Answer Posted / pankaj kumar

Yes,If A class have an abstract method the class must be declared as abstract, but if a class is declared as abstract
then,this is not mandatory that class hold any abstract method.

exa :
1. public Abstract class a{

// instance method;
}
///Above declaration is right

2. public class a{

// instance method;
// abstract method; //then you must declare this class as abstract.
}
///Above declaration is right

we have syntax like for(int var : arrayName) this syntax is to find whether a number is in the array or not.but i want to know how to find that number's location.

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