Java logical programs for practice which makes hiring process a lot better and smoother. Test Data Input number: 35 Expected Output: Number is positive Click me to see the solution. In this example, we're creating two variables a and b and using logical operators. In this Java java. Dive into coding challenges that improve your understanding and proficiency in Java, setting a solid foundation for intermediate challenges. Mar 24, 2025 · Debugging is the process of testing, finding, and reducing bugs (errors) in computer programs. In this program, we will learn two methods to remove white spaces from a string in Java. 94. Sample array: [1,2,4,5,6] Target value: 6. A palindrome number is a number in which the number is unchanged even if you reverse it. Each program is designed to target specific Java concepts and logic-building exercises. Feb 10, 2023 · In this tutorial, we will see Java interview programs for logic building. Whether you’re preparing for coding interviews, academic exams, or simply aiming to improve your Java programming skills, this PDF sheet will offer you ample opportunities to refine Program 24 - Write a program to convert given no. In this article, we present 20 logical problems based on arrays of strings to help you build a strong foundation and tackle real-world challenges. Program 26 - Write a program to find whether given no. [Solution] 94) Array Triplets Java Program-2. Why Practice Java Game Programs? Developing simple games in Java is an interactive way to practice programming and strengthen logic-building skills. 80%. That covers various Java Core Topics that can help users with Java Practice. Types of Errors in JavaScriptSyntax Errors: Nov 24, 2022 · 2. . ” If the user’s guess is lower than the random number, the program should display “Too low, try again. This is recommended if you don't have references to the original array arrayList anywhere else because It will actually create a new empty array. These questions are very common in all the Java 8 interviews, so save and practice the programs accordingly. Create a function that takes two numbers as arguments and returns their sum. These questions require the candidate to use logic and programming techniques to solve a given problem or task. Please clap, share and comment. These programs offer hands-on experience in solving real-world problems using OOP principles, reinforcing key concepts like encapsulation, inheritance, polymorphism Learn problem solving in Java from our online course and tutorial. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. Our Java programming exercises Practice Questions from all the major topics like loops, object In Java programming, commands are essential instructions that tell the computer what to do. Nov 20, 2017 · Java interview programs on arrays, Frequently Asked Java Array Interview Programs, Top Java array coding questions, Java array programs. Java Syntax refers to a set of rules that defines how Java programs are Java Help. The collection of 50+ Java programs provided in this PDF will serve as an excellent resource to sharpen your coding skills and prepare for your interview. 5. Below is the list of some advanced program in Java you must check: 1. It involves: Identifying errors (syntax, runtime, or logical errors). Here are some tips for improving your programming logic: Understand the problem: Read and understand the problem statement. You can also find java graphics GUI (Graphical User Interface) solutions like Java Applet, Java Java Program to Capitalize the first character of each word in a String; Java Program to Iterate through each characters of the string. Java programs are frequently asked in the interview. Object-Oriented Programming Basics in Java May 21, 2015 · Click here for Java program to remove all white spaces from a string. 64. In case if you are looking out for C Programs, you can check out that link. basic and commonly asked logical programs in the interview with clear explanations such as Fibonacci series, Calculate the factorial, Check Prime number, Check Perfect number, Check Armstrong number, Reverse a number, Check Palindrome number, Swap two numbers. Java programs for practice for intermediate. Each logic-based exercise is followed by more challenging problems from our extensive collection. Java Programs for Practice - Free download as Word Doc (. It will make your code more Dec 20, 2024 · While all these challenges might look intimidating, with constant practice, you'll start seeing patterns, developing problem-solving instincts, and acing interviews. Learn to code solving problems with our hands-on Java course! This repository is a collection of Java Logical Programs designed to:. Here is the list of Top 10 Java interview programs for logic building. 