What are access modifiers in Java?

What are access modifiers in Java?

Access modifiers in Java are keywords that set the accessibility of classes, methods, and variables. They control where these elements can be accessed from.

Can you give me examples of the different access modifiers?

Sure! The main access modifiers in Java are: 1. public - accessible from anywhere. 2. private - accessible only within the same class. 3. protected - accessible within the same package and subclasses. 4. default (no modifier) - accessible only within the same package.

What happens if I don't use any access modifier?

If you don't use any access modifier, the default access level is applied, meaning the class, method, or variable is accessible only within its own package.

Can you show me a code example for each access modifier?

Absolutely! Here's a simple example:

class Example {
    public int publicVar;
    private int privateVar;
    protected int protectedVar;
    int defaultVar; // default access modifier
}