Object fields can be set and get from inside and outside the class.
OCAJP>cat test.java
public class test{
tester t = new tester();
int d = t.c; //read c and write d
}
class tester {
private int a = 1; //write a
private int b = 2; //write b
protected int c = a + b; //read a, b and write c
}
OCAJP>javac test.java
OCAJP>
