Simple program, but "invalid method dec" at "displayObject(newTriangle)"

Question

Little help would be appreciated. Hopefully a quickie for some of you pros out there. Won't complile as per subject. Just want to view my object. thanks, djason
// For extending the GeometricObject class.
public class Triangle extends GeometricObject{
     private double s1, s2, s3;
     GeometricObject newTriangle=new Triangle(2,3,4);
     displayObject(newTriangle);
     //System.out.println(newTriangle.toString());
     //System.out.println("& " +newTriangle.findArea());
     //Constructor
     public Triangle(double s1, double s2, double s3){
          this.s1=s1;
          this.s2=s2;
          this.s3=s3;
     //Use abstract method findArea from GeometricObject.class
     public double findArea(){
          double s=((s1+s2+s3)/2);
          double b=((s-s1)*(s-s2)*(s-s3));
          double a=Math.sqrt(s*b);
          return a;
     public double findPerimeter(){
          return (s1+s2+s3);          
     static void displayObject(GeometricObject object){
          System.out.println();
          System.out.println(object.toString());          
          System.out.println(object.findArea());
          System.out.println(object.findPerimeter());
}

Answer 1

Sorry- tried to update the "code" ugliness, but too late. This should be more appealing to the eye. Thanks, djason
// For extending the GeometricObject class.
public class Triangle extends GeometricObject{
     private double s1, s2, s3;
     GeometricObject newTriangle=new Triangle(2,3,4);
     displayObject(newTriangle);
     //System.out.println(newTriangle.toString());
     //System.out.println("& " +newTriangle.findArea());
     //Constructor
     public Triangle(double s1, double s2, double s3){
          this.s1=s1;
          this.s2=s2;
          this.s3=s3;
     //Use abstract method findArea from GeometricObject.class
     public double findArea(){
          double s=((s1+s2+s3)/2);
          double b=((s-s1)*(s-s2)*(s-s3));
          double a=Math.sqrt(s*b);
          return a;
     public double findPerimeter(){
          return (s1+s2+s3);          
     static void displayObject(GeometricObject object){
          System.out.println();
          System.out.println(object.toString());          
          System.out.println(object.findArea());
          System.out.println(object.findPerimeter());
}