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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. Many different binary tree algorithms involve traversals….

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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? Ho often do you work with algorithms?

50+ Java coding practice problems Links:

Can you write code in Java?…

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…

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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…

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Swapping, partitioning, and sorting algorithms in Java

Q1. Can you write an algorithm in Java to swap two variables? A1.

public class Swap {
    
    public static void main(String[ ] args) {
        int x = 5;
        int y = 6;
        
        //store 'x' in a temp variable
        int temp = x;
        x = y;
        y = temp;
        
        System.out.println("x=" + x + ",y=" + y);
   }
}

public class Swap {

public static void main(String[ ] args) {

int x = 5;

int y = 6;

//store 'x' in a temp variable

int temp = x;

x = y;

y = temp;

System.

…

Blog Archives

03: Tree traversal algorithms in Java

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Java coding practice problems – prime and powerful

50+ Java coding practice problems Links:

Searching algorithms in Java

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Splitting input text & string processing coding Q&A

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Swapping, partitioning, and sorting algorithms in Java

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