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Award-Winning Java Tutors

Certified Tutor
2+ years
I'm Lorenzo! I'm a rising senior at the University of Pennsylvania studying engineering and education. Teaching has been a lifelong passion and in school I am a part of multiple tutoring organizations in the Philadelphia area. I am passionate about math and science (especially computer science), as ...
University of Pennsylvania
BOE

Certified Tutor
2+ years
I have a PhD in computational physics from the University Of Pennsylvania, as well as a degree in physics and computer science from the University Of British Columbia. I have years of experience as a teaching assistant and have been an instructor at a college level. I've taught hundreds of students ...
University of Pennsylvania
MS
University of British Columbia
MS

Certified Tutor
2+ years
Studying Computer Science at Rice, Alex writes Java regularly for coursework and projects, so he's deeply familiar with the sticking points: object-oriented design, inheritance hierarchies, and debugging cryptic NullPointerExceptions. He walks through each concept by building small, working programs...
Rice University
BS

Certified Tutor
2+ years
Object-oriented programming in Java trips students up when abstract concepts like inheritance, polymorphism, and interface design collide with unfamiliar syntax all at once. Alliyah untangles these layers separately, building intuition for how classes interact before layering on implementation detai...
Harvard University
BS

Certified Tutor
2+ years
I am a professional web developer with 15+ years experience with back-end development (Java, PHP, C#, .Net, REST API), database design/development (SQL, MYSQL, SQL Server) as well as front end development (CSS, HTML, XML, JavaScript, JQuery). I double majored in English and Computer Science and ha...
Cornell University
AM
University of Pennsylvania
AM
Certified Tutor
2+ years
I've helped several hundred students in a wide variety of subjects, from executive functioning to computer science to standardized testing. I also help students with general support in math and English. Most of my students are around 9-17, but I work well with students who are older and a little you...
University
Bachelor's

Certified Tutor
2+ years
My name is Michael. I have done a lot of teaching at Boston University for Computer Science and Programming Languages. I like teaching and tutoring a lot since I enjoy seeing students finally get the knowledge they need to solve their problems. My teaching style is to lead students into the right di...
University of Phoenix-Boston Campus
DSC
National Taiwan University
DSC

Certified Tutor
2+ years
I'm patient, personable, and have an incredible gift for explaining things in a way that makes sense. I majored in Math Education (with a minor in Computer Science), and I have more than eight years of experience teaching math and other STEM subjects.
Brigham Young University-Provo
BS

Certified Tutor
2+ years
I am a Junior at Rutgers University studying computer science. During my sophomore and junior years of high school, I authored the first Java programming class in the public library. I taught children aged 9 through 13 the basics of computer programming and writing applications in Java. In addition ...
Rutgers University-Camden
Bachelor

