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- package com.company;
- import java.util.Scanner;
- public class Main {
- static class Triangle {
- private double a, h, S;
- void setA(double a) {
- this.a = a;
- }
- void setH(double h) {
- this.h = h;
- }
- void getS() {
- System.out.println(S = ((a * h) / 2.0));
- }
- }
- static class Circle {
- private double r, length;
- void setRadius(double r) {
- this.r = r;
- }
- void getCircleLength() {
- System.out.println(length = 2 * Math.PI * r);
- }
- }
- public static void main(String[] args) {
- // 1
- System.out.print("Введите число: ");
- Scanner in = new Scanner(System.in);
- String number;
- for (; true; ) {
- number = in.next();
- if (number.length() == 6) {
- System.out.println("\nРезультат:");
- for (int i = 0; i < number.length(); i++) {
- System.out.println(number.charAt(i));
- }
- break;
- }
- }
- // 2
- Scanner in = new Scanner(System.in);
- Triangle triangle = new Triangle();
- System.out.print("Введите длину основания треугольника: ");
- triangle.setA(in.nextDouble());
- System.out.print("Введите высоту треугольника: ");
- triangle.setH(in.nextDouble());
- System.out.print("Площадь треугольника: ");
- triangle.getS();
- // 3
- Scanner in = new Scanner(System.in);
- Circle circle = new Circle();
- System.out.print("Введите радиус круга: ");
- circle.setRadius(in.nextDouble());
- circle.getCircleLength();
- }
- }
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