AI助手支持GPT4.0
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
public class Main {
public static void main(String[] args) {
List<ExcelInput> inputs = getExcelInputs();
// 使用lambda表达式和Java Stream API统计getExcelA属性相同的个数
Map<String, Long> countByExcelA = inputs.stream()
.collect(Collectors.groupingBy(ExcelInput::getExcelA, Collectors.counting()));
// 输出统计结果
countByExcelA.forEach((excelA, count) -> System.out.println(excelA + ": " + count));
}
private static List<ExcelInput> getExcelInputs() {
// 返回ExcelInput对象的集合
}
}