java-interview-prep

• 1 OOPS
• 2 Scope
• 3 Main-not-found-error
• 4 Static and Non-static member Calling
• 5 Verbose
• 6 Import & Package
• 7 Inheritance
• 9 Method Area
• 10 static
• 11 Class Loader Subsystem
• 12 JVM stack
• 13 this keyword
• 14 super keyword
• 15 constructors
• 16 static, init & local blocks
• 17 final keyword
• 18 Polymorphism
• 19 static import
• 20 wrapper class
• 21 singleton design pattern
• 22 Immutable
• 23 abstract keyword
• 24 interface
• 25 Object class
• 26 string class notes/string class codes
• 27 StringBuffer class
• 28 StringBuilder class
• 29 String vs StringBuffer vs StringBuilder
• 30 Array class
• 31 Arrays class
• 32 Exceptions
• 33 throw keyword
• 34 throws keyword
• 35 throw vs throws
• 36 try catch
• 37 deadcode vs unreachable code
• 38 finally block
• 39 automatic resource management
• 40 user input
• 41 overriding with access modifiers
• 42 threads
• 43 concurrency vs parallelism
• 44 synchronized keyword
• 45 Runnable vs Thread
• 46 wait(), notify() and notifyAll()
• 47 sleep() vs wait()
• 48 yield() vs join()
• 50 hashCode() and equals()
• 51 Collection/collection-codes
• 52 hashmap
• 53 linkedhashmap
• 54 hashtable
• 55 treemap
• 56 concurrenthashmap
• 57 concurrenthashmap vs synchronized hashmap
• 58 Set
• 59 List
• 60 Queue