JAVA NOTES FOR
BEGINNERS
• Key Points:
• Java Development Kit (JDK): Software
development environment for building Java
applications.
• Think of buttons on a remote control
for TV. Each button performs a task.
Similar to functions in Java.
• Examples: Sending emails,
converting weight, and validating user
input.
• Code Editor: Software for writing and
managing code.
• Examples: IntelliJ, NetBeans, and
Eclipse.
• Java Class and Method:
• Class: A container for related
methods or functions. Similar to
organizing products in a supermarket.
• Method: A function that belongs to a
class. Similar to a function part of a class.
• Access Modi er: A keyword that
determines whether other classes and
methods can access the class or method.
fi
BEGINNERS
• Key Points:
• Java Development Kit (JDK): Software
development environment for building Java
applications.
• Think of buttons on a remote control
for TV. Each button performs a task.
Similar to functions in Java.
• Examples: Sending emails,
converting weight, and validating user
input.
• Code Editor: Software for writing and
managing code.
• Examples: IntelliJ, NetBeans, and
Eclipse.
• Java Class and Method:
• Class: A container for related
methods or functions. Similar to
organizing products in a supermarket.
• Method: A function that belongs to a
class. Similar to a function part of a class.
• Access Modi er: A keyword that
determines whether other classes and
methods can access the class or method.
fi