63. By practicing Java Strings Programs, you can improve your understanding of Strings and become a better Java programmer. We have given the most important logical programs. Write a Java program to check if a vowel is present in a string. Write a Java program to find all the distinct triplets such that the sum of all the three elements [x, y, z (x ≤ y ≤ z)] equal to a specified number. Write Java program to Generate Random Numbers from 0 to given Range. Learning Java helps to develop applica W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Feb 13, 2025 · Advanced Java Programs for Practice. Apr 26, 2024 · Best Websites to Practice Java. Help you master various algorithms and data structures. Rearrange Odd and Even Numbers. Implementing fixes and verifying correctness. Program 25 - Write a program to Display Invert Triangle using while loop. What are Logical operators in Java? Ans: Logical operators in Java are those operators that are used to form compound conditions by combining two or more conditions or relational expressions. Every program in Java is a set of commands. This article lists a few essential Java Strings Programs that you can practice. How many types of logical operators are supported by Java? Dec 9, 2021 · Java is the most popular programming language and widely used programming language. These java programs will help students to crack Java interview. Learn to code solving problems and writing code with our hands-on Java course. Examples addition(3, 2) 5 addition(-3, -6) -9 addition(7, 3) 10 Notes Don't forget to return the result. For Java Developers: Take your Java skills to the next level and work on exciting, high-paying remote projects with global companies. Program 27 - switch case demo 28. Java 8 Program to Convert List to Map Using Stream API Converting a list to a map is a common task in Java programming, especially when there's a need to index elements for quick lookup or when transforming data structures for more efficient processing. OOP: Java follows Object-Oriented Programming, treating everything as an object. to access the variables and methods of an object or a Class. Mar 13, 2025 · This resource offers a total of 5356 Java Programming problems for practice. Write a Java program which finds triplets in the given array whose sum is equal to given number. In Java, objects of the String class are immutable which means they cannot be changed once created. Mar 3, 2025 · JavaScript Program For Cloning A Linked List With Next And Random Pointer In O(1) Space: 17: JavaScript Program For Cloning A Linked List With Next And Random Pointer-Set 2: 18: JavaScript Program For Reversing Alternate K Nodes In A Singly Linked List: 19: JavaScript Program For Deleting A Given Node In Linked List Under Given Constraints: 20 The key takeaway of this section is that you should force yourself into thinking about handling bits of logic and juggling them as first-class citizens in Java 8. They are divided into various categories like arithmetic operators, assignment operators, comparison operators, logical operators, and so on. Below is the list of best websites to practice Java for beginners: 1. In this article, we will learn how to write a simple Java Program. Feb 19, 2025 · String is a sequence of characters. Write a Java program to rearrange all the elements of a given array of integers so that all the odd numbers come before all the even numbers. Above code will set the variable arrayList to a new empty array. This is known as dot notation and the structure looks like this-instanceOrClassName. 36. We use cookies to ensure Jun 22, 2024 · Java Array Programs: Basic Array Questions. Here is a huge 30+ Most Important collection of most important Java Programs with Output. Fibonacci series is a special type of series in which the next term is the sum of the previous two terms. doc / . Add Items to Array. Mar 22, 2025 · Basic Logical Programs in Java. of days into months and days. An editor is available to practice and execute the code. Java logical programming interview questions are designed to assess a developer's problem-solving skills and understanding of programming concepts. java. Show the answer. Practice and Modify: Run the programs and experiment by modifying the code to observe the effects of your changes. Improve your problem-solving skills. Try out the coding tasks, experiment with different operators, and don't be afraid to make mistakes – that's how we learn! Mar 5, 2025 · Write a JavaScript program to find the sum of squares of a numerical vector. Write Java program to count total number of Mar 7, 2025 · JavaScript Exercises, Practice, Solution: JavaScript is a cross-platform, object-oriented scripting language. Program 28 - Write a program to Logical operators are used when we want to check the truth value