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03: Tree traversal algorithms in Java

Q1. What are the different binary tree traversal mechanisms? A1. Traversing a tree means visiting all the nodes of a tree in order. … Read more ›...

Java coding practice problems – prime and powerful

There is no other way to pass the Java coding tests other than practicing. I have failed Java coding tests due to lack of practice. How often do you get work with tree and graph data structures?

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Searching algorithms in Java

This assumes that you understand “Swapping, partitioning, and sorting algorithms in Java“. Q1. Can you write a code to search for number 5 in 7 3 6 8 2 9...

Splitting input text & string processing coding Q&A

Q1. Can you write code to extract numbers from a given input text and return the sum of those numbers? Example: “1 some text 2 more text 4 more text...

Swapping, partitioning, and sorting algorithms in Java

Q1. Can you write an algorithm in Java to swap two variables? A1. Q2. Can you write an algorithm to bubble sort the following array { 30, … Read more...

800+ Java Interview Q&As