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Free, in-depth courses for every kind of role, and the interview questions that actually get asked, with answers that explain the why. Sign up to track your progress and get courses picked for your resume and applications.

7 results for “oop” · Clear

Top interview questions

The ten questions you are most likely to face for each role, answered the way interviewers want to hear it.

Interview questionsBeginner

Top 10 JavaScript interview questions

10 min · 10 questions

Interview questionsIntermediate

Top 10 Node.js and backend interview questions

10 min · 10 questions

Interview questionsBeginner

Top 10 Java and OOP interview questions

10 min · 10 questions

Interview questionsBeginner

Top 10 Python interview questions

10 min · 10 questions

Interview questionsBeginner

Top 10 business analyst interview questions

10 min · 10 questions

Web Development

CourseBeginner

JavaScript core concepts for interviews

The JavaScript every frontend and full-stack interview checks: types and coercion, scope and closures, this, prototypes, the event loop, promises and async/await, and modern ES6+ syntax, with the output-prediction puzzles interviewers love.

10 min · 5 lessons

Software Engineering

CourseBeginner

Java and object-oriented programming for interviews

The four pillars of OOP with real examples, core Java (strings, equals and hashCode, exceptions), the collections framework, multithreading basics, JVM memory and an intro to Spring Boot, everything service companies and product companies ask freshers.

9 min · 4 lessons