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diff between abstract methods and interfaces with programing
(code) example?

Answer Posted / karthik

abstract class A
{
protected abstract void show();
}

public class xx extends A
{
protected void show()
{
System.out.println("karthik ok");

}

static void main(String aa[])
{
xx ob=new xx();
ob.show();
}
}


But in Interface


interface A
{
protected abstract void show();
}



public class xx implements A
{
protected void show()
{
System.out.println("karthik ok");

}

static void main(String aa[])
{
xx ob=new xx();
ob.show();
}
}

modifier protected not allowed here
protected abstract void show(); in Interface
Because Default public method


But in Abstract class we can have protected


interface A
{
int x;//Error we should need initial value
}

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