5. Object Attributes

Some attributes should be shared by all operations of our object. For example,

public class Number {
    // available to all methods:
    private int count;
    public void method1() {
        count = 1;
    }
    public void method2() {
        count = 2;
    }
}

Here, attribute count is declared within the scope of the Number class.

This means that now attribute count and both methods are declared in the same scope, at the class level.

Consequently, both methods will have access to the count attribute.

Each Number object will have its own copy of the count attribute.

Both methods are modifying the same attribute in memory by setting count to a specific value.