Programming languages are crucial for aspiring software developers, especially when it comes to job interviews. They play a significant role in the technological world. To land a job, recent graduates looking to launch a career in technology must have a solid grasp of programming languages. Programming languages are one of the most frequently tested subjects during tech interviews. Therefore, in order for freshmen to succeed in an interview, they must be well-versed in at least one programming language. One of the most widely used programming languages, Java is a great place to start, especially for new programmers. It is a powerful object-oriented language that can run on a variety of platforms, making the tech sector highly competitive. Java is used in a wide variety of applications, including the creation of desktop applications, games, and web and mobile applications. Its popularity is a result of its ease of use, adaptability, and ability to be written once and executed anywhere. Candidates may be asked to solve coding problems in a tech interview, and Java’s syntax and structure make it the ideal language for this task. Java is a great option for beginners because it’s also simple to learn. There are numerous online resources, such as tutorials, blogs, and YouTube videos, that can assist new Java developers in getting started. Learning Java can open up exciting career opportunities in addition to helping you in tech interviews.
Since there is a large community of Java developers all over the world, it is simple for beginners to find support and advice when learning the language. Participating in meetups or joining online communities can give one access to seasoned developers who can offer guidance, counsel, and pointers on how to advance their careers.
So today in this article we will dive deep and frame a pathway for you, using which you will be able to conquer Java for your upcoming Java test. This pathway will take almost 120 days to complete with all your focus and dedication. So, plan for your upcoming college placement drive accordingly and conquer the best placement opportunities for your career. Without any further delay let us get started with this article.
Step 1: Learn the fundamentals of programming
Considering you are a complete beginner, learning the fundamentals of programming becomes crucial to you. To begin with, you need to learn what tokens, keywords, literals, variables, and data types. Now start learning about how expressions work in a program, create small programs, and learn how to take input from the user, process the input for various situations and print the output on the console window. Finally learn about loops, conditional statements, and functions/methods in Java. If done with the appropriate amount of practice, this step shall take 30 days to complete.
Step 2: Solve problems on Arrays and Strings
After having a firm grip on the fundamentals of programming in Java, it’s time to choose a coding platform like Geeks For Geeks, Code Chef, LeetCode, etc., and start solving questions on Arrays and Strings. This step focuses on building your programming logic. Ideally, you should be able to solve 10-15 easy-level questions every day for the next 20 days.
What you will be left with at the end of this step is a strong logic to solve problems in tech interviews and 70 days.
Step 3: Learn Object Oriented Programming in Java
Keep solving questions, and step up to medium-level problems on Arrays and Strings. And additionally, start learning Object Oriented Programming in Java by watching YouTube videos. It is best recommended to learn this topic by finding and solving multiple real-life problems through different concepts of Object Oriented Programming. This step shall take 25 days to complete if you practice a good amount of questions along with learning its fundamentals and implementations.
Step 4: Learn Data Structures and related Algorithms
Now you should be having 45 days left with you, so ramp up your skills by learning Data Structures and basic Algorithms related to these data structures. Learn the Searching and Sorting algorithms, and Time Complexity and Space Complexity associated with them. About Data Structures, you can start by learning about linear Data Structures like Linked Lists, Queues, and Stacks, and then move to non-linear Data Structures like Trees, Graphs, Tries, and Heaps. Finally, learn about Advanced Data Structures like Priority Queues and Hash-based structures.
This step shall consume approximately 30 days along with solving a few basic questions based on every Data Structure. Implement all the Data Structures on your own, and practice at least 15-20 questions based on each Data Structure.
Step 5: Learn Collections Framework
Now, it’s time for you to learn a powerful tool called Collections Framework in Java which basically allows using data structures without worrying about their implementations. Learn it in the next 3 days, and then start solving questions using various interfaces and classes from Collections Framework. Keep revising everything, especially the concepts of Data Structures and Algorithms as they are the most important pillars of any programming test.
Step 6: Learn about Exception Handling and Multithreading
These are some of the other topics very important from the perspective of tech interviews. Learn these concepts in the remaining 5-7 days and boom! You are all set to conquer your next tech interview.
At the end of these 6 Steps, you should have covered almost everything related to programming tests. It is important to take note here, that as much as you solve questions, you would eventually get better at problem-solving in Java. So don’t ever give up on solving questions, be persistent and keep revising the learned concepts.
Mercer | Mettl is an amazing platform where you can go after following all the steps and practice questions that were previously asked by tech giants in their real-life interviews which they hosted on Mercer | Mettl. Mercer | Mettl is the industry leader in online assessment platforms and guarantees the best-in-class proctoring solutions for online hiring.