count time

src/test/java/count/Count.java

@@ -1,5 +1,9 @@
 package count;
 
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
 public class Count {
 	double charging(int lengthtime)
 	{
@@ -11,5 +15,19 @@ public class Count {
 			return 10+(lengthtime-100)*0.1;
 		
 	}
+	private static long dateMethod(String beginReceiveTime,String lastReceiveTime) {
+		DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+		try {
+			Date date1 = df.parse(beginReceiveTime);
+			Date date2 = df.parse(lastReceiveTime);
+			long diff = date1.getTime() - date2.getTime();
+			long minutes = diff / (1000 * 60);
+			return minutes;
+		} catch (Exception e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+		return 0;
+	}
 
 }