Java Coding Problems

Java Coding Problems – Programs & Logic Building

Practice Java coding problems with clear explanations and solutions.

String-Based Java Problems

First Non-Repeated Character in Java

Check Anagram Strings in Java

Longest Palindromic Substring

Reverse String in Java

Check String Contains Only Digits

Count Character Occurrences

Palindrome String Program

Array-Based Java Problems

Remove Duplicates from Array

Find Duplicates in Array

Second Largest Element in Array

Check if Array Is Sorted

Reverse an Array

Sort Array Without Built-in Methods

Number & Pattern Problems

Prime Number Program

Fibonacci Series Program

Factorial Program

Palindrome Number Program

Armstrong Number Program

Check Leap Year

Pascal’s Triangle

Pyramid Star Pattern

Diamond Star Pattern

Right-Angled Triangle Pattern

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