Java Interview Notes: 700 Java Interview Questions Answered

Java Interview Notes: 700 Java Interview Questions Answered

Java Interview Notes incorporate most critical topics discussed during Java technical interview round, along with the interview questions for each concept. This book also contains lots of code snippets and figures to explain matters.Concepts in the book are organized in very precise and concise manner, in small chapters and are to the point.CONTENT:Java Fundamentals: Java Program Anatomy Java Program and JVM Data Types Naming Convention Object class Access Modifiers static final static initialization block finally() finalize() Widening vs Narrowing Conversion getters and setters varargs vs object array default interface method static interface method Annotations Preferences Pass by value or referenceObject Oriented Programming: Polymorphism Parametric Polymorphism Subtype Polymorphism Overriding @Override Overloading Abstraction Inheritance CompositionFundamental Design Concepts : DI vs IoC Service Locator Diamond Problem Programming to Interface Abstract class vs Interface Internationalization and Localization Immutable Objects CloningData Types : NaN EnumSet Comparing Data Types Float comparison String comparison Enum comparison enum vs public static int field Wrapper Classes Auto boxing and Auto unboxing BigInteger and BigDecimalStrings : String Immutability String Literal vs Object String Interning String Pool Memory Management Immutability - Security issue Circumvent String immutability StringBuffer vs StringBuilder UnicodeInner Classes: Inner Classes Static Member Nested Class Local Inner Class Non-Static Nested Class Anonymous Inner ClassFunctional Programming: Lambda Expression Functional Interface Pure Functions Fluent InterfaceGenerics : Generics Generics-Type Wildcards Generics - Method Java Generics vs Java Array Generics - Type Erasure Co-variance Contra-variance Co-variance vs Contra-varianceCollections : Collection design aspects Collection Fundamentals Collection Interfaces Collection Types Set List Queue Map Algorithms Comparable vs Comparator hashCode() and equals() HashTable vs HashMap Synchronized vs Concurrent Collections Iterating over collections fail-fast vs fail-safeError and Exception: Exception Checked vs Unchecked vs Error Exception Handling Best Practices try-with-resourceThreading : Threading Terms Thread Lifecycle Thread Termination Runnable vs Thread Runnable vs Callable Daemon Thread Race Condition and Immutable object Thread PoolSynchronization : Concurrent vs Parallel vs Asynchronous Thread Synchronization Synchronized method vs Synchronized block Conditional Synchronization Volatile static vs volatile vs synchronized ThreadLocal Storage wait() vs sleep() Joining Thread Atomic Classes Lock ReadWriteLock Synchronizers Barrier Semaphore Phaser Exchanger Latch Executor Framework Executor Service Fork-Join FrameworkReflection : Purpose of reflection Drawbacks of ReflectionData Interchange: JSONMemory Management: Stack vs Heap Heap fragmentation Object Serialization Garbage Collection Memory Management Weak vs Soft vs Phantom ReferenceUnit Testing: Why unit testing? Unit vs Integration vs Regression vs Validation Testing private members Mocking and Mock ObjectsJava Tools: Git Maven Ant Jenkins

Author: Jolly M

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