Type Casting and Operators in Object Oriented Programming
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Questions and Answers

What is the purpose of the break statement in a switch statement?

  • To execute the next `case` statement regardless of the value of the `switch-expression`
  • To terminate the current `case` statement and prevent the execution of the remaining `case` statements (correct)
  • To terminate the entire `switch` statement
  • To print a default message if none of the `case` statements match the `switch-expression`
  • Which of the following is a valid switch-expression in a switch statement?

  • A boolean expression
  • A character, byte, short, or integer expression (correct)
  • A string
  • A floating-point number
  • What is the purpose of the default case in a switch statement?

  • To execute the statements regardless of the value of the `switch-expression`
  • To print a message if the `switch-expression` is invalid
  • To execute the statements if none of the specified `case` statements match the `switch-expression` (correct)
  • To execute the statements if all of the specified `case` statements match the `switch-expression`
  • Which of the following is a valid case statement in a switch statement?

    <p>case 'a': ...</p> Signup and view all the answers

    Int number = 18; console.log("The result is: " + ((number % 2 == 0) ^ (number % 3 == 0)));

    <p>The number is even and divisible by 3</p> Signup and view all the answers

    What is the purpose of the switch statement in programming?

    <p>To handle multiple conditions with a single expression</p> Signup and view all the answers

    What is the purpose of the break statement in a switch statement?

    <p>To exit the <code>switch</code> statement and continue to the next line of code</p> Signup and view all the answers

    What is the purpose of the default case in a switch statement?

    <p>To execute a set of statements if none of the <code>case</code> values match the <code>switch</code> expression</p> Signup and view all the answers

    In the code switch (day) { case 1: case 2: case 3: case 4: case 5: System.out.println("Weekday"); break; case 0: case 6: System.out.println("Weekend"); }, what will be the output if day is 2?

    <p>Weekday</p> Signup and view all the answers

    In the code switch (day) { case 1: case 2: case 3: case 4: case 5: System.out.println("Weekday"); break; case 0: case 6: System.out.println("Weekend"); }, what will be the output if day is 3?

    <p>Weekday</p> Signup and view all the answers

    What is the purpose of the conditional operator (?:) in Java?

    <p>To assign a value to a variable based on a condition</p> Signup and view all the answers

    What is the purpose of the else clause in an if-else statement?

    <p>To execute a different set of statements if the <code>if</code> condition is false</p> Signup and view all the answers

    Which of the following is the correct syntax for a two-way if-else statement in Java?

    <p>if (boolean-expression) { statement(s)-for-the-true-case; } else { statement(s)-for-the-false-case; }</p> Signup and view all the answers

    What is the purpose of the else if statements in a multiple alternative if statement?

    <p>To provide additional conditions to be evaluated if the previous <code>if</code> or <code>else if</code> conditions are false</p> Signup and view all the answers

    In a multi-way if-else statement, how are the conditions evaluated?

    <p>The conditions are evaluated in the order they are written, and the first true condition is executed</p> Signup and view all the answers

    What is the output of the following code when the score variable is 70.0?

    <p>C</p> Signup and view all the answers

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