java中的二维数组传递

类文件：我使用2dint数组存储值，然后设置setter和getter

public class SquareMatrix implements SquareMatrixInterface{
    int[][] squareMatrix; 

    public int[][] getSquareMatrix() {
        return squareMatrix;
    }

    public void setSquareMatrix(int[][] squareMatrix) {
        this.squareMatrix = squareMatrix;
    }
}

接口文件

public interface SquareMatrixInterface {
    public int[][] getSquareMatrix();
    public void setSquareMatrix(int[][] squareMatrix);
}

Main：我输入了一个值并尝试将该值设置为setter，但它给了我错误

public class test {

    SquareMatrixInterface matrixA = new SquareMatrix();
    SquareMatrixInterface matrixB = new SquareMatrix();

    public static void main(String[] args) {
        int[][] m1 = {{1,2},{3,4}};
        matrixA.setSquareMatrix(m1);

    }
}

为什么在我尝试将数组传递给setter时会出现错误

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如何在不包含java库的情况下传递2d数组

您无法访问静态块中的非静态属性。。[无法对非静态字段进行静态引用]，因此需要将主方法重写为

    public static void main(String[] args) {
        SquareMatrixInterface matrixA = new SquareMatrix();
        int[][] m1 = {{1, 2}, {3, 4}};
        matrixA.setSquareMatrix(m1);
    }

或

static SquareMatrixInterface matrixA = new SquareMatrix();

public static void main(String[] args) {
    int[][] m1 = {{1, 2}, {3, 4}};
    matrixA.setSquareMatrix(m1);
}

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您已经有了正确的答案（关于静态与非静态），但下次请告诉我们确切的错误消息和stacktrace。您可以包括堆栈跟踪吗