ADD file via upload

src/TimeManager.java

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+// Timemanage.java
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+/**
+ * 时间管理工具类。
+ */
+public class TimeManager {
+  public static void main(String[] args) {
+    TimeManager timeManager = new TimeManager();
+    System.out.println(timeManager.getCurrentTime());
+  }
+
+  public String getCurrentTime() {
+    LocalDateTime now = LocalDateTime.now();
+    DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy年-MM月-dd日-HH时-mm分-ss秒");
+    return now.format(formatter);
+  }
+}