これは私の最初の Java プロジェクトです。
それで、私は自分のシミュレーション プロジェクトに取り組んでいますが、私の中心的なもののいくつかが失敗してしまいました。私が今注目している 2 つのクラスがあります。決済と、決済を拡張する townRey です。
試してみるとエラーがスローされます
System.out.println(townRey.returnStrength());
ここに私の2つの関連するクラスがあります:
決済：
public class settlement
{
//
//
// VARIABLES
//
//
/**
* The town's unique name.
*/
public String name;
/**
* The settlement's location in latitude (N-S)
*/
public int latitude;
/**
* The settlement's location in longitude (E-W)
*/
public int longitude;
/**
* What faction a town or village is aligned to. This determines production and consumption, mostly.
*/
public String faction;
/**
* What a specific village or town produces.
*/
public String[] production;
/**
* What a specific town consumes (villages don't consume)
*/
public String[] consumption;
/**
* How dangerous a specific town is with bandits
* A 1-10 scale, with 10 being the most dangerous.
* Any town with a danger over 8 can be raided and destroyed temporarily by bandits.
* Being raided successfully depends on the Strength of a town.
*/
public int danger;
/**
* How much a town takes in taxes.
*/
public float tax;
/**
* How easily a town is raided by bandits.
* If a bandit raid has a lower strength than the town, then the town wins.
*/
public int strength;
//
//
// METHODS
//
//
public int returnLatitude()
{
return latitude;
}
public int returnLongitude()
{
return longitude;
}
public String returnFaction()
{
return faction;
}
public String[] returnProduction()
{
return production;
}
public String[] returnConsumption()
{
return consumption;
}
public int returnDanger()
{
return danger;
}
public float returnTax()
{
return tax;
}
public int returnStrength()
{
return strength;
}
}
とタウンレイ:
public class townRey extends settlement
{{
name = "Rey";
latitude = 5;
longitude = 5;
String faction = "Nord";
String[] production;
String[] consumption;
danger = 1;
tax = 0.05F;
strength = 6;
}}
編集::すべての助けをありがとう! 今、すべての問題を修正しました。以下は「決済」と「開始」です。
public class Settlement
{
//
//
// VARIABLES
//
//
/**
* The town's unique name.
*/
public String name;
/**
* The settlement's location in latitude (N-S)
*/
public int latitude;
/**
* The settlement's location in longitude (E-W)
*/
public int longitude;
/**
* What faction a town or village is aligned to. This determines production and consumption, mostly.
*/
public String faction;
/**
* What a specific village or town produces.
*/
public String[] production;
/**
* What a specific town consumes (villages don't consume)
*/
public String[] consumption;
/**
* How dangerous a specific town is with bandits
* A 1-10 scale, with 10 being the most dangerous.
* Any town with a danger over 8 can be raided and destroyed temporarily by bandits.
* Being raided successfully depends on the Strength of a town.
*/
public int danger;
/**
* How much a town takes in taxes.
*/
public float tax;
/**
* How easily a town is raided by bandits.
* If a bandit raid has a lower strength than the town, then the town wins.
*/
public int strength;
//
//
// METHODS
//
//
public int returnLatitude()
{
return latitude;
}
public int returnLongitude()
{
return longitude;
}
public String returnFaction()
{
return faction;
}
public String[] returnProduction()
{
return production;
}
public String[] returnConsumption()
{
return consumption;
}
public int returnDanger()
{
return danger;
}
public float returnTax()
{
return tax;
}
public int returnStrength()
{
return strength;
}
}
ここで「townRey」を作成し、2 つの異なる方法でデータにアクセスします。
public class Start
{
public static void main(String[] args)
{
//Creates 'Rey'
Settlement townRey = new Settlement();
townRey.name = "Rey";
townRey.latitude = 5;
townRey.longitude = 5;
townRey.faction = "Nord";
townRey.danger = 1;
townRey.tax = 0.05F;
townRey.strength = 6;
//This calls the returnLongitude method from Settlement, and is the 'proper' way to do it.
System.out.println(townRey.returnLongitude());
//This also works.
System.out.println(townRey.longitude);
//Thanks for the help!
}
}