how to load a new scene unity code example

Example 1: unity load scene

using UnityEngine.SceneManagement;

int buildIndex = 0;
//Load the scene with a build index
SceneManager.LoadScene(buildIndex);

Example 2: load scene unity

using UnityEngine.SceneManagement


public class LoadScene : MonoBehavior
{
	public string sceneToLoad = "Level2";
    
    public void Start()
    {
    	SceneManager.LoadScene(sceneToLoad);
    }
}

Example 3: change scene unity

SceneManager.LoadScene (sceneBuildIndex:/*Put the number here*/);