is there way of using try-with-resources when opening inputstream in constructor , passing super constructor?
basically want this:
public class { public a(inputstream stream) { // stream don't close since didn't open } } public class b { public b(file file) { // open stream need ensure it's closed try (fileinputstream stream = new fileinputstream(file)) { super(new fileinputstream(file)); } } } but, of course, since super must first statement in constructor isn't allowed. there way of achieving this?
consider using static factory method instead of using constructor directly. make @ least b's constructor private, , create method such as
private b(inputstream is) { super(is); // whatever else needed } public static b newinstance(file file) { b result; try (fileinputstream stream = new fileinputstream(file)) { result = new b(stream); } // further processing return result; } 