The previous page is sending you to https://4.bp.blogspot.com/-BikiqxU78vg/XKQQ8TeHmVI/AAAAAAAANnA/XnRcdiwEqaAgraU5wHOAj4jt23z1LO3owCEwYBhgL/w1200-h630-p-k-no-nu/Object%2BOriented%2BDesign%2BPrinciples%2Bfor%2BJava%2Bprogrammers.png.

 If you do not want to visit that page, you can return to the previous page.