Java Quiz Last Updated : 08 Oct, 2025 Comments Improve Suggest changes 9 Likes Like Report The best way to scale up your coding skills is by practicing the exercise. This quiz covers all the topics of Java programming. So, whether you are a beginner or an experienced Java developer, this Java Programming Quiz will help you scale up your Java skills and identify areas for improvement. No registration is required to start the test. Simply choose a test and begin your Java journey.Java Basics and IdentifiersVariables, OperatorControl Statements and LoopsMethodsJava ArraysArray ProgramsString BasicsString ClassesClasses and ObjectsConstructorsInheritance and AbstractionPolymorphism and PackagesInterfacesInterface types and ComparatorCollectionList, ArrayList, LinkedListSet and HashSetQueue and Map InterfaceIterators, Comparator vs ComparableJava ExceptionsException HandlingThread Basics and LifecycleThread Methods and Daemon Threads File Handling File Writing Lambda Expressions and Streams IO BasicsBufferedReader vs Scanner and Fast I/OSynchronization BasicsDeadlocks and SynchronizationConcurrency Locks and Reentrant LocksRegex Basics and Pattern MatchingNetworking Basics and ProtocolsSockets and Server CommunicationJDBCJava Memory AllocationHeap vs StackJVM Memory Management and Garbage Collection Comment K kartik Follow 9 Improve K kartik Follow 9 Improve Article Tags : Java Explore Java BasicsIntroduction to Java3 min readJava Programming Basics9 min readJava Methods6 min readAccess Modifiers in Java4 min readArrays in Java7 min readJava Strings8 min readRegular Expressions in Java3 min readOOP & InterfacesClasses and Objects in Java9 min readAccess Modifiers in Java4 min readJava Constructors4 min readJava OOP(Object Oriented Programming) Concepts10 min readJava Packages7 min readJava Interface7 min readCollectionsCollections in Java12 min readCollections Class in Java13 min readCollection Interface in Java4 min readIterator in Java4 min readJava Comparator Interface4 min readException HandlingJava Exception Handling6 min readJava Try Catch Block4 min readJava final, finally and finalize4 min readChained Exceptions in Java3 min readNull Pointer Exception in Java5 min readException Handling with Method Overriding in Java4 min readJava AdvancedJava Multithreading Tutorial3 min readSynchronization in Java7 min readFile Handling in Java4 min readJava Method References9 min readJava 8 Stream Tutorial7 min readJava Networking6 min readJDBC Tutorial5 min readJava Memory Management4 min readGarbage Collection in Java6 min readMemory Leaks in Java3 min readPractice JavaJava Interview Questions and Answers15+ min readJava Programs - Java Programming Examples7 min readJava Exercises - Basic to Advanced Java Practice Programs with Solutions5 min readJava Quiz1 min readJava Project Ideas For Beginners and Advanced15+ min read Like