### Question:
Interpolation { public float[][] crop(float top, float right, float bottom, float left) { return Arrays2D.copyOfRange(input, (int) top, (int) Math.ceil(right), (int) Math.ceil(bottom), (int) left); } Interpolation(float[][] input);  Interpolation(float[][] input, int lenX, int lenY);  Interpolation(float[][] input, int lenX, int lenY, int samples); protected  Interpolation(); static Interpolation getInstance(Type type, float[][] input); abstract float interpolateSampleX(float[] samples, float fracX); float interpolateX(float[] arr, float fracX, int offsetX); float interpolateSampleY(float[] samples, float fracY); float interpolateY(float[] arr, float fracY, int offsetY); float interpolateSample(float[][] samples, float fracX, float fracY); float interpolate(float[][] arr, float fracX, float fracY, int offsetX, int offsetY); float interpolate(float[][] arr, float inputX, float inputY); static float getSigFig(float value); float[][] resize(int lenX, int lenY); float[][] crop(float top, float right, float bottom, float left); float[][] cropAndResize(int lenX, int lenY,
            float minX, float minY, float maxX, float maxY);  }### Answer:
@Test public void testCrop() { float top = 1.0F; float right = 4.0F; float bottom = 3.5F; float left = 1.5F; float[][] expResult = { {1.00f, 2.00f, 2.00f,}, {4.00f, 5.00f, 5.00f,}, {4.00f, 5.00f, 5.00f,} }; float[][] result = instance.crop(top, right, bottom, left); assertArray2dEquals(expResult, result, 0.0001f); }