Junit test provided, won't take you more than 15 mins. Be sure you can pass the...
Junit test provided, won't take you more than 15 mins.
Be sure you can pass the test.
---------------------------------------------------------
For this problem you will need to write the Square superclass and 2 subclasses of Square. The name of each of the classes you will write and the work they must do is as follows:
Square
Define an instance-based field of type double named length. Make certain the field has proper access protections. You should also define a getter & setter for this field.
Define a constructor which has a single double parameter: use the value of that parameter to set the initial value of length.
Define the method public double getArea() method so that it returns the area of the instance (e.g., length *length).
Cube
This must be a subclass of Square.
Define a constructor which has a single double parameter: use the value of that parameter to set the initial value of length (remember that Cube is-a Square).
Define a method public double getVolume() so that it returns the volume of the instance (e.g., length *length * length).
If any work is required (and this may or may not be required), make sure the getter and setter for lengthare usable.
Box
This must be a subclass of Square .
Define a field of type double named height. Make certain the field has proper access protections. You should also define a getter & setter for this field.
Define a constructor which has two double parameters: use the first parameter to set the length of the basic Square and the second parameter to set the instance's height.
The area of a box would depend on the cross-section examined. Update it's getArea() method so that it returns Double.NaN.
Define the method public double getVolume() so that it returns the volume of the instance (e.g., length *length * height).
If any work is required (and this may or may not be required), make sure the getter and setter for lengthare usable.
-------------------------------------------------
Junit test
package edu.buffalo.cse116;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
/**
* @author Matthew Hertz
*/
public class GeometryTest {
@Test
public void testSquareGetArea() {
Square square = new Square(3);
Square notCircle = new Square(14.0);
Square regular = new Square(0.5);
assertEquals("Did not construct or getArea correctly", 9,
square.getArea(), 0.0);
assertEquals("Did not construct or getArea correctly", 196,
notCircle.getArea(), 0.0);
assertEquals("Did not construct or getArea correctly", 0.25,
regular.getArea(), 0.0);
square.setLength(5);
assertEquals("Did not setLength or getArea correctly", 25,
square.getArea(), 0.0);
}
@Test
public void testSquareGetLength() {
Square square = new Square(1);
assertEquals("Did not construct or getLength correctly", 1.0,
square.getLength(), 0.0);
Square notSquare = new Square(10.0);
assertEquals("Did not construct or getLength correctly", 10.0,
notSquare.getLength(), 0.0);
}
@Test
public void testSquareSetLength() {
Square circ = new Square(1);
Square notSquare = new Square(10.0);
circ.setLength(34);
assertEquals("Did not set or getLength correctly", 34.0,
circ.getLength(), 0.0);
notSquare.setLength(0.00001);
assertEquals("Did not set or getLength correctly", 0.00001,
notSquare.getLength(), 0.0);
}
@Test
public void testCubeGetArea() {
Cube cube = new Cube(3);
Square notSquare = new Cube(-14.0);
assertEquals("Did not construct or getArea correctly", 3 * 3,
cube.getArea(), 0.0);
assertEquals("Did not construct or getArea correctly", -14 * -14,
notSquare.getArea(), 0.0);
}
@Test
public void testCubeGetLength() {
Cube cube = new Cube(7);
assertEquals("Did not construct or getLength correctly", 7.0,
cube.getLength(), 0.0);
Cube notSquare = new Cube(0.1);
assertEquals("Did not construct or getLength correctly", 0.1,
notSquare.getLength(), 0.0);
}
@Test
public void testCubeGetVolume() {
Cube square = new Cube(3);
Square notSquare = new Cube(23.0);
assertEquals("Did not construct or getVolume correctly", 3 * 3 * 3,
square.getVolume(), 0.0);
assertEquals("Did not construct or getVolume correctly", 23 * 23 *
