java代码生成1万条6个特征和一个结果的数据，并且数据浮动在正负0.05之间，将数据写入xlsx

好的，我可以为您提供Java代码来生成1万条6个特征和一个结果的数据，并且数据浮动在正负0.05之间，并将数据写入XLSX文件中。以下是代码示例：

import java.io.File;
import java.io.FileOutputStream;
import java.math.BigDecimal;
import java.util.Random;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class GenerateData {

    private static final int ROWS = 10000; // 数据行数
    private static final int FEATURES = 6; // 特征数
    private static final String[] FEATURE_NAMES = {"feature1", "feature2", "feature3", "feature4", "feature5", "feature6"}; // 特征名称
    private static final String RESULT_NAME = "result"; // 结果名称
    private static final double FLUCTUATION = 0.05; // 浮动范围

    public static void main(String[] args) {
        XSSFWorkbook workbook = new XSSFWorkbook();
        Sheet sheet = workbook.createSheet("data");

        // 创建表头
        Row headerRow = sheet.createRow(0);
        for (int i = 0; i < FEATURES; i++) {
            Cell cell = headerRow.createCell(i);
            cell.setCellValue(FEATURE_NAMES[i]);
        }
        Cell resultCell = headerRow.createCell(FEATURES);
        resultCell.setCellValue(RESULT_NAME);

        // 生成数据
        Random random = new Random();
        for (int i = 1; i <= ROWS; i++) {
            Row row = sheet.createRow(i);
            double[] features = new double[FEATURES];
            for (int j = 0; j < FEATURES; j++) {
                double value = random.nextDouble() * FLUCTUATION * 2 - FLUCTUATION; // 生成浮动值
                features[j] = new BigDecimal(value).setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue(); // 保留两位小数
                Cell cell = row.createCell(j);
                cell.setCellValue(features[j]);
            }
            double result = random.nextDouble() * FLUCTUATION * 2 - FLUCTUATION;
            Cell resultCellData = row.createCell(FEATURES);
            resultCellData.setCellValue(new BigDecimal(result).setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue()); // 保留两位小数
        }

        // 写入XLSX文件
        try {
            FileOutputStream outputStream = new FileOutputStream(new File("data.xlsx"));
            workbook.write(outputStream);
            workbook.close();
            System.out.println("数据已生成并写入文件！");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

在运行该代码后，您将在当前目录下找到名为" data.xlsx "的文件，其中包含1万行6个特征和一个结果的数据，数据浮动在正负0.05之间。