Java - static

class Exam_02_Sub
{
 private String name;
 private double don;
 private static float iyul;
 
 public static void setIyul(float iyul){
  Exam_02_Sub.iyul = iyul;
 }
 
 public Exam_02_Sub(String name, double don, float iyul) {
  this.name = name;
  this.don = don;
  Exam_02_Sub.iyul = iyul;
 }
 
 public void disp() {
  System.out.println("name : " +this.name);
  System.out.println("don : " +this.don);
  System.out.println("iyul : " + Exam_02_Sub.iyul);

 }
}

public class Exam_02 {
 public static void main(String[] ar) {
  Exam_02_Sub es = new Exam_02_Sub("A", 1000.0,0.07f);
  es.disp();
  System.out.println();
  Exam_02_Sub es1 = new Exam_02_Sub("B", 1000.0, 0.03f);
  es.disp();
  es1.disp();
  System.out.println();
  Exam_02_Sub es2 = new Exam_02_Sub("C", 1000.0, 0.05f);
  es.disp();
  es1.disp();
  es2.disp();
 
 }
}