What are the core concepts of Java?

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OOPs, Flow control, String Handling, generics, exception, threading, collection, IO, JDBC are some core concepts of Java.
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You need to know the following: • Introduction to Java • Guide to install Eclipse and Java • Introduction to OOPS • Data Types and Structure of Class in Java • Access Modifiers in java • Methods and Constructor • Static and This keyword in Java • Inheritance • Polymorphism • Encapsulation • Abstraction • Lists • Sets • Exception...
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You need to know the following: • Introduction to Java • Guide to install Eclipse and Java • Introduction to OOPS • Data Types and Structure of Class in Java • Access Modifiers in java • Methods and Constructor • Static and This keyword in Java • Inheritance • Polymorphism • Encapsulation • Abstraction • Lists • Sets • Exception Handling • Input/output (File I/O) JDBC connection read less
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OOPS, Exceptions, Multi threading
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The core concepts are as below; Exception Collection PolyMorphism Multithreading Abstraction & Interface You can clear any interview question if you are strong on the above concepts
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On high level following are the core concept in Core Java • OOPs concept • Knowledge about all java keywords • Exception handling • Multithreading • Inner classes • File handling (I/O) • Collection framework • Date and time handling API • Regular expression in java • String handling • Generics • Internal...
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On high level following are the core concept in Core Java • OOPs concept • Knowledge about all java keywords • Exception handling • Multithreading • Inner classes • File handling (I/O) • Collection framework • Date and time handling API • Regular expression in java • String handling • Generics • Internal structure of data structure • Latest java (JDK 1.5, 1.6,1.7 and 1.8) features. • java reflection and there are many more things in core java. read less
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