📘 Java Programs
📅 Check Leap Year
Learn how to determine whether a year is a leap year in Java using simple conditions.
🔁 Palindrome Number
Check if a number is a palindrome using Java by reversing digits and comparing with original.
🔢 Prime Number
Understand how to check whether a number is prime using basic Java logic and loops.
💪 Armstrong Number
Java program to determine if a number is an Armstrong number using power and digit sum.
🔄 Palindrome String
Check whether a given string is a palindrome by comparing with its reverse.
📈 Fibonacci Series
Generate Fibonacci series in Java using both loops and recursion with examples.
🔁 Reverse a String
Java methods to reverse strings using loop, StringBuilder, and recursion.
✖️ Factorial in Java
Calculate the factorial of a number using loops and recursion in Java.
✅ Check if Array is Sorted
Learn how to check if a Java array is sorted in ascending or descending order.
🔍 Find Duplicates in Array
Identify duplicate elements in a Java array using HashSet or nested loops.
🔄 Reverse Array
Reverse the elements of an array in Java using loop or Collections utility.
🥈 Second Largest in Array
Find the second largest number in a Java array with or without sorting.
📊 Sort Array Manually
Sort arrays in Java without using built-in methods like Arrays.sort().
🔺 Pascal’s Triangle
Print Pascal’s triangle in Java using nested loops for combinatorics logic.
🔢 Check String Only Digits
Simple Java logic to check if a string contains only numeric digits using regex and iteration.
🔍 First Non-Repeated Character
Efficient ways to find the first non-repeating character in a string with Java examples.
🧮 Check Anagram Strings
Java programs to check whether two strings are anagrams using sorting or frequency count.
🔄 Longest Palindromic Substring
Different approaches to find the longest palindrome substring from a given string in Java.
📈 Character Occurrence Count
How to count occurrences of each character in a string using HashMap in Java.
🚫 Remove Duplicates from Array
Learn to eliminate duplicate values from an array using Set and manual logic in Java.
🔷 Diamond Star Pattern
Print a symmetrical diamond pattern using nested loops in Java.
🔺 Pyramid Star Pattern
Learn how to print pyramid-shaped star patterns in Java using loops.
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