23, ((Cube)notSquare).getVolume(), 0.0);
notSquare.setLength(0.02);
assertEquals("Did not setLength or getVolume correctly", 0.02 *
0.02 * 0.02, ((Cube)notSquare).getVolume(), 0.0);
}
@Test
public void testCubeSetLength() {
Square square = new Cube(1);
Cube notSquare = new Cube(10.0);
notSquare.setLength(17);
assertEquals("Did not set or getLength correctly", 17.0,
notSquare.getLength(), 0.0);
square.setLength(10000);
assertEquals("Did not set or getLength correctly", 10000,
square.getLength(), 0.0);
}
@Test
public void testBoxGetArea() {
Box square = new Box(6, 10);
Square notSquare = new Box(15.0, 32);
assertEquals("Did not construct or getArea correctly", Double.NaN,
square.getArea(), 0.0);
assertEquals("Did not construct or getArea correctly", Double.NaN,
notSquare.getArea(), 0.0);
}
@Test
public void testBoxGetLength() {
Square square = new Box(7, 0.01);
assertEquals("Did not construct or getLength correctly", 7.0,
square.getLength(), 0.0);
Box notSquare = new Box(0.1, -8);
assertEquals("Did not construct or getLength correctly", 0.1,
notSquare.getLength(), 0.0);
}
@Test
public void testBoxGetVolume() {
Box square = new Box(3, 89);
Square notSquare = new Box(23.0, 0.1);
assertEquals("Did not construct or getVolume correctly", 9 * 89,
square.getVolume(), 0.0);
assertEquals("Did not construct or getVolume correctly", 23 * 23 *
0.1, ((Box)notSquare).getVolume(), 0.0);
notSquare.setLength(0.02);
assertEquals("Did not setLength or getVolume correctly", 0.0004 *
0.1, ((Box)notSquare).getVolume(), 0.0);
square.setHeight(1);
assertEquals("Did not setHeight or getVolume correctly", 9,
square.getVolume(), 0.0);
}
@Test
public void testBoxSetLength() {
Square square = new Box(1, 0.1);
Box notSquare = new Box(10.0, 0.2);
notSquare.setLength(17);
assertEquals("Did not set or getLength correctly", 17.0,
notSquare.getLength(), 0.0);
square.setLength(10000);
assertEquals("Did not set or getLength correctly", 10000,
square.getLength(), 0.0);
}
@Test
public void testBoxSetHeight() {
Square square = new Box(1, 0.1);
Box notSquare = new Box(10.0, 0.2);
notSquare.setHeight(17);
assertEquals("Did not set or getLength correctly", 17.0,
notSquare.getHeight(), 0.0);
((Box)square).setHeight(10000);
assertEquals("Did not set or getLength correctly", 10000,
((Box)square).getHeight(), 0.0);
}
}
Homework Answers
package edu.buffalo.cse116;
public class Square {
private double length;
/**
* @param length
*/
public Square(double length) {
this.length = length;
}
/**
* @return the length
*/
public double getLength() {
return length;
}
/**
* @param length
* the length to set
*/
public void setLength(double length) {
this.length = length;
}
public double getArea() {
return getLength() * getLength();
}
}
package edu.buffalo.cse116;
public class Cube extends Square {
/**
* @param length
*/
public Cube(double length) {
super(length);
// TODO Auto-generated constructor stub
}
public double getVolume() {
return getLength() * getLength() * getLength();
}
}
package edu.buffalo.cse116;
public class Box extends Square {
private double height;
public Box(double length, double height) {
super(length);
// TODO Auto-generated constructor stub
this.height = height;
}
/**
* @return the height
*/
public double getHeight() {
return height;
}
/**
* @param height
* the height to set
*/
public void setHeight(double height) {
this.height = height;
}
@Override
public double getArea() {
// TODO Auto-generated method stub
return Double.NaN;
}
public double getVolume() {
return getLength() * getLength() * getHeight();
}
}
package edu.buffalo.cse116;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
/**
* @author Matthew Hertz
*/
public class GeometryTest {
@Test
public void testSquareGetArea() {
Square square = new Square(3);
Square notCircle = new Square(14.0);
Square regular = new Square(0.5);
assertEquals("Did not construct or getArea correctly", 9,
square.getArea(), 0.0);
assertEquals("Did not construct or getArea correctly", 196,
notCircle.getArea(), 0.0);
assertEquals("Did not construct or getArea correctly", 0.25,
regular.getArea(), 0.0);
square.setLength(5);
