Given two variables, is Empty of type boolean, indicating whether a class roster is empty or not, and number Of Credits of type int, containing the number of credits for a class, write an expression that evaluates to true if the class roster is empty or the class is exactly three credits.

if (isEmpty || numOfCredits==3) {

}

Explanation:

Consider a complete java program below that prompts user for number of credits and also asks if class roster is empty or not

import java. util. Scanner;

public class num13 {

public static void main (String[] args) {

boolean isEmpty = false;

Scanner in = new Scanner (System. in);

System. out. println ("Is class Rooster Empty? Yes or No");

String ans = in. next ();

if (ans. equalsIgnoreCase ("yes")) {

isEmpty = true;

}

else isEmpty = false;

System. out. println ("Enter number of credits");

int numOfCredits = in. nextInt ();

if (isEmpty||numOfCredits==3) {

System. out. println ("True");

}

else {

System. out. println ("Not true");

}

}

}