Bugl — code interview practice that feels like a game

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Flash cards

Review the key moves

1/4

Core idea

What is the main idea behind Java Tutorial?

Lesson checks

Practice each idea before moving on

Short Mimo-style checks built from this lesson's code, terms, and sequence.

1Quick choice

Which statement best captures the main point of this lesson?

2Fill blank

Complete the missing token from the example code.

public ___ Main {

3Order

Put the learning moves in the order that makes the concept easiest to apply.

- Java syntax and basic structure - Variables, data types, and operators - Conditions and loops - Methods and parameters - Arrays and strings - Object-oriented programming - Classes, objects, inheritance, and polymorphism - Exception handling - File handling - Collections and useful built-in classes

Java is free to use, and runs on all platforms.

Java is one of the world's most widely used programming languages.

Learn Java

Java is one of the world's most widely used programming languages.

Java is free to use, and runs on all platforms.

Example

public class Main {
  public static void main(String[] args) {
    System.out.println("Hello World");
  }
}

What You'll Learn

This tutorial will guide you step by step, with examples and exercises along the way:

Java syntax and basic structure
Variables, data types, and operators
Conditions and loops
Methods and parameters
Arrays and strings
Object-oriented programming
Classes, objects, inheritance, and polymorphism
Exception handling
File handling
Collections and useful built-in classes