Use the Delimited Core framework to implement the data processing function in the Java class library
Use the Delimited Core framework to implement the data processing function in the Java class library
Overview:
In Java development, processing various data files is a very common task.Delimited Core is a lightweight Java class library that is used to process text files that include separators (such as comma, formulas, etc.).It provides a simple and efficient way to read, write, and operate these data files, making data processing easier and flexible.
The main features of the Delimited Core framework include:
1. Simple and easy to use: Delimited Core provides a set of simple APIs that can easily read and write various separators files.Developers can quickly get started without too much configuration and settings.
2. High -efficiency processing of large files: Delimited Core is designed to process large data files, which has excellent performance and memory management capabilities when reading and writing data.
3. Data processing function: Delimited Core provides various data processing functions, including data filtering, sorting, aggregation, conversion, etc.Developers can achieve complex data processing operations through simple API calls.
4. Support customized separators: Delimited Core not only supports common separators (such as comma, watchmaking), but also uses other customizers to process data as needed.
Example code:
The following is an example code that uses the Delimited Core framework to show how to read CSV files and calculate the sum of each line of data:
import com.delim.core.CSVReader;
import java.io.IOException;
import java.util.List;
public class DataProcessor {
public static void main(String[] args) {
try {
// Create a CSVReader object, and specify the file path and separator
CSVReader csvReader = new CSVReader("data.csv", ",");
// Read file data and return all row data
List<String[]> rows = csvReader.readAllLines();
// Calculate the sum of each line of data
for (String[] row : rows) {
int sum = 0;
for (String value : row) {
sum += Integer.parseInt(value);
}
System.out.println("Row sum: " + sum);
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
The above code uses the CSV file named "Data.csv" in the CSVReader class in the Delimited Core framework (with a comma as a separator), and then calculates the sum of each line of data and prints output.
in conclusion:
Delimited Core is a powerful and flexible Java class library that helps developers to easily handle various separators files.It provides simple API and rich data processing functions, making data processing easier and efficient.Whether it is processing small or large data files, Delimited Core is a tool worth exploring and using.
