pointers concept are not supported by java.and to reduce 
the code redundency

Suppose if u inherit from multiple classes and in these 
classes a method of same name exists then the class which 
inherits from these classes gets confused that which one to 
inherit. And this is also because of reducing complexity. 
And above all u will get the multiple inheritance concept 
in java through interfaced.

because we cann't extend more than one class in java

when ever a class extending more then one class. if f1()
method is present all exteding  ...  when we call f1()
method...jvm will confused which class method is called this
lead to ambuity error.....
 java does'nt support multiple inheritance.......

Whenever one Sub Class Extends more than one classes, at 
the time of creating that class object, JVM gets confused 
to call the parent class constructor as well as methods.

To avoid this ambuiguity, java doesn't support multiple 
inheritance