Certified Tutor
2+ years
Mithily
I am a dedicated teacher committed to facilitating students in achieving their goals and in helping them stretch beyond what they think they can achieve.
University
Bachelor's
Top 20 Technology and Coding Subjects
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Juan Manuel
AP Calculus BC Tutor • +43 Subjects
I believe anyone can do well in school. I believe timelines aren't for everyone, but I believe that progress should be judged as a function of effort, a function whose derivative is always positive :)
Samuel
Pre-Calculus Tutor • +15 Subjects
I am a recent graduate of UMBC with a double major in Math and Computer Science and I have a desire to put my passion for these subjects to the use of helping others. I have formally been a tutor for numerous peers throughout my years in high school and college, worked as a teacher at a coding summer camp, and have also been the go to resource for all my friends and family for math help since a very young age. Making learning fun and engaging is my main focus as a tutor and it also happens to be something I'm good at! I always enjoy the challenge of finding the best ways to help people understand mathematical and technical concepts. I'm also skilled with technology like Desmos and Wolfram Alpha which I can use to greatly enhance the learning experience.
Richard
Pre-Algebra Tutor • +27 Subjects
I am a graduate of the University of Toronto, Reichman University, and Western Governors University. I have been teaching children, youth, and adults in various academic settings since 2008. My teaching philosophy and tutoring style is that of open discourse and conversation, actively involving students in their own learning journey by connecting lesson material to their own interests and hobbies. I specialize in homework assistance and exam preparation.
Travers
Pre-Calculus Tutor • +8 Subjects
I've worked as a tutor on/off for the past 15 years. I started my tutoring my mother's students while in elementary school and later worked as teacher's assistant in college and a tutor for an after- school program in Poughkeepsie. On the side, I've worked as a private tutor for undergraduate and graduate students since graduating from college. I love to teach and I hope to eventually become a professor! In my professional life I have worked as a Data Scientist and Data Analyst for the past six years. I use R, SQL, Python, Tableau, JavaScript visualizations, and Looker to build data pipelines and provide quantitative insights.
Prashanti
Finite Mathematics Tutor • +19 Subjects
Graduate from the University of Windsor, majored in Computer Science; Gold Medalist in Undergrad; Gained subject expertise through research and published papers in Machine Learning; Strongly believe that having fun while teaching is the greatest way to learn anything.
Robert
Pre-Calculus Tutor • +20 Subjects
Hi, my name is Bob Gannon. I am a retired Electrical Engineer with over 35 years of experience teaching other engineers and helping them understand difficult subjects. I have a bachelor's degree in Electrical Engineering from the University of Maryland and a Master's degree from Johns Hopkins University. I am passionate about learning and I am continuously working to improve my skills. While working with you, if there is a topic that I am not very familiar with, I will research it and come up with the best way to present it to you. I look forward to working with you to help you understand your subject matter and enjoy learning. When we work together, we are a team, and I will do whatever I can to help you excel in whatever subject we apply ourselves to.
Alison
Middle School Math Tutor • +6 Subjects
As experienced and passionated educator with a Bachelor's degree in Computer Science from Rice University, I am passionate about empowering students to achieve their academic goals. With over 3 years of tutoring experience in subjects such as AP Computer Science A, Machine Learning, and SAT Math, I adapt to different learning styles and create a supportive learning environment. My teaching philosophy centers on personalized instruction, where I connect with each student to understand their unique learning styles and challenges. I take pride in guiding students through the complexities of computer science and college application essays, equipping them with the skills they need for future success. Outside of tutoring, I enjoy exploring new technologies and engaging in coding projects to improve my teaching approach.
Chris
Applied Mathematics Tutor • +48 Subjects
I am a Masters student in Physics at the University of Washington and have over 10 years of teaching and tutoring experience. Most recently, I worked as a teacher at the Yellow Wood Academy, a private high school that offers students a specialized one-on-one classroom environment. At YWA, I taught all high school science classes (including AP, Computer Programming, and Environmental Science) and all levels of high school math. In addition to my teaching and tutoring duties, I designed individualized lesson plans, curricula, homework assignments, and tests. Subjects I have successfully tutored Physics: all levels Chemistry: all levels high school, plus P-Chem, O-Chem Biology: all levels high school Math: all levels high school, plus Differential Equations, Statistics, some Group Theory. Standardized test preparation (incl. SAT, ACT, GRE, MCAT) Need help in another area? Just ask! While math and science are the subjects I am most passionate about, I am well-versed in many academic areas, and I may be able to help you.
Clifford
AP Statistics Tutor • +30 Subjects
I'm a graduate student in Applied Statistics with experience in general math and computer programming to boot. I currently have a PhD in Applied Statistics with experience in data analytics. I've had the opportunity to do some math and statistics work for hospitals and research facilities, and I enjoy getting to share my passion for math with others to assist them in their education.
Mark
AP Statistics Tutor • +27 Subjects
