protected class Demo{
      private int x = 0;
      private Demo (int xval){
         x=xval;
      }
   }

public class demo{
       public int x = 0;
       public demo (int x){
          this.x=x;
       }
   }

public class Demo extends MyBaseClass, MyOtherBaseClass{
     public int x = 0;
         public Demo(int xval){
         x=xval;
     }
  }

public class Demo{
       public int x = 0;
       public Demo (int x){
           this.x=x;
       }
    }