Main.java - master - ZIKFOX/JOB7reformatcode

Main.java
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ZIKFOX
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18 дек 2025, 11:37
18 дек 2025, 11:37a23a09f
import java.util.Random;
import java.util.Scanner;

public class Main {
    public static final int SIZE = 8;


    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int[][] colors = generateMatrix();

        System.out.println("\nДана следующая матрица:\n");
        printMatrix(colors);

        System.out.println("\nВыберите угол поворота: 90, 180, 270: ");
        int angle = scanner.nextInt();


        int[][] rotated = rotateMatrix(colors, angle);

        System.out.printf("\nПовернутая на %d° матрица:%n\n", angle);

        printMatrix(rotated);
        scanner.close();
    }

    private static int[][] generateMatrix() {
        int[][] matrix = new int[SIZE][SIZE];
        Random random = new Random();
        for (int i = 0; i < SIZE; i++) {
            for (int j = 0; j < SIZE; j++) {
                matrix[i][j] = random.nextInt(256);

            }
        }
        return matrix;
    }

    private static void printMatrix(int[][] matrix) {
        for (int i = 0; i < SIZE; i++) {
            for (int j = 0; j < SIZE; j++) {
                System.out.format("%4d", matrix[i][j]);
            }
            System.out.println();
        }
    }

    private static int[][] rotateMatrix(int[][] matrix, int angle) {
        int[][] result = new int[SIZE][SIZE];

        switch (angle) {
            case 90:
                rotate90(matrix, result);
                break;
            case 180:
                rotate180(matrix, result);
                break;
            case 270:
                rotate270(matrix, result);
                break;
        }
        return result;
    }

    private static void rotate90(int[][] src, int[][] dst) {
        for (int i = 0; i < SIZE; i++) {
            for (int j = 0; j < SIZE; j++) {
                dst[j][SIZE - 1 - i] = src[i][j];
            }
        }
    }

    private static void rotate180(int[][] src, int[][] dst) {
        for (int i = 0; i < SIZE; i++) {
            for (int j = 0; j < SIZE; j++) {
                dst[SIZE - 1 - i][SIZE - 1 - j] = src[i][j];
            }
        }
    }

    private static void rotate270(int[][] src, int[][] dst) {
        for (int i = 0; i < SIZE; i++) {
            for (int j = 0; j < SIZE; j++) {
                dst[SIZE - 1 - j][i] = src[i][j];
            }
        }
    }
}