Look back at the program TemperatureReadings3 from Sect. 6.6, which read in and displayed a series of temperature readings. Design and write the code for an additional method, wasHot, which displays...

Look back at the program TemperatureReadings3 from Sect. 6.6, which read in and displayed a series of temperature readings. Design and write the code for an additional method, wasHot, which displays all days that recorded temperatures of 18° or over. When is it appropriate to use an array in a program?