I am a graduate from Rochester Institute of Technology with a master's in Game Design and Development. My passions lie in everything related to games and mathematics. In the past, I have tutored various subjects in mathematics throughout high school and college, including but not limited to Algebra, Algebra II, Trigonometry, Calculus, Discrete Mathematics, Mathematics of Graphical Simulation, and Linear Algebra. As for technology, I am more than happy to reach out for help in Web Development (HTML, CSS, Javascript) or C# programming. I believe that every person can learn any topic. While every individual has different tastes, strengths, and weaknesses, there is no such thing as an "incapability" to know a subject. Education often possesses a guise of anti-fun, but I can promise you that all topics can be engaging, and I am willing to show you how engaging mathematics and technology can be. As a Game Designer, I have a deep interest in both playing games and making games. This includes games of all kinds: video games, board games, tabletop role-playing games, trading card games, miniatures, and even some sports like tennis or ping pong. Games act as a fantastic teaching tool. They teach by design without users recognizing. It is always a satisfying moment when somebody says "I learned that word from Magic" or "D&D taught me that." Remember: you can succeed. If something is important to you, then it's always worthwhile.
Top 20 Subjects
Frequently Asked Questions
Students often find object-oriented programming principles—particularly inheritance, polymorphism, and encapsulation—challenging to grasp beyond memorizing definitions. Exception handling and understanding stack traces is another major pain point; many students panic when they see a NullPointerException or ClassNotFoundException without knowing how to read the error message. Additionally, working with collections (ArrayLists, HashMaps, etc.) and understanding when to use each data structure trips up many learners, as does the difference between pass-by-value and pass-by-reference behavior in Java.
A tutor can teach you systematic debugging techniques like using print statements strategically, leveraging the Java debugger to set breakpoints and step through code, and most importantly, how to read and interpret error messages rather than just seeing them as obstacles. They'll show you how to isolate problems by testing small code segments in isolation, use the call stack to trace where errors originate, and develop the habit of thinking through your logic before running code. This approach transforms debugging from frustrating guesswork into a methodical problem-solving skill.
Syntax is the rules of how to write Java code—knowing that you use curly braces, semicolons, and proper method declarations. Algorithmic thinking is understanding the logic of *what* your code should do and *how* to solve a problem step-by-step, which is language-independent. Many students can write syntactically correct Java but struggle to design an algorithm to solve a problem. A tutor helps you develop algorithmic thinking by working through problems like sorting, searching, and data manipulation before you even write code, then translating that logic into Java syntax.
Rather than memorizing the differences between ArrayList, LinkedList, HashMap, and HashSet, it's more effective to understand the underlying concepts: when you need fast access by index (ArrayList), when you need efficient insertion/deletion (LinkedList), or when you need key-value pairs (HashMap). A tutor can guide you through building simple projects that naturally require different data structures, so you learn *why* you'd choose each one through hands-on experience. This contextual learning sticks much better than abstract comparisons.
OOP is best learned by designing and building actual objects, not by reading definitions of inheritance or polymorphism. A tutor can guide you through creating class hierarchies (like Animal → Dog → GoldenRetriever) and seeing how polymorphism lets you write flexible code, or designing interfaces to solve real problems. Working through code reviews where a tutor explains why a particular OOP design is better than another helps cement these concepts. The key is moving from "I can define encapsulation" to "I can design classes that are maintainable and extensible."
Building real projects—whether a simple to-do list application, a game, or a data analysis tool—forces you to integrate multiple concepts (classes, loops, collections, file I/O, exception handling) in ways that isolated exercises don't. Projects also expose you to practical challenges like managing state, handling edge cases, and writing readable code. A tutor can help you scope projects appropriately for your level, guide you through design decisions, and provide code review feedback that teaches you why certain approaches are better than others.
Absolutely. If you're interested in web development, you'd focus on frameworks like Spring and databases; for data science, you'd emphasize working with libraries and handling large datasets; for game development, you'd explore game engines and graphics libraries. While core Java fundamentals (OOP, collections, exception handling) apply everywhere, a tutor familiar with your specific goals can prioritize which advanced topics matter most and show you real examples in your area of interest. This keeps learning focused and motivating rather than abstract.
Beyond knowing Java syntax and libraries, an effective Java tutor should be able to explain *why* code works the way it does, not just show you examples. They should have real-world coding experience so they understand practical challenges, be comfortable reviewing your code and explaining design trade-offs, and most importantly, be able to meet you at your level—whether you're struggling with loops or designing complex class hierarchies. They should also help you develop debugging intuition and problem-solving approaches that transfer to new situations, rather than just solving problems for you.
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