of certain statements. Provide solutions to common coding interview questions. time: It Mar 22, 2025 · Strings are one of the most important topics in Java programming, and mastering Java string Programs is essential for coding interviews. The document contains summaries of 30 Java logical programs. JavaScript Program to Convert the First Letter of a String into UpperCase; JavaScript Program to Count the Number of Vowels in a String; JavaScript Program to Remove a Property from an Object; JavaScript Program to Check Whether a String Starts and Ends With Certain Characters; JavaScript Program to Check if a Key Exists in an Object 6 days ago · Write a Java program to find the sum of the two elements of a given array equal to a given integer. Example 1. Java can be used for android, web, server development. Mar 26, 2025 · Write a Java program to create class called "TrafficLight" with attributes for color and duration, and methods to change the color and check for red or green. 6k learners. Java is used in all kind of application like as mobile application, desktop application, web application. This is a very good alternative to avoid the nested if statements and keep the code readable. Aug 7, 2024 · From basic arithmetic to complex logical operations, you now have the tools to manipulate data in your Java programs. 2. Inside a host environment, JavaScript can be connected to the objects of its environment to provide programmatic control over them. Solve over 180 coding problems and challenges to get better at Java. Complete your Java coding practice with our online Java practice course on CodeChef. Till then, happy coding🚀. Practice programming skills with tutorials and practice problems of Basic Programming, Data Structures, Algorithms, Math, Machine Learning, Python. By the end of these exercises, you will be equipped with advanced skills in Java, including multi-threading, file I/O, and optimization techniques for complex programs. Write a Java program to create a class called "Employee" with a name, salary, and hire date attributes, and a method to calculate years of service. Example of String Class in Java: [GFGTABS] Java // Java Program to Create a String import java. Java Array Program to Find the Largest Element in an Array; Java Array Program to Print a 2D Array; Java Array Program to Copy All the Elements of One Array to Another Array; Java Array Program to Check Whether Two Matrices Are Equal or Not; Java Array Program to Add Two Matrices Practice Java coding with fun, bite-sized exercises. Jan 8, 2022 · The knowledge of Logical operators is a key to start building the logic in Java. Write Java program to Print Fibonacci Series. Sagar Katkar. From basic string operations to advanced logic-building, these programs will help improve your problem-solving skills and boost your confidence for technical interviews. Move from 1 to 5 stars in programming contests using our guided method. Level up your coding skills and quickly land a job. Here we will learn logical operators like AND(&&), OR(||), NOT( Feb 15, 2025 · 1. Write a Java program to check if the given number is a prime number. Enhance your Java skills with these advanced Java programs designed for practice. is Armstrong or not. 50+ Data Structure and Algorithms Interview Questions The following programs are simple examples which demonstrate the logical operators. Covering topics like multithreading, collections, JDBC, design patterns, and more, these exercises help you deepen your understanding of Java development. Thank you for reading the article. Java basic programs like fibonacci series, prime numbers, factorial numbers and palindrome numbers are frequently asked in the interviews and exams. In this article, we will be talking about the bitwise AND operator, and the AND (&&) and OR (||) logical operators. Write a Java program to find array triplets such that sum of first two elements equals the third element. com. 1. In Java programming language, we use . This repository contains a collection of Java programs focused on enhancing logical thinking and problem-solving skills. 6. (Assume that each month is of 30 days) 25. 26. Start with beginner friendly challenges and solve hard problems as you become better. 