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.                                                                                        

Answer 1

The switch statement allows us to execute a block of code among many alternatives

syntax

switch (expression)  {
    case constant1:
        // code to be executed if 
        // expression is equal to constant1;
        break;

    case constant2:
        // code to be executed if
        // expression is equal to constant2;
        break;
        .
        .
        .
    default:
        // code to be executed if
        // expression doesn't match any constant
}

code:

String color ="user defined color";

switch(color){

case blue:

System.out.println("no virus");

break;

case yellow:

System.out.println("N to be under observation");

break;

case red:

System.out.println("Need top be admitted in the covid ward");

break;

}

here the switch statement will take the color and display the message the corresponding message to the local doctor.

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