If any of the method or data member is declared private then that private variable or member method is not inherited to the derived class. Consider an example of this :

class BasicClass {
	int a = 100; // by default package access
	private int j = 200;

	void functionBase() // by default package access, will be inherited
	{
		System.out.println("inside BasicClass");
	}

	private void functionBase2() // this function will not be inherited in
									// derived class
	{
		System.out.println("inside provate function");
	}

	public void functionBase3() // will be inherited
	{
		System.out.println("inside functionbase3");
	}
}

public class PrivateInheritance extends BasicClass {
	public static void main(String[] args) {
		BasicClass b = new BasicClass();
		System.out.println(b.a);// a is visible here, because of package access
		b.j; // gives error, j not visible here
		b.functionBase(); // will execute as functionBase() available here
		b.functionBase2(); // will give error
		b.functionBase3(); // will execute
	}
}