12. Sep 18, 2023 · Preparing for a Java interview requires hands-on practice and a solid understanding of programming concepts. pdf), Text File (. Whether you're a beginner looking to strengthen your basics or an experienced programmer honing advanced skills, these Java programs provide a solid foundation t 6 days ago · 2) Features of the Java Programming Language: Easy: Java is considered easy to learn, with fundamental Object-Oriented Programming (OOP) concepts. Jun 10, 2024 · Java is an object-oriented programming language that is known for its simplicity, portability, and robustness. It includes 1129 main exercises, each accompanied by solutions, detailed explanations, and 4 to 5 related problems. ” The program should use a loop that repeats until the user correctly guesses the random number. Recommended Resources for Coding Interviews. These projects help in understanding loops, conditionals, recursion, and user interaction, which are crucial for Java interviews and real-world applications. Java is one of the most popular OOP language in the world. - devamit09/LOGICAL-PRACTICE Oct 8, 2024 · Enter the string: Java Reverse of Java is avaJ Java is not palindrome. Write a JavaScript program to compute the sum and product of an array of integers. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Jul 29, 2021 · For writing a Java Program, first we declare an array and assign the values 0 and 1 to the indexes 0 and 1 of the defined array. it will encourage me to write more such articles. 13. CodeKata by GUVI offers a coding practice platform that is designed to enhance coding skills through a series of challenges that replicate real-world problems posed by top companies like Microsoft, Walmart, and Samsung. docx), PDF File (. Feb 8, 2022 · We use operators in most programming languages to perform operations on variables. Overall, you get a good understanding of the Java programming world by practicing these Java programs from coding interviews. Dec 4, 2019 · Java Basic Logic Building Programs. Welcome to List of All Java Programs with Output PDF. However, programmers often find it difficult to find a platform to Practice Java Online. 66. Apr 25, 2024 · The Java Collection framework is a fundamental part of the Java programming language, It covers a major part of Java and acts as a prerequisite for many Advanced Java Topics. Copy and paste the following Java programs as Test. Write a Java program to print a Fibonacci sequence using recursion. These programs can be asked from control statements, array, string, oops etc. Logical operators help us in checking multiple statements together for their truthness. So, with ado further take a look at our free Java Exercises to practice and develop your Java programming skills. HackerEarth is a global hub of 5M+ developers. GUVI. Nov 10, 2023 · Practice object-oriented programming exercises in Java. The idea of this post is to target two types of people. 9. This is the best place to expand your knowledge and get prepared for your next interview. dev today! Write a program to print remark according to the grade obtained using switch statement. Mar 12, 2024 · The Java Collection framework is a fundamental part of the Java programming language, It covers a major part of Java and acts as a prerequisite for many Advanced Java Topics. Let's understand each of the above logical programs one by one. Remember, practice is key to mastering these concepts. txt) or read online for free. time. In this tutorial, you'll learn about different types of operators in Java with the help of examples. java file, and compile and run the programs −. Here we covered over the list of 500+ Java simple programs for beginners to advance, practice & understood how java programming works. Java Stdin and Stdout I. Oct 7, 2024 · If the user’s guess is higher than the random number, the program should display “Too high, try again. 65. Learn to use constructors, destructors, inheritance, interfaces among others. Join Index. Java Programs | Java Programming Examples. All these programs are Mar 11, 2025 · The coding questions in this article are difficulty-wise ordered. Apr 14, 2023 · Java Logical Programming Interview Questions. Nov 1, 2023 · Control flow statements allow you to control the flow of your Java programs and add logic to them. Write a program to check whether a person is eligible to vote or Not using Practice with our curated set of problems to excel at Competitive Programming. Mar 11, 2025 · Write a Java program to get a number from the user and print whether it is positive or negative. Earn XP, unlock achievements and level up. Jun 22, 2024 · Java Strings are a fundamental part of the Java programming language. Write a JavaScript program to add items to a blank array and display them. 27. Review collected by and hosted on G2. You will learn basic math, conditionals and step by step logic building to solve problems easily. io. May 16, 2023 · 93) Array Triplets Java Program-1. *; Jan 31, 2023 · Here, we come to the end of Java 8 coding interview questions and answers. Sum and Product of Array. Write Java program to Find addition of N integer numbers. Sep 30, 2022 · Logical programs are the key to learning and understanding any programming language well. The Logical operators are extensively used in programs with many constraints. Mar 17, 2025 · Write