GUi button isnt showing up

Questions & Answers
1

here is my code but the gui button doesnt show up at all . Can anyone tell me what im doing wrong please. any help is appreciated

using UnityEngine;
using System.Collections;

public class JumpButton : MonoBehaviour {

public bool jump = false;                   
public float jumpForce = 1000f;            
private bool grounded = false;          
 
void OnGUI () 
{
 
 
    if(GUI.Button(new Rect(400,400,80,20), "Jump")) 
    {
        if((grounded == true))                      
        {
            jump = true;
            grounded = false;
        }
 
    }
 
}
 
 
void FixedUpdate ()
{
 
    if(jump == true)
    {
 
        rigidbody2D.AddForce(new Vector2(0f, jumpForce));
 
        jump = false;
    }
 
}

}
2

Make sure your script is attached to a gameObject in the scene.