Top Coding Interview Questions with Examples in Python and Java

Coding interviews test your ability to solve problems effectively and efficiently. This blog covers some of the most common coding interview questions, complete with solutions in both Python and Java to help you prepare for your next big opportunity.

1. Reverse a String Problem:
Write a function to reverse a string.

Example:
Input: “hello”
Output: “olleh”

def reverse_string(s):
    return s[::-1]

# Test
print(reverse_string("hello"))  # Output: "olleh"

public class ReverseString {
    public static String reverseString(String s) {
        return new StringBuilder(s).reverse().toString();
    }

    public static void main(String[] args) {
        System.out.println(reverseString("hello"));  // Output: "olleh"
    }
}

2. Check if a Number is Prime Problem:
Write a function to determine if a number is prime.

Example:
Input: 29
Output: True

def is_prime(n):
    if n <= 1:
        return False
    for i in range(2, int(n**0.5) + 1):
        if n % i == 0:
            return False…