Easy Interview Coding Practice in Java

Start your coding interview preparation with easy-level Java problems. This course will help you build a solid foundation by solving common problems like reversing a string, finding the maximum number in a list, and checking for prime numbers. These exercises will enhance your problem-solving skills and boost your confidence for the coding interviews.

Lessons and practices

Lesson 1: Fundamentals of String Manipulation in Java

Identifying Vowel Positions in a String

String Shift by One Character

Transforming Character Cases in a String

Replace Character in String Without Using Built-in Methods

Swapping Adjacent Characters in a String

Palindrome Checker Without Built-In Methods

Lesson 2: Basic Array Operations in Java Without Built-in Methods

Find the Minimum Element in an Array

Counting Even and Odd Integers in an Array

Count the Number of Times the Smallest Element Appears in an Array

Find the Second Largest Number in an Array

Lesson 3: Standard Math Algorithms in Java

Determining if a Number is a Perfect Square in Java

Finding the Next Prime Number

Unique Prime Factors in Java

Coprime Number Checker in Java

Find the nth Prime Number in Java

Lesson 4: Manual List Operations in Java

Finding the First Occurrence of a Specific Value in an Array

Count Unique Elements in an Array

Reverse a List of Integers Without Using Built-in Methods

Circular Shift of List Elements Without Built-in Methods

Checking for Contiguous Subarray

Lesson 5: Simple Recursion in Practice

Sum Calculation using Recursion

Recursive List from N to 1

Sum of Digits Raised to Their Positions Using Recursion

Reverse a String Using Recursion in Java

Finding Fibonacci Using Optimized Recursion

Interested in this course? Learn and practice with Cosmo!

Practice is how you turn knowledge into actual skills.