Write a Java program for a class called MyPoint, which models a 2D point with x and y coordinates, is designed as shown in the class diagram. It contains: Two instance variables x (int) and y (int). A default (or "no-argument" or "no-arg") constructor that construct a point at the default location of (0, 0). A overloaded constructor that constructs a point with the given x and y coordinates. Getter and setter for the instance variables x and y. A method setXY() to set both x and y. A method getXY() which returns the x and y in a 2-element int array. A toString() method that returns a string description of the instance in the format "(x, y)". A method called distance(int x, int y) that returns the distance from this point to another point at the given (x, y) coordinates, e.g.,MyPoint p1 = new MyPoint(3, 4); System.out.println(p1.distance(5, 6)); An overloaded distance(MyPoint another) that returns the distance from this point to the given MyPoint instance (called another), e.g.,MyPoint p1 = new MyPoint(3, 4); MyPoint p2 = new MyPoint(5, 6); System.out.println(p1.distance(p2)); Another overloaded distance() method that returns the distance from this point to the origin (0,0), e.g.,MyPoint p1 = new MyPoint(3, 4); System.out.println(p1.distance()); You are required to: Write the code for the class MyPoint. Write unit-tests in Java class MyPointTest. // Test program to test all constructors and public methods MyPoint p1 = new MyPoint(); // Test constructor System.out.println(p1); // Test toString() p1.setX(8); // Test setters p1.setY(6); System.out.println("x is: " + p1.getX()); // Test getters System.out.println("y is: " + p1.getY()); p1.setXY(3, 0); // Test setXY() System.out.println(p1.getXY()[0]); // Test getXY() System.out.println(p1.getXY()[1]); System.out.println(p1); MyPoint p2 = new MyPoint(0, 4); // Test another constructor System.out.println(p2); // Testing the overloaded methods distance() System.out.println(p1.distance(p2)); // which version? System.out.println(p2.distance(p1)); // which version? System.out.println(p1.distance(5, 6)); // which version? System.out.println(p1.distance()); // which version?

Write a Java program for a class called MyPoint, which models a 2D point with x and y coordinates, is designed as shown in the class diagram. It contains: Two instance variables x (int) and y (int). A default (or "no-argument" or "no-arg") constructor that construct a point at the default location of (0, 0). A overloaded constructor that constructs a point with the given x and y coordinates. Getter and setter for the instance variables x and y. A method setXY() to set both x and y. A method getXY() which returns the x and y in a 2-element int array. A toString() method that returns a string description of the instance in the format "(x, y)". A method called distance(int x, int y) that returns the distance from this point to another point at the given (x, y) coordinates, e.g.,MyPoint p1 = new MyPoint(3, 4); System.out.println(p1.distance(5, 6)); An overloaded distance(MyPoint another) that returns the distance from this point to the given MyPoint instance (called another), e.g.,MyPoint p1 = new MyPoint(3, 4); MyPoint p2 = new MyPoint(5, 6); System.out.println(p1.distance(p2)); Another overloaded distance() method that returns the distance from this point to the origin (0,0), e.g.,MyPoint p1 = new MyPoint(3, 4); System.out.println(p1.distance()); You are required to: Write the code for the class MyPoint. Write unit-tests in Java class MyPointTest. // Test program to test all constructors and public methods MyPoint p1 = new MyPoint(); // Test constructor System.out.println(p1); // Test toString() p1.setX(8); // Test setters p1.setY(6); System.out.println("x is: " + p1.getX()); // Test getters System.out.println("y is: " + p1.getY()); p1.setXY(3, 0); // Test setXY() System.out.println(p1.getXY()[0]); // Test getXY() System.out.println(p1.getXY()[1]); System.out.println(p1); MyPoint p2 = new MyPoint(0, 4); // Test another constructor System.out.println(p2); // Testing the overloaded methods distance() System.out.println(p1.distance(p2)); // which version? System.out.println(p2.distance(p1)); // which version? System.out.println(p1.distance(5, 6)); // which version? System.out.println(p1.distance()); // which version?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Write a Java program for a class called MyPoint, which models a 2D point with x and y coordinates, is designed as shown in the class diagram.

It contains:

Two instance variables x (int) and y (int).
A default (or "no-argument" or "no-arg") constructor that construct a point at the default location of (0, 0).
A overloaded constructor that constructs a point with the given x and y coordinates.
Getter and setter for the instance variables x and y.
A method setXY() to set both x and y.
A method getXY() which returns the x and y in a 2-element int array.
A toString() method that returns a string description of the instance in the format "(x, y)".
A method called distance(int x, int y) that returns the distance from this point to another point at the given (x, y) coordinates, e.g.,MyPoint p1 = new MyPoint(3, 4); System.out.println(p1.distance(5, 6));
An overloaded distance(MyPoint another) that returns the distance from this point to the given MyPoint instance (called another), e.g.,MyPoint p1 = new MyPoint(3, 4); MyPoint p2 = new MyPoint(5, 6); System.out.println(p1.distance(p2));
Another overloaded distance() method that returns the distance from this point to the origin (0,0), e.g.,MyPoint p1 = new MyPoint(3, 4); System.out.println(p1.distance());

You are required to:

Write the code for the class MyPoint.
Write unit-tests in Java class MyPointTest.

// Test program to test all constructors and public methods

MyPoint p1 = new MyPoint(); // Test constructor

System.out.println(p1); // Test toString()

p1.setX(8); // Test setters

p1.setY(6);

System.out.println("x is: " + p1.getX()); // Test getters

System.out.println("y is: " + p1.getY());

p1.setXY(3, 0); // Test setXY()

System.out.println(p1.getXY()[0]); // Test getXY() System.out.println(p1.getXY()[1]);

System.out.println(p1);

MyPoint p2 = new MyPoint(0, 4); // Test another constructor System.out.println(p2); // Testing the overloaded methods distance() System.out.println(p1.distance(p2)); // which version? System.out.println(p2.distance(p1)); // which version? System.out.println(p1.distance(5, 6)); // which version? System.out.println(p1.distance()); // which version?

МyPoint
Return a 2-element int array of {x,y}.
-x:int = 0
-у:int
+МуРoint ()
|+MyPoint (x:int,y:int)
+getX():int
+setX(x:int): void
+getY():int
+setY(y:int): void
|+getXY():int[2]
+setXY(x:int,y:int):void
+toString():String
+distance(x:int,y:int):double
+distance(another:MyPoint):double
+distance(): double
"(х,у)"
Distance from this point to the given
point at (x,y).
Distance from this point to the given
instance of MyPoint.
Distance from this point to (0,0).

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