How instantiate object in the specific time?

Hi, does anyone here know how to instantiate a gameobject at a certain time?
for the example I have 2 object (Object A and Object B), I want to instantiate Object A at the 5 second, and I want to instantiate Object B at the 10 second in the position of Object A and destroy or disable Object A.

 

Hey, there are tons of ways todo that,
one example would be:

Code (CSharp):

1. private float timer = 5;
2. private GameObject tempPrefab;
3.  
4. void Start() {
5. StartCoroutine(testEnumerator(timer));
6. }
7.  
8. private IEnumerator testEnumerator(float delay) {
9.  
10. while(true) {
11.   if(tempPrefab) {
12.       Destroy(tempPrefab);
13.   }
14.   tempPrefab = Instantiate(tempPrefab, position, rotation);
15.   yield return new WaitForSeconds(delay);
16. }
17. }

i codet that in the browser, expect a typo or something ,
also i recommend to edit the Code and make it more flexible as it is only one example on how archieve what you described

 

Thank you for your advice, but how if I want to Instantiate two objects in turn? For example I have 3object, The first object is the object that I gave the script, then at the 5th second I want to instantiate the second object and deactivate the first object, and on the 10th second I want to instantiate the 3rd object and deactivate or destroy the first and second objects?
I'm new in c# script, and If you know how to do that, I really appreciate that