Doubt in simultaneous 'implementation' and 'extension'

[ajaygargnsit]

////////// Start of code snippet ///////////////

interface i1
{
public void f1();
}

interface i2 extends i1
{
public void f2();
}

class c1 implements i1
{
public void f1(){}
}

// Error flashed for this class
class c2 implements i2 extends c1
{
public void f2(){}
}

///////////////////// End of code ///////////////////////////////

Now, this is what I assume ::
Since c2 is a derived class of c1, implementation of f1() must be visible in c2.

But the compiler says that implementation of f1() needs to be done.



What's wrong ??

[daprodigy]

hello

the syntax is wrong ...

class c2 extends c1 implements i2

... then, i can compile the code.

hope this helps

[ajaygargnsit]

Yeah, i did the change; it works.

Thanks again.