Unity how to handle input code example

Example 1: how to use input field unity

public string theName;
    public GameObject inputField;
    public GameObject textDisplay;
    
    public void StoreName()
    {
        theName = inputField.GetComponent<Text>().text;
        textDisplay.GetComponent<Text>().text = theName;
    }

Example 2: unity how to get input

using UnityEngine;
using System.Collections;public class ExampleClass : MonoBehaviour
{
    public void Update()
    {
        if (Input.GetButtonDown("Fire1"))
        {
            Debug.Log(Input.mousePosition);
        }
    }
}