C#•2y ago

✅ variables declared with/without the “new” keyword.

What difference does using the word new make in the code? even in terms of memory allocations n stuff. also in this code how many TrialObjects objects were created?

TrialObjects testObj1 = new TrialObjects("some string argument1");
TrialObjects testObj2 = new TrialObjects("some string argument2");
TrialObjects testObj3 = testObj1;

TrialObjects testObj1 = new TrialObjects("some string argument1");
TrialObjects testObj2 = new TrialObjects("some string argument2");
TrialObjects testObj3 = testObj1;

13 Replies

Thinker•2y ago

two objects are created here In general, new means a new object is created. The variables here aren't declared with the new keyword, they're just assigned a new object.

SolwayFirthOP•2y ago

and does this have to do anything with stack/heap

sibber•2y ago

if the thing youre newing is a reference type, itll be allocated on the heap otherwise its on the stack

SolwayFirthOP•2y ago

so in this example, would the testObject1 be on the stack?

sibber•2y ago

if its a reference type classes are reference types

Thinker•2y ago

reference type (class, interface, delegate) -> heap value type (struct) -> stack

SolwayFirthOP•2y ago

noted cheers

qqdev•2y ago

Often times but not always yep. Even structs can land on the heap

sibber•2y ago

wdym not always? when does newing a struct allocate it on the heap

qqdev•2y ago

This is a good read

qqdev•2y ago

https://stackoverflow.com/a/4853251

Stack Overflow

Are Structs always stack allocated or sometimes heap allocated?

I was of the impression that in C#, struct elements are allocated on the stack and thus disappear when returning from a method in which they were created. But what happens if I place the struct-val...

sibber•2y ago

oh when theyre a member of a class yeah of course or an array i was thinking in the context of a function $close

MODiX•2y ago

Use the /close command to mark a forum thread as answered

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✅ variables declared with/without the “new” keyword.