Some basic terminologies in Java

So it’s day 2 of the learning journey and today we will get to know some of the basic terminologies used frequently in java.

1. Classes –
   • classes can be identified as Nouns in the problem statement
   • they are also called the blueprint of an object.
   • as per the rule every single class should define the single object and should contain data related to that object only.
   • For example – A human
2. Objects –
   • also called as an instance of the class.
   • consists of the exact values of the fields/properties defined by a class
   • objects are always related to the class.
   • For example – If humans are class then John is one of its objects.
3. Fields –
   • fields can be of both objects as well as classes they are also called attributes or property.
   • they define actual values that an object of a class can hold.
   • only a method of an object should be allowed to change values of a field of the same object.
4. Methods –
   • it can also be of both classes and objects.
   • can be understood as behaviours of an object or procedures.
   • are functions associated with an object.
   • changes values of fields of an object.
5. Naming Convention in Java:-
   • PascalCase => used for naming Class.
   • camelCase => used for naming Fields, Methods.
   • SCREAM_CASE => used for naming Constant Values.
   • lowercase => used for naming packages.
6. Some key features of Java:-

i. Object-Oriented
ii. Platform Independent
iii. Simple and Easy to learn
iv. Architecture Neutral
v. Portable
vi. Robust
vii. Multi-threaded
viii. Interpreted-byte code
ix. High performance
x. Distributed
xi. Dynamic

原文链接：Some basic terminologies in Java