Java Senior Interview Questions

6,029 java senior interview questions shared by candidates

Write a JavaScript / HTML program that lets the user open a CSV file from disk, displays it in a text box, processes it, and displays the output in another text box. ... Write a Java-based program (command line) that reads text from a file, splits it into words at spaces and newline characters and constructs an (unbalanced) binary tree where each leaf node represents a unique word. ...
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Senior Java Developer

Interviewed at NavVis

4.3
Apr 23, 2019

Write a JavaScript / HTML program that lets the user open a CSV file from disk, displays it in a text box, processes it, and displays the output in another text box. ... Write a Java-based program (command line) that reads text from a file, splits it into words at spaces and newline characters and constructs an (unbalanced) binary tree where each leaf node represents a unique word. ...

1. i Have an arary with Lakhs of values in it with Ascending order. I want to get the index of a particular nukber How to retrieve the index as fast as much 2 Explain Intermediate Operations 3. Ex[lain Terminal Operations 4. Explain functional interface 5. I have an employee object with emp id and Location. How to retrive the Emp id based on the location?
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Senior Java Developer

Interviewed at FedEx

3.5
Oct 8, 2025

1. i Have an arary with Lakhs of values in it with Ascending order. I want to get the index of a particular nukber How to retrieve the index as fast as much 2 Explain Intermediate Operations 3. Ex[lain Terminal Operations 4. Explain functional interface 5. I have an employee object with emp id and Location. How to retrive the Emp id based on the location?

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