PointOfInterest (Problem Set 1: Around the World)

java.lang.Object
- geo.PointOfInterest

```
public class PointOfInterest
extends Object
```
Immutable datatype representing a place with a name, description, and location.
PS1 instructions: do NOT change this class.

Constructor Summary

Constructors
Constructor	Description
`PointOfInterest(Angle latitude, Angle longitude, String name, String description)`	Make a new point of interest (POI).

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`description()`
`boolean`	`equals(Object obj)`
`int`	`hashCode()`
`Angle`	`latitude()`
`Angle`	`longitude()`
`String`	`name()`
`String`	`toString()`

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - PointOfInterest
```
public PointOfInterest(Angle latitude,
                       Angle longitude,
                       String name,
                       String description)
```
    Make a new point of interest (POI).
    
    Parameters:
    
    latitude - latitude of the POI, must be a valid latitude as defined in Angle
    
    longitude - longitude of the POI, must be a valid longitude as defined in Angle
    
    name - name of the POI, must be nonempty
    
    description - description of the POI
- Method Detail
  - latitude
```
public Angle latitude()
```
    Returns:
    
    latitude of this point of interest
  - longitude
```
public Angle longitude()
```
    Returns:
    
    longitude of this point of interest
  - name
```
public String name()
```
    Returns:
    
    nonempty name of this point of interest
  - description
```
public String description()
```
    Returns:
    
    possibly-empty description of this point of interest
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object