Important topics in core java for interview

What is Java?rnJava is a programing language and a platform.rnJava is a high level, robust, object-oriented and secure programing language.rnPlatform: Any hardware or code environment within which a program runs, is understood as a platform. Since Java has a runtime environment (JRE) and API, it's known as a platform.rnImportant topics in core java for interviewrnAre you the one who has set to be told java however don’t grasprn• Where to start? • What java books to follow? • about necessary topics to hide in javarn• about on-line free materials for learning javarn• about on-line paid coursesrnThis article goes to assist you with everything that you simply have to be compelled to grasp to go begin your java journey from beginner to skilled. rnHere we'll tell about: • the necessary topics to be told in core java, • java books to follow, • java on-line free courses, • java on-line paid coursesrnOur initial move ought to be to be told the necessary topics which will be useful in building sensible comes. For details: https://www.globaltrainingbangalore.com/core-java-training-in-bangalore/rnImportant topics in core javarnGiven below are the important topics that you should cover to get well acquainted and begin working on java technologies.rnBasic of javarn• class and objectsrn• java data types, • java variables (class variable, instance variable, local variable, parameter variables) • Why java is platform independence? • jdk, jre, jvm, • bytecode, path, classpathrn• Public static void main (String [] args) → Explain the significance of each words in it. • java methodrn• java constructorrn• java program internal workingrn• java vs javac commandrn• Also learn few basic programs (click the link for programs)rnDecision making statements • if, • if-else, • if-else-if, andrn• switch statementrn• Basic programs on decision makingrnLoop controls • for loop, • while looprn• do-while looprn• break and continuern• enhanced for loop • Loop control programsrnObject Oriented Programming conceptsrn• Polymorphism → Overloading and Overridingrn• Encapsulation → How to achieve encapsulation? • Abstraction → Ways to achieve partial and complete abstraction using abstract class/interfacern• Inheritance → Different types of inheritancern• Why multiple inheritance not supported by java classes? https://www.trainingmarathahalli.com/core-java-training-in-marathahalli/rnJava Stringsrn• ways to create string objectsrn• Why string is immutable? • == vs equalsrn• string buffer, string builder and their differencern• split method, String tokenizerrn• Various methods of String like length, substring, concat, tochararray, toupper, tolower, etc.rnCollection interface and classesrn• Lists like Arraylist, Linkedlist, Vector and difference between themrn• Sets like Hashset, LinkedHashSet, TreeSet and differences between themrn• Maps like HashMap, LinkedHashMap, TreeMap and differences between themrn• List vs Set vs Maprn• Collection vs Collectionsrn• Hashtable and hashing techniquern• hashcode and equals contractrn• Using different Collection, storing elements in them, fetching elements, sorting and searching elements.rnGenerics in javarn• advantages of using genericsrn• How to use generics in java program?rnException handling mechanismrn• exception vs errorrn• exception hierarchy and what is parent class of all exceptionrn• try-catchrn• finallyrn• correct sequential order of java try with multiple catch and a finallyrn• checked vs unchecked exceptionrn• throw, throws and their differencern• custom exceptionrnMultithreading conceptsrn• ways of creating java threadrn• thread life cyclern• methods like sleep, wait, notify, notify allrn• synchronizationrn• deadlockrnDate-time concepts in javarn• DateFormatrn• SimpleDateFormatrn• convert from String to Datern• convert from Date to Stringrn• convert java.util.Date to java.sql.DaternJDBCrn• Establishing jdbc connectionrn• different statements like statement, prepared statement, callable statementrn• Important keywordsrn• super, • this, • final, • finally, • finalize, • staticrnfor details: https://www.trainingmarathahalli.com