When a cellular telephone sends a text message, the cell carrier encodes the text message and transmits the message to the receiving cellular telephone. The encoded text message is the data of the transmission. In addition to transmitting the data, the cell carrier company also stores metadata. The metadata of the text message includes the time the message was sent, the phone number of the sender, and the phone number of the receiver.

For which of the following goals would it be more useful to computationally analyze the metadata instead of the data?

I. Estimate the number of texts that will be sent next month
II. Determine the most frequently used emoji in text messages
III. Determine if two phones have been in contact in the last week

7. the cullerton park district holds a mini-olympics each summer. create a class named participant with fields for a name, age, and street address. include a constructor that assigns parameter values to each field and a tostring() method that returns a string containing all the values. also include an equals() method that determines two participants are equal if they have the same values in all three fields. create an application with two arrays of at least eight participants each—one holds participants in the mini-marathon, and the other holds participants in the diving competition. prompt the user for participant values. after the data values are entered, display values for participants who are in both events. save the files as participant.java and twoeventparticipants.java.