查询水果价格java
时间: 2023-12-13 13:33:24 浏览: 139
以下是Java代码,可以通过水果序号查询水果价格:
```java
import java.util.HashMap;
public class Fruit {
private HashMap<String, Double> priceMap;
public Fruit() {
priceMap = new HashMap<String, Double>();
priceMap.put("apple", 3.00);
priceMap.put("pear", 2.50);
priceMap.put("orange", 4.10);
priceMap.put("grape", 10.20);
}
public double getPrice(String fruitName) {
if (priceMap.containsKey(fruitName)) {
return priceMap.get(fruitName);
} else {
System.out.println("Sorry, we don't have this fruit.");
return 0.0;
}
}
public static void main(String[] args) {
Fruit kind = new Fruit();
String fruitName = "apple";
double price = kind.getPrice(fruitName);
if (price != 0.0) {
System.out.println("The price of " + fruitName + " is " + price + " yuan/kg.");
}
}
}
```
输出结果为:
```
The price of apple is 3.0 yuan/kg.
```