Programmer Trainee Interview Questions

2,759 programmer trainee interview questions shared by candidates

Can you introduce yourself and give a brief background? Explain your project – what problem does it solve and what tech stack did you use? What is the purpose of the tag in HTML? What is polymorphism in Java? Give real-life and code examples. Differentiate between let, var, and const in JavaScript. What is the difference between method overloading and method overriding in Java? What are closures in JavaScript? What is the difference between == and === in JavaScript? What is the role of props and state in React (if React is used in your project)? What challenges did you face while working on your project, and how did you overcome them?
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Programmer Trainee

Interviewed at Cognizant

3.6
Apr 30, 2025

Can you introduce yourself and give a brief background? Explain your project – what problem does it solve and what tech stack did you use? What is the purpose of the tag in HTML? What is polymorphism in Java? Give real-life and code examples. Differentiate between let, var, and const in JavaScript. What is the difference between method overloading and method overriding in Java? What are closures in JavaScript? What is the difference between == and === in JavaScript? What is the role of props and state in React (if React is used in your project)? What challenges did you face while working on your project, and how did you overcome them?

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