Gain insights into Java essentials, including programming paradigms, objects, data types, and algorithms. Delve into extensive exercises to prepare for a software development career.

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This course is your detailed guide to the fundamentals of the Java programming language. This course will get you on the fast track to becoming a proficient and modern Java developer.

In this course, you will start by covering different programming paradigms like object-oriented and procedural programming. You will then cover the fundamentals of programming in Java such as: objects and data types, variables, arrays, and conditional statements.

In the latter half of the course, you will cover iterative constructs, useful algorithms, and data structures. With over 100 problems, 11 quizzes, and 9 challenges, this course will get you prepared for a career in software development.

A Complete Guide to Java Programming

# Problem statement

- Declare a local `private int` type variable, name it **mySecretNumber**, assign it a value of `10`, and declare it outside the functions.

- Inside the `displaySecret` function, reassign the value of `45` to **mySecretNumber**.

- Create a reference variable of `RLVariables` and name it **secret**. Access the instance variable (**mySecretNumber**) using reference variable **secret** with the following line:
    
   - **Reference variable accessing instance variable:** (print the reference variable here)

- Now print the local variable on the new line:

   - **Local Variable:** (print the local variable here)

- Assign the local variable value to the instance variable of the reference variable and print the following on the new line:

   - **Reference variable accessing instance variable that points to the local variable:** (print the reference variable here)

 


Read the problem statement carefully and solve the challenge by defining the reference and local variables in the right place.

Java, a High Level Language with a Purpose

How Java Programming Works

Objects and Data Types

Variables: The Name of a Field

Arrays: The Container Objects

Operators and Conditional Statements

Iterative Constructs, Entry and Exit Controlled Loops

Algorithms

Basic Input and Output

Classes and Objects

Interface and Abstraction

Exception Handling and Data Structures

Conclusion

Appendix

Challenge: Reference and Local Variables

Problem statement