Java is a cornerstone of modern software development, powering everything from enterprise backends to Android applications. If you are just starting your journey, the best way to move from theory to practice is through hands-on coding. Our curated Java learning path offers a structured roadmap to master object-oriented programming and core syntax. In this article, we highlight five essential, bite-sized labs designed to help you build confidence and sharpen your problem-solving skills in just minutes.
Calculate the Factorial of a Number
Difficulty: Beginner | Time: 5 minutes
In this lab, you need to create a program that calculates the factorial of a given number by multiplying all the numbers from 1 to the given number.
Practice on LabEx → | Tutorial →
Determine Factors of a Number
Difficulty: Beginner | Time: 5 minutes
In this lab, we will create a program that finds all the factors of a given number except the number itself.
Practice on LabEx → | Tutorial →
Determine Longer String From Inputs
Difficulty: Beginner | Time: 5 minutes
In this lab, the task is to create a program that takes two string inputs from the user, determines the length of each string, compares the lengths, and prints the longer string.
Practice on LabEx → | Tutorial →
Find Differences Between Two Hashsets
Difficulty: Beginner | Time: 5 minutes
In this lab, you need to create a program that finds the differences between two hashsets by removing the common elements using the removeAll() method and then printing the updated hashset.
Practice on LabEx → | Tutorial →
Print Even Numbers from Array
Difficulty: Beginner | Time: 5 minutes
In this lab, you will create a program that takes user input for an integer array of size 10, iterates through each element using a for loop, and prints out only the even numbers from the array.
Practice on LabEx → | Tutorial →
These five labs are more than just exercises; they are the building blocks of your Java proficiency. By tackling these problems in our interactive playground, you gain the muscle memory needed to write clean, efficient code. Ready to level up your programming skills? Dive into these labs today and start building your foundation in Java.
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