Answer Posted / priyanka patil

The reasons for omitting multiple inheritance from the Java
language mostly stem from the "simple, object oriented, and
familiar" goal. As a simple language, Java's creators
wanted a language that most developers could grasp without
extensive training. To that end, they worked to make the
language as similar to C++ as possible (familiar) without
carrying over C++'s unnecessary complexity (simple).

In the designers' opinion, multiple inheritance causes more
problems and confusion than it solves. So they cut multiple
inheritance from the language (just as they cut operator
overloading). The designers' extensive C++ experience
taught them that multiple inheritance just wasn't worth the
headache.

Instead, Java's designers chose to allow multiple interface
inheritance through the use of interfaces, an idea borrowed
from Objective C's protocols. Multiple interface
inheritance allows an object to inherit many different
method signatures with the caveat that the inheriting
object must implement those inherited methods. Multiple
interface inheritance still allows an object to inherit
methods and to behave polymorphically on those methods. The
inheriting object just doesn't get an implementation free
ride

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