import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入一个数字X:");
        double x = scanner.nextDouble();
        double[][] matrix = constructMatrix(x);
        System.out.println("构造的三阶行列式为：");
        printMatrix(matrix);
    }

    public static double[][] constructMatrix(double x) {
        double[][] matrix = new double[3][3];
        matrix[0][0] = x;
        matrix[1][1] = x;
        matrix[2][2] = x * (1 - x);
        return matrix;
    }

    public static void printMatrix(double[][] matrix) {
        for (int i = 0; i < matrix.length; i++) {
            for (int j = 0; j < matrix[i].length; j++) {
                System.out.print(matrix[i][j] + "\t");
            }
            System.out.println();
        }
    }
}