@@ -0,0 +1,727 @@
+package ru.pravvich;%0A%0Apublic class Square %7B%0A%0A    private float a;%0A    private float b;%0A    private float c;%0A%0A    private float resultShow;%0A%0A    public float getResultShow() %7B%0A        return resultShow;%0A    %7D%0A%0A%0A    public Square(float a, float b, float c) %7B%0A        this.a = a;%0A        this.b = b;%0A        this.c = c;%0A    %7D%0A%0A    float calculate(float x) %7B%0A        float y;%0A        y = a * x + b * x + c;%0A        return y;%0A    %7D%0A%0A    void show(float start, float finish, float step) %7B%0A        for (float x = start; x %3E= start && x %3C= finish; x += step) %7B%0A            float result;%0A            result = calculate(x);%0A            this.resultShow = result;%0A            System.out.print(this.resultShow + %22 %22);%0A        %7D//for%0A    %7D%0A%7D

add structure