class A {
private int a;
public A(int a) { this.a = a; }
public int getA() {return a;}
}
class B extends A {
public B(int b) { super(b); }
public int getB() {return getA();}
}
int result = new B(10).getA();
result will be 10. Private field a in class A is kind of inherited to B but B can’t access it directly. Only by using the public/default/protected accessor methods defined in class A. B is A so it always has all the same fields that are in A and possible some new fields defined in class B.