@@ -0,0 +1,494 @@
+package ru.matevosyan.lesson_4_Loops;%0A%0Apublic class Square%7B%0A%0A%09private float a;%0A%09private float b;%0A%09private float c;%0A%09%0A%09public Square (float a, float b, float c) %7B%0A%09%09%0A%09this.a = a;%0A%09this.b = b;%0A%09this.c = c;%09%0A%09%09%0A%09%7D%0A%0A%09public  float calculate(int x) %7B%0A%09%0A%09%09return (float)(a*Math.pow(x,2)) + (b * x) + c;%0A%09%0A%09%7D%0A%0A%09public void show(int start, int finish, int step) %7B%0A%09%09%0A%09%09Square s = new Square(1f,2f,3f);%0A%0A%09%09while(start %3C finish) %7B%0A%0A%09%09%09System.out.println(s.calculate(start));%0A%09%09%09start += step;%0A%0A%09%09%7D%0A%0A%09%7D%0A%0A%7D

add Square.java