利用Java解决解析一个文件中的价格数据,并计算平均价格,该文件的内容如下: 商品列表: 电视机,2567/台 洗衣机,3562/台 冰箱,6573/台
时间: 2024-04-30 15:24:36 浏览: 52
好的,我能够帮您解决这个问题。您可以编写Java代码读取该文件的内容并分解商品和价格信息。您可以使用字符串分割函数将商品和价格分离开。例如,使用“,”将商品名称和价格分开,使用“/”将价格和单位分开。
接下来,您可以将价格转换为数字格式并将其累加到总价格中。最后,您可以计算平均价格,即将总价格除以商品数量。
以下是Java代码示例:
```java
import java.io.*;
import java.util.*;
public class ReadFile {
public static void main(String[] args) throws IOException {
String fileName = "filename.txt";
File file = new File(fileName);
BufferedReader reader = new BufferedReader(new FileReader(file));
int itemCount = 0;
double totalPrice = 0;
// Read file line by line
String line;
while ((line = reader.readLine()) != null) {
// Split line into item name and price
String[] parts = line.split(",");
String itemName = parts[0];
String[] priceParts = parts[1].split("/");
double itemPrice = Double.parseDouble(priceParts[0]);
// Accumulate total price
totalPrice += itemPrice;
// Count number of items
itemCount++;
}
// Calculate average price
double averagePrice = totalPrice / itemCount;
// Print results
System.out.println("Number of items: " + itemCount);
System.out.println("Total price: " + totalPrice);
System.out.println("Average price: " + averagePrice);
}
}
```
您可以将文件名更改为实际文件名,并执行该代码以分析文件中的商品价格。
阅读全文
相关推荐










