Ready to dive into Java but don't know where to start? The Java learning path is designed for beginners, offering a structured roadmap to master Object-Oriented Programming (OOP) concepts and core Java syntax. The best way to learn is by doing. We've curated five quick, hands-on labs that cover fundamental programming techniques, from basic arithmetic and method calls to statistical calculations. Each lab takes just 5 minutes, making it the perfect way to build confidence and practical coding skills in an interactive environment.
Calculate Sum of Digits
Difficulty: Beginner | Time: 5 minutes
In this lab, you will create a program to find the sum of all the digits of a given number.
Practice on LabEx → | Tutorial →
Subtraction of Coordinates
Difficulty: Beginner | Time: 5 minutes
In this lab, you need to create a program that subtracts coordinates by obtaining input for the x and y values of two coordinates, creating objects of the Coordinate class with these values, subtracting the x and y coordinates of these objects, and printing the resulting differences.
Practice on LabEx → | Tutorial →
Calculating Standard Deviation in Java
Difficulty: Beginner | Time: 5 minutes
In this lab, you will create a program that calculates the standard deviation of a given array by finding the sum, mean, difference, square, variance, and square root using the provided calculateSD() method, and then obtain and print the result using the main() method.
Practice on LabEx → | Tutorial →
Calling a Method Twice
Difficulty: Beginner | Time: 5 minutes
In this lab, you will create a program that defines a method called printNumbers() which prints the numbers 5 and 100, and then calls this method twice from the main() method.
Practice on LabEx → | Tutorial →
Calculating Sum of Natural Numbers
Difficulty: Beginner | Time: 5 minutes
In this lab, you will create a program that takes an integer input n and finds the sum of all natural numbers from 1 to n.
Practice on LabEx → | Tutorial →
These five beginner labs offer a fast-paced, practical way to build a solid foundation in Java. By completing these hands-on exercises, you won't just memorize syntax; you'll develop the logical thinking and problem-solving skills necessary to tackle more complex projects. Start your journey today—each lab is a small investment of 5 minutes that yields significant returns in coding proficiency. Dive into the Java path and turn theory into practical skill!
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