I know my problem in this code is the way I'm trying too crate this background starfield it work fine when it was just functions and not in a class but now that I'm trying to make it a class getting all sort of issues
would greatly appreciate if somebody can send me on the right track to correct this.

1. //Global Varibles
   Enemy myEnemy; //Enemey object Oriented varible
   Player myPlayer; //Player Object Oriented varible
   starField mystarField;
   
   //--Global Variable end--
   
   void setup(){ //basic setup for enemy 3 test
     size(1000,680); //skect size
     smooth(); //does something i forgot
     myEnemy = new Enemy();
     myPlayer = new Player();
     mystarField = new starField();
   }
   
   void draw(){ //our main program
     background(0);
     mystarField.drawstarfield();
     myEnemy.drawEnemy();
     myEnemy.moveEnemy();
     myEnemy.wallCheck();
     myPlayer.drawPlayer();
     myPlayer.keyPressed();
   }
   class Enemy{
     PImage Enemy_1;
     PImage Enemy_2;
     PImage Enemy_3;
     PImage Enemy_4;
     PImage Enemy_5;
     PImage Enemy_6;
     PImage Enemy_7;
     PImage Enemy_8;
     PImage Enemy_9;
     PImage Enemy_10;
     PImage Enemy_11;
     PImage Enemy_12;
     PImage Enemy_13;
     float enemyX;
     float enemyY;
     float speed;
   
     Enemy() {
       Enemy_1 = loadImage("Enemy_1.png");
       enemyX = 0;
       enemyY = 0;
       speed = 20;
     }
     void drawEnemy(){
       image(Enemy_1,enemyX,enemyY);
     }
     void moveEnemy(){
       // Change the x location by speed
       enemyX = enemyX + speed;
     }
     void wallCheck(){
       if ((enemyX > width - 150) || (enemyX < 0)){
     speed = speed * -1;
    }
   }
   }
   class Player{//Player Class with all the information for the player
      float playerX; //x postion of player
      float playerY; //y postion of player
      float pspeed; //players speed
      PImage Player_1; // space-ship-cointainer
     
      Player(){
      Player_1 = loadImage("Player_1.png");
      playerX = 500;
      playerY = 600;
      pspeed = 5;
      }
       void drawPlayer(){
       image(Player_1,playerX,playerY);
     }
       void keyPressed(){
        if (key == CODED) {
        if (keyCode == RIGHT) {
        playerX = playerX + pspeed;
      }
        if (playerX > width - 50){
        playerX = width - 50;
       }
        if (keyCode == LEFT) {
        playerX = playerX - pspeed;
   }
        if (playerX < 0){
        playerX = 0;
        }
      }
    }
   }
    class starField{
      //stars field to make it more like a space game
      float y = 50; //vertical location of each star
      float x = 10; //intial horizontal location of the first line
      float y1 = 50; //vertical location of each star
      float x1 = 50; //intial horizontal location of the first line
      float Cid = 5; //width of the ellipse
      float spacing = 45; //How far apart is each star
      float spacing1 = 10; //How far apart is each star
      float dia = 5; //height of each star
      float endStars = 985;
      float r;
      float g;
      float b;
      float a;
     
      starField(){
      float y = 50; //vertical location of each star
      float x = 10; //intial horizontal location of the first line
      float y1 = 50; //vertical location of each star
      float x1 = 50; //intial horizontal location of the first line
      float Cid = 5; //width of the ellipse
      float spacing = 45; //How far apart is each star
      float spacing1 = 10; //How far apart is each star
      float dia = 5; //height of each star
      }
       void displaystarfield(){  
        starField(10,15,1,1);
        starField(30,40,2,2);
        starField(10,80,1,1);
        starField(30,120,2,2);
        starField(10,160,1,1);
        starField(30,210,2,2);
        starField(10,280,1,1);
        starField(30,350,2,2);
        starField(10,420,1,1);
        starField(30,470,2,2);
        starField(10,520,1,1);
        starField(30,590,2,2);
        starField(10,640,1,1);
   }
   
    void drawstarfield(float x, float y,float cid,float dia){
      noStroke();
      r = random(255);
      g = random(255);
      b = random(255);
      a = random(255);
    while (x <= endStars){
      fill(r,g,b,a);
      ellipse(x,y,Cid,dia);
      x = x + spacing;
    }
    }
    }