a Java program to get the character at the given index within the string. I hope it will be helpful for you guys while preparing for an interview. Learn Java 365. Designed for self-practice to sharpen coding and analytical abilities in Java. At the beginning of your Java programming practice, it’s good to know a few basic principles: Mar 2, 2025 · Java programs: Basic Java programs with examples & outputs. The following list of 50 array coding problems covers a range of difficulty levels, from easy to hard, to help candidates prepare for interviews. arrayList = [];. Examples of programs include converting a string to a number without using parseInt(), reversing a string using recursion, checking if two words are anagrams, finding distinct Our “Java Programs (100 Programs): PDF Sheet” serves as a valuable tool to aid your coding practice by providing a wide variety of Java programs to work on. This repository serves as a foundational resource for anyone who wants to sharpen their problem-solving skills before diving into Data Structures and Algorithms (DSA). Sample Output: Original String = Java Exercises! The character at position 0 is J The character at position 10 is i Click me to see the solution. Easy Java (Basic) Max Score: 5 Success Rate: 96. Java Example Solution Code; Java String Introduction (video) Java Substring v2 (video) Java String Equals and Loops; Java String indexOf and Parsing; Java If and Boolean Logic If Boolean Logic Example Solution Code 1 (video) If Boolean Logic Example Solution Code 2 (video) Java For and While Loops; Java Arrays and Loops; Java Map Dec 13, 2024 · In many interviews star, number, and character patterns are the Most Asked Pattern Programs to check your logical and coding skills. This hands-on approach will solidify your understanding. Check Out Core Java Tutorials . Write a Java program to solve quadratic equations (use if, else if and else). Competitive Programming Preparation (For Ist and IInd Year Students): It is recommended to finish all questions from all categories except possibly Linked List, Tree, and BST. You can take a pdf of each program along with source codes & outputs. The programs cover a range of topics including string manipulation, number conversion, array processing, prime number identification, and matrix operations. It's like Duolingo for learning to code. Java Exercises: Mar 5, 2025 · Java basic coding practice problems covers essential topics such as input/output operations, arithmetic and logical operators, type conversion, conditional statements, loops, and more. Click me to see the solution. Once you are comfortable with basic syntax, you should practice logical programs to improve problem-solving skills: Master beginner Java skills with our comprehensive list of top 30 exercises. Use these practice problems and challenges to prove your coding skills. How do you check if a list of integers contains only odd Practice over 5000+ problems in coding languages like Python, Java, JavaScript, C++, SQL and HTML. Learn how to create subclasses that override methods, add new methods, and prevent certain actions. We've performed a logical AND operation and printed the result. Using debugging tools to analyze code execution. How do you swap two numbers without using a third variable in Java? 3. You can practice and find the solution to various categories of programs with a logical, explanation. Exercise Instructions: Start with the first exercise and attempt to solve it before checking the hint or solution. Java Program to Differentiate String == operator and equals() method; Java Program to Implement switch statement on strings; Java Program to Calculate simple interest and compound interest String arrays are a fundamental part of Java programming, and mastering them is essential for anyone preparing for Java interviews. Sep 7, 2023 · Java Program to Find a Mother Vertex in a Graph; Unique Number in Java Program; Carriage Return in Java; JDBC MCQ; Java Program to Find Distance of Nearest Cell Having 1 in a Binary Matrix; OOPs MCQ; Java Program to Find the Number of 'X' Total Shapes; Java Code for DES; Reverse Level Order Traversal in Spiral Form in Java; Pig Latin Program in Mar 21, 2025 · Logic building is about creating clear, step-by-step methods to solve problems using simple rules and principles. This Java OOP exercise is designed to deepen your understanding of Java Object-Oriented Programming (OOP) concepts and refine your Java coding skills. Sep 25, 2017 · Java is one of the most popular and widely used programming languages and platforms. Pattern printing programs not only improve your understanding of loops but also sharpen your coding efficiency and creativity. For example, if 0 and 1 are the two previous terms in a series, then the next term will be 