Java - Switch case

In a switch case statement, what happens if none of the cases match the value of the expression?

• The program terminates.

• The default case is executed (if provided).

• An error is generated.

• The program goes into an infinite loop.

In a switch case statement, what is the purpose of the "case" keyword?

• To specify a condition

• To define a variable

• To start a loop

• To identify a code block to execute

Which data type is commonly used as the expression inside a switch case statement?

• int

• float

• boolean

• string

public class Main {

public static void main(String[] args) {

int score = 85;

switch (score / 10) {

case 10:

case 9:

System.out.println("A");

break;

case 8:

System.out.println("B");

case 7:

System.out.println("C");

break;

default:

System.out.println("D or F");

}

}

}

• error

• A

• B

• B

  C

public class Main {

public static void main(String[] args) {

int num = 90; // ASCII 90 is Z

switch ((char) (num - 21)) {

case 'A':

System.out.println("Found A");

break;

case 'E':

System.out.println("Found E");

case 'I':

System.out.println("Found I");

break;

case 'Z':

System.out.println("Found Z");

break;

default:

System.out.println("Found something else");

}

}

}

• Found Z

• Found E

  Found I

• Error

• Found something else