This page includes a list of Java programs for beginners to learn Java programming language by practicing these programs. Each blog post in this list dives into a specific Java program, complete with detailed explanations and sample output to bolster your understanding. To understand a programming language you must practice the programs, this way you can learn the language faster. This page includes Java programs on various Java topics such as control statements, loops, classes & objects, functions, arrays, etc. All the programs are tested and provided with the output. Whether you're new to Java or looking to deepen your expertise, this resource offers a valuable boost to your interview preparation. Start your journey towards becoming a Java interview pro with us!
Note that these programs are frequently asked in Java interviews. All these Java programs have step-by-step explanation along with it's output.
Java String Programs with Output
- Java Program to Find the First Non-repeated Character in a String
- Java Program to Check Palindrome String
- Java Program to Find Duplicate Characters in a String
- Java Program to Find Duplicate Words in a String
- Java Program to Find All the Permutations of a String
- Java Program to Count Occurrences of Words in a String
- Java Program to Count the Occurrences of Each Character
- Java Program to Count Vowels and Consonants in a String
- Java program to Count the Number of Duplicate Words in a String
- Java Program to Count Number of Words in Given String
- Java Program to Count the Number of Occurrences of Substring in a String
- Java Program to Count the Occurrences of Each Character in String
- Java Program to Merge Two String Arrays
- Java Program to Remove Duplicate Words from String
- Java Program to Reverse a String(5 ways)
- Java Program to Reverse Each Word of a String
- Java Program to Swap Two Strings
- How to Check if the String Contains Only Digits
- How to Check if the String Contains Only Letters
- How to Check If the String Contains Only Letters or Digits
Java Array Programs with Output
Java Number Programs with Output
Java 8 Programs with Output
- Java 8 Program to Find the Frequency of Each Character in a Given String
- Java 8 Program to Find the Maximum Number and Minimum Number in a List
- Java 8 Program to Find the Second Largest Number in the List of Integers
- Java 8 Program to Find the Age of a Person if the Birthday Date has Given
- Java 8 Program to Find the Sum of All Digits of a Number
- Java 8 Program to Print Even Numbers from a List
- Java 8 Program to Remove Duplicate Elements from a List
- Java 8 Program to Retrieve Last Element of a List of Strings
- Java 8 Program to Reverse Each Word of String
- Java 8 Program to Sort List of Strings Alphabetically
Java Pattern Programs with Output
- Java Program for Diamond Shape Pattern
- Java Program to Print Character Pyramid Pattern
- Java Program to Print a Pyramid
- Java Program to Print an Inverted Pyramid
- Java Program to Print a Hollow Pyramid
- Java Program to Print a Diamond Pattern
- Java Program to Print a Right Triangle Star Pattern
- Java Program to Print an Inverted Right Triangle Star Pattern
- Java Program to Print a Left Triangle Star Pattern
- Java Program to Print a Pascal's Triangle
- Java Program to Print a Fibonacci Pyramid
- Java Program to Print a Number Pyramid
- Java Program to Print a Reverse Number Pyramid
- Java Program to Print a Hollow Square Pattern
- Java Program to Print a Cross (X) Pattern
- Java Program to Print a Plus (+) Pattern
- Java Program to Print a Butterfly Pattern
- Java Program to Print a Diamond Shape with Numbers
- Java Program to Print an Alphabet Pyramid
- Java Program to Print a Heart Shape Star Pattern
Java Programs on OOP (Object-Oriented Programming) with Output
Java Programs on Data Structures and Algorithms
- Java Program to Reverse a Linked List
- Detecting a Cycle in a Linked List Using Java
- Finding the Middle Element of a Linked List using Java
- Merging Two Sorted Linked Lists using Java
- Queue Implementation in Java Using Array
- Queue Implementation in Java Using ArrayList
- Queue Implementation in Java Using LinkedList
- Queue Implementation in Java Using Two Stacks
- Priority Queue Implementation in Java Using Linked List
- Linked List Implementation in Java Using Arrays
- Doubly Linked List Implementation in Java
- Circular Linked List Implementation in Java
- Deque Implementation in Java
- Finding the Height of a Binary Tree in Java
- Determining if a Binary Tree is Balanced in Java
- Implementing Binary Search Tree (BST) Operations in Java
- Finding the Lowest Common Ancestor in a BST using Java
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