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()));
// 使用lambda表达式筛选统计结果
Map<String, Long> result = countByExcelA.entrySet().stream()
.filter(entry -> entry.getValue() > 2)
.collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
}
private static List<ExcelInput> getExcelInputs() {
// 返回ExcelInput对象的集合
}
}