Pregunta de entrevista de SysArc Infomatix
1) What is HashMap and ConcurrentHashMap 2)What is InterFace And Abstract Class 3)How To Create Immutable Class ? 4)Difference between Observable And Promise?
1) What is HashMap and ConcurrentHashMap 2)What is InterFace And Abstract Class 3)How To Create Immutable Class ? 4)Difference between Observable And Promise?