: 1. **Primitive data types** - incl...

Operators are used to perform operations on variables and values. Java divides ...

Strings are used for storing text. A String variable contains a collection of ch...

The Java Math class has many methods that allow you to perform mathematical task...

Very often, in programming, you will need a data type that can only have one of ...

Java has the following conditional statements: - `if` to specify a block of cod...

Use the `switch` statement to select one of many code blocks to be executed. ``...

Loops can execute a block of code as long as a specified condition is reached. ...

When you know exactly how many times you want to loop through a block of code, u...

Arrays are used to store multiple values in a single variable, instead of declar...

You can loop through the array elements with the `for` loop, and use the `length...

A method is a block of code which only runs when it is called. You can pass data...

Information can be passed to methods as parameter. Parameters act as variables i...

Java is an object-oriented programming language. Everything in Java is associate...

A constructor in Java is a special method that is used to initialize objects. Th...

The meaning of Encapsulation, is to make sure that "sensitive" data is hidden fr...

In Java, it is possible to inherit attributes and methods from one class to anot...

When executing Java code, different errors can occur: coding errors made by the ...