need help with moving objects

[pwnagebeef]

well i've been assigned to make a simple java game but im already having trouble .. i need to get something to move across the screen. I'm trying to get a rectangle to go across the top portion of the application. ofc I've youtubed and everything but i still get this smudge across the top of the screen when i do the fillRet ; when i do drawRect i get a bunch of lines spaced across. In case your curious of what im trying to make, i will be attempting to make a game sorta like fruit ninja. Much much simpler of course. Currently i just need to get an object to move :L Once i do that ill add pictures mouse stuff etc..Here's the code.

package gameapplication;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import javax.swing.*;
import java.awt.event.ActionListener;
import javax.swing.Timer;



@Sup
pressWarnings("serial")
public class gameapp1 extends JFrame implements ActionListener{
Timer tm = new Timer(5,this);
int x =0, velX=2;

    public gameapp1 (){
        setSize(800,850);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setResizable(true);        
        setVisible(true);
        
        
          }
    
    public void paint(Graphics g){
       
       
    g.setColor(Color.RED);
    g.drawRect(x, 57, 90, 30);
    
    tm.start();
    
    }
    
    public void actionPerformed(ActionEvent e){
    x = x + velX;
    repaint();}
public static void main(String[] args) {
    gameapp1 gm = new gameapp1();
    
    
}}

[pwnagebeef]

nvm i solved it