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We create abstract classes and interfaces.
So that we can use their methods in some other class with some modifications.
Like this
class A
{ int a,b,c;
public void accept()
{
c=a+b;
}
}
class b extends A
{ int d;
public void accept ()
{
c=a+b+d;
}
}
So that we can use their methods in some other class with some modifications.
Like this
class A
{ int a,b,c;
public void accept()
{
c=a+b;
}
}
class b extends A
{ int d;
public void accept ()
{
c=a+b+d;
}
}
0
0
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