understand the concept of interfaces

i am new to java and i am in the learning phase of core java .i know that
Java doesnt support Multiple Inheritance instead the work around is to use
Interface

but the doubt i have is interface are nothing but empty abstract
methods.when ever i implement those methods in a class i have to write the
method body in the class.. .if interface is just emply methods then what is
the point of having those empty method names under one tag..

i dont know whether my understanding about interface is correct.if not
please correct me and also if possible give me an explanation...


regards
Prejith


.

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