Version 1

public class QuadraticEquation {
  // a quadratic equation a*x^2 + b*x + c = 0
  
  double a;
  double b;
  double c;
  
  QuadraticEquation(double a1, double b1, double c1) {
    // create a new quadratic equation with the given coefficients
    a = a1;
    b = b1;
    c = c1;
  }
  
  void print() {
    // print the equation to the screen
    System.out.println(a + "*x^2 + "+ b + "*x + " + c);
  }
}

public class TestQuadraticEquation {
  // simple test program for QuadraticEquation

  public static void main (String[] args) {
    QuadraticEquation qe1 = new QuadraticEquation(2.0, 10.0, 12.0);
    qe1.print();
  }
}