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GeoPt (Google App Engine API for Java)

java.lang.Object
- com.google.appengine.api.datastore.GeoPt

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<GeoPt>
```
public final class GeoPt
extends java.lang.Object
implements java.io.Serializable, java.lang.Comparable<GeoPt>
```
A geographical point, specified by float latitude and longitude coordinates. Often used to integrate with mapping sites like Google Maps.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field and Description

static double EARTH_RADIUS_METERS

static long serialVersionUID

Constructor Summary

Constructors
Constructor and Description

GeoPt(float latitude, float longitude)
Constructs a GeoPt.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`int`	`compareTo(GeoPt o)` Sort first by latitude, then by longitude
`boolean`	`equals(java.lang.Object o)`
`float`	`getLatitude()`
`float`	`getLongitude()`
`int`	`hashCode()`
`java.lang.String`	`toString()`

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

- Field Detail
  - serialVersionUID
```
public static final long serialVersionUID
```
    See Also:
    
    Constant Field Values
  - EARTH_RADIUS_METERS
```
public static final double EARTH_RADIUS_METERS
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - GeoPt
```
public GeoPt(float latitude,
             float longitude)
```
    Constructs a GeoPt.
    
    Parameters:
    
    latitude - The latitude. Must be between -90 and 90 (inclusive).
    
    longitude - The longitude. Must be between -180 and 180 (inclusive).
    
    Throws:
    
    java.lang.IllegalArgumentException - If latitude or longitude is outside the legal range.
- Method Detail
  - getLatitude
```
public float getLatitude()
```
  - getLongitude
```
public float getLongitude()
```
  - compareTo
```
public int compareTo(GeoPt o)
```
    Sort first by latitude, then by longitude
    
    Specified by:
    
    compareTo in interface java.lang.Comparable<GeoPt>
  - equals
```
public boolean equals(java.lang.Object o)
```
    Overrides:
    
    equals in class java.lang.Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025-06-16 UTC.

Modifier and Type	Field and Description
`static double`	`EARTH_RADIUS_METERS`
`static long`	`serialVersionUID`

GeoPt (Google App Engine API for Java) Stay organized with collections Save and categorize content based on your preferences.

Class GeoPt

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

serialVersionUID

EARTH_RADIUS_METERS

Constructor Detail

GeoPt

Method Detail

getLatitude

getLongitude

compareTo

equals

hashCode

toString

GeoPt (Google App Engine API for Java)