1 (0+1). Write a program to Menu driven program using switch statement ( Find addition, subtraction, multiplication and division of to integer numbers ) View Solution. Question 1: Check if number is odd or even? Level up your coding skills and quickly land a job. LocalDate class is imported which represents to display the current date. Why are Java Pattern Programs important? They develop problem-solving skills, logical thinking, and reinforce Java fundamentals like loops and conditional statements. Nov 16, 2024 · Are You Interested in Becoming a Full Stack Java Developer? Mastering Java is a rewarding journey that opens up numerous opportunities in software development, from building simple applications to designing complex systems. The best thing that I like about it the most is that all the exams conducted on HackerEarth are full proctored and it takes various parameters into account while attending assessment like video, audio, tab switching etc. 199+ List of Basic Java Programs For Practice With Solutions. Java programs are frequently asked in interviews. These exercises are categorized into Basic, Easy, and Medium levels, allowing you to gradually strengthen your Java programming skills. One method makes use of in-built methods which will be useful when you are developing the applications and another method doesn’t use in-built methods which will be helpful for your interview. Mar 26, 2025 · Java Inheritance Programming : Exercises, Practice, Solution - Improve your Java inheritance skills with these exercises with solutions. Reverse a Number/Palindrome Number. 4. The syntax of Java programming language is very closely aligned with C and C++, which makes it easier to understand. This Java Hello World article will guide you through writing, compiling, and running your first Java program. View Solution. Then we write the logic to get the values of all the indexes of the total Fibonacci series length. 67. Below the java program to print the Fibonacci series. [Solution] 95) How to sort an array of 0s and 1s? [Solution] Jan 2, 2025 · In this article, we have provided Java Practice Programs. The document provides a list of over 100 Java programs divided into categories such as number-based logical programs, number system conversions, series programs, string programs, common logical programs, servlet programs, JDBC programs, reflection programs, matrix Jun 26, 2023 · Here are the some Java 8 interview sample coding questions with answers. Write Java program to Find Factorial of a Number. 8. It includes exercises such as algorithms, data structures, pattern printing, recursion, and other logical challenges. It’s the heart of coding, enabling programs to think, reason, and arrive at smart solutions just like we do. HackerEarth is a great platform for online job assessments. Start your journey to Java mastery today! Mar 26, 2025 · Array is one of the most widely used data structure and is frequently asked in coding interviews to the problem solving skills. Jan 16, 2025 · Java OOPs Practice Programs. Explore the Programs: Browse through the programs in the repository. Thank you for providing this type of content for practice. Java Logical Programs Welcome to LogicBuilding101, a curated collection of 101+1 must-do problems designed to build your programming logic from scratch. These operators are also called Boolean operators because they return a boolean value. In this article, we will learn about the String class in Java. fieldOrMethodName Jul 1, 2024 · These Java programs also touch base on useful operators like bit-shift and bitwise operators, modulus operators, and others. Solve Quadratic Equation. Practice writing programs using if statements, for loops, and while loops to get comfortable with these fundamental building blocks of Java. Secured Feature: Java provides a secured feature, ensuring the development of virus-free and tamper-free systems. It's a really good way to practice any programming language. 3. one of the best ways to prepare for programming interviews. Jun 7, 2016 · Write a Java program to test if an array of integers contains an element 10 next to 10 or an element 20 next to 20, but not both. Test Data Input a: 1 Input b: 5 Input c: 1 May 21, 2024 · Here are 18 common logic-based coding problems often asked in coding interviews, along with their solutions in Java: These problems are more advanced and cover a wider range of algorithmic concepts… Method 1. These commands are written in a specific way so the computer can understand and execute them. Jan 21, 2025 · Java Pattern Programs are exercises that use nested loops and print statements to create patterns in Java, helping improve control flow and logical thinking. uvqou ehntxph gxoxgn cpqcq qisf kyqia hepn ayr mtmkida dqri azm hxwzk ona gan dbnvvjo