MatrixRotation.java - master - Yuretz78/MatrixRotation

MatrixRotation.java
62 строки2 KB
Yuretz78
create: MatrixRotation.java
01 май 2026, 12:43
01 май 2026, 12:4337e15c2
import java.util.Random;
import java.util.Scanner;

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

    public static void main(String[] args) {
        int[][] matrix = generateMatrix();
        System.out.println("Исходная матрица:");
        printMatrix(matrix);

        int[][] rotated90 = rotate90(matrix);
        System.out.println("\nМатрица после поворота на 90 градусов:");
        printMatrix(rotated90);

        Scanner scanner = new Scanner(System.in);
        System.out.print("\nВведите угол поворота (90, 180 или 270): ");
        int angle = scanner.nextInt();
        int[][] rotated = rotateMatrix(matrix, angle);
        System.out.println("\nМатрица после поворота на " + angle + " градусов:");
        printMatrix(rotated);
    }

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

    public 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();
        }
    }

    public static int[][] rotate90(int[][] matrix) {
        int[][] rotated = new int[SIZE][SIZE];
        for (int i = 0; i < SIZE; i++) {
            for (int j = 0; j < SIZE; j++) {
                rotated[j][SIZE - 1 - i] = matrix[i][j];
            }
        }
        return rotated;
    }

    public static int[][] rotateMatrix(int[][] matrix, int angle) {
        int[][] result = matrix;
        int rotations = angle / 90 % 4;
        for (int k = 0; k < rotations; k++) {
            result = rotate90(result);
        }
        return result;
    }
}