Access Modifiers
Class , Varaible , Method - Java
Security - [( Class , Variable , Method ) (Access -Yes/No)}
★( Class, variable , method ) The ability to access and not access is determined according to the security (modification) given to access.
Access Modifiers What are the 4 types?
★ Public
★ Protected
★ Default
★ Private
Public
(class variable methods) If the project is public, this (class variable method) accesses any class in any package.
Ex : Human
Human Java Package - Human
Human Java - (Human package / java class)
Man Java Package - Man -
Man Java - (Man package / java class)
Child Java Package - Child
Child Java - (Child package / java class)
Protected
class (when protected is run inside the class) package (protected class is inside the package) sub class (protected class is inside the sub class that is formed as the supper class) Protected class variable method access.
Ex : Human
Human
Human Java
Human 1.Java
Man
Man .Java
Human 1.java
Protected void run () {
}
Man .java - run (); = Access
Human.java
Protected void eat () {
}
Human 1.java
Class Human 1 extends human {
Eat (); = access
}
Default
class (in the default class) package (in the package of the default class) default class, variable, method access.
Ex : Human.java
Default class human
(Default) void run () {
}
Class human = extends human {
Run (); = access
}
}
Private
Only class (private class) can access private class, variable, method.
class man extends human { (private does not get anything from human.
}
Ex : Private class human {
Private String d;
d = "abc12";
Private int a = 10
Int b = 5;
Int c = int a + (private) int b; = Access
Private void run () {
}
}
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