Become an intermediate level Java developer, ready to take on your own projects.

Become a Spring Boot Developer

Learn Java for free with this interactive module, and get a handle on one of the most popular programming languages in the world.

You'll start with a simple hello world program and proceed to cover common concepts such as conditional statements, loop statements, math, and logic in Java, before moving on to more advanced concepts like inheritance, generics, and ArrayLists, along with much more.

Core Java Concepts

The following access modifier prevents the member of a class to be accessed outside of the class.

The following access modifier prevents the member of a class to be accessed outside of the class.

It prints the age of the student and returns it

It sets the age of the student and returns it

What is the type of the following method and what does it do? Choose the best answer. 
```
public int age_student()
{
	System.out.println(this.age);
	return this.age;
}
```

What is the type of the following method and what does it do? Choose the best answer.
<pre><code>public int age_student()
{
	System.out.println(this.age);
	return this.age;
}
</code></pre>

What kind of constructor for class **Student** is shown? 
```
public Student(Student s){
	this.age=s.age;
  this.name=s.name;
}
```

What kind of constructor for class Student is shown?
<pre><code>public Student(Student s){
	this.age=s.age;
 this.name=s.name;
}
</code></pre>

There is no difference in a protected and public variable of a mother class in terms of accessibility and use for a derived class. 

Is this statement correct?

There is no difference in a protected and public variable of a mother class in terms of accessibility and use for a derived class.
Is this statement correct?

The keyword `super` is used to access members of a derived class in a mother class. 

Is this statement correct? 

The keyword <code>super</code> is used to access members of a derived class in a mother class.
Is this statement correct?

Which keyword signifies that a class is being derived from another class? 

Which keyword signifies that a class is being derived from another class?

Before We Begin

Getting Started with Java!

Variable and User Input

Simple Maths & Logic

Strings and String Processing

Conditional Statements

Loops

Methods

Arrays

Classes and Inheritance

Generics

ArrayLists

Java Exam

Conclusion

Quick Quiz!