assertEquals("Did not setLength or getArea correctly", 25,
square.getArea(), 0.0);
}
@Test
public void testSquareGetLength() {
Square square = new Square(1);
assertEquals("Did not construct or getLength correctly", 1.0,
square.getLength(), 0.0);
Square notSquare = new Square(10.0);
assertEquals("Did not construct or getLength correctly", 10.0,
notSquare.getLength(), 0.0);
}
@Test
public void testSquareSetLength() {
Square circ = new Square(1);
Square notSquare = new Square(10.0);
circ.setLength(34);
assertEquals("Did not set or getLength correctly", 34.0,
circ.getLength(), 0.0);
notSquare.setLength(0.00001);
assertEquals("Did not set or getLength correctly", 0.00001,
notSquare.getLength(), 0.0);
}
@Test
public void testCubeGetArea() {
Cube cube = new Cube(3);
Square notSquare = new Cube(-14.0);
assertEquals("Did not construct or getArea correctly", 3 * 3,
cube.getArea(), 0.0);
assertEquals("Did not construct or getArea correctly", -14 * -14,
notSquare.getArea(), 0.0);
}
@Test
public void testCubeGetLength() {
Cube cube = new Cube(7);
assertEquals("Did not construct or getLength correctly", 7.0,
cube.getLength(), 0.0);
Cube notSquare = new Cube(0.1);
assertEquals("Did not construct or getLength correctly", 0.1,
notSquare.getLength(), 0.0);
}
@Test
public void testCubeGetVolume() {
Cube square = new Cube(3);
Square notSquare = new Cube(23.0);
assertEquals("Did not construct or getVolume correctly", 3 * 3 * 3,
square.getVolume(), 0.0);
assertEquals("Did not construct or getVolume correctly", 23 * 23 * 23,
((Cube) notSquare).getVolume(), 0.0);
notSquare.setLength(0.02);
assertEquals("Did not setLength or getVolume correctly",
0.02 * 0.02 * 0.02, ((Cube) notSquare).getVolume(), 0.0);
}
@Test
public void testCubeSetLength() {
Square square = new Cube(1);
Cube notSquare = new Cube(10.0);
notSquare.setLength(17);
assertEquals("Did not set or getLength correctly", 17.0,
notSquare.getLength(), 0.0);
square.setLength(10000);
assertEquals("Did not set or getLength correctly", 10000,
square.getLength(), 0.0);
}
@Test
public void testBoxGetArea() {
Box square = new Box(6, 10);
Square notSquare = new Box(15.0, 32);
assertEquals("Did not construct or getArea correctly", Double.NaN,
square.getArea(), 0.0);
assertEquals("Did not construct or getArea correctly", Double.NaN,
notSquare.getArea(), 0.0);
}
@Test
public void testBoxGetLength() {
Square square = new Box(7, 0.01);
assertEquals("Did not construct or getLength correctly", 7.0,
square.getLength(), 0.0);
Box notSquare = new Box(0.1, -8);
assertEquals("Did not construct or getLength correctly", 0.1,
notSquare.getLength(), 0.0);
}
@Test
public void testBoxGetVolume() {
Box square = new Box(3, 89);
Square notSquare = new Box(23.0, 0.1);
assertEquals("Did not construct or getVolume correctly", 9 * 89,
square.getVolume(), 0.0);
assertEquals("Did not construct or getVolume correctly", 23 * 23 * 0.1,
((Box) notSquare).getVolume(), 0.0);
notSquare.setLength(0.02);
assertEquals("Did not setLength or getVolume correctly", 0.0004 * 0.1,
((Box) notSquare).getVolume(), 0.0);
square.setHeight(1);
assertEquals("Did not setHeight or getVolume correctly", 9,
square.getVolume(), 0.0);
}
@Test
public void testBoxSetLength() {
Square square = new Box(1, 0.1);
Box notSquare = new Box(10.0, 0.2);
notSquare.setLength(17);
assertEquals("Did not set or getLength correctly", 17.0,
notSquare.getLength(), 0.0);
square.setLength(10000);
assertEquals("Did not set or getLength correctly", 10000,
square.getLength(), 0.0);
}
@Test
public void testBoxSetHeight() {
Square square = new Box(1, 0.1);
Box notSquare = new Box(10.0, 0.2);
notSquare.setHeight(17);
assertEquals("Did not set or getLength correctly", 17.0,
notSquare.getHeight(), 0.0);
((Box) square).setHeight(10000);
assertEquals("Did not set or getLength correctly", 10000,
((Box) square).getHeight(), 0.0);
}
}
OUTPUT:
![กู้เ JUnit Finished after 0.031 seconds Runs: 12/12 Errors: 0 Failures: 0 eubuffalo.csel16.GeometryTest [Runner. JUnit 4] (0.](http://img.homeworklib.com/questions/fde11b20-22cd-11eb-a6d5-5730c6b4e07b.png?x-oss-process=image/resize,w_560)
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