Question

Write a switch statement that uses the colour of a swab sample of COVID testing vehicle to send a message to a local doctor. Use the messages given for each colour in the table below. Justify your answer.                                                                                        

Colour	Message
Blue	“No virus”
Yellow	“Needs to be under observation”
Red	“Needs to be admitted in COVID ward”

Answer 1

// Assuming that color is a string which already is declared and assigned a string value
switch (color) {    // switch on color
    case "Blue":    // if the color is Blue
        System.out.println("No virus"); // print "No virus"
        break;
    case "Yellow":  // if the color is Yellow
        System.out.println("Needs to be under observation");
        break;
    case "Red":  // if the color is Red
        System.out.println("Needs to be admitted in COVID ward");
        break;
}