Java Control Structures Quiz
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Questions and Answers

What is the purpose of the 'if' statement in Java?

  • Performs an action if a condition is true and skips it if false (correct)
  • Performs an action if a condition is false and skips it if true
  • Performs an action only if a condition is false
  • Performs an action without any condition

    • Which control structure in Java performs one of several actions based on the value of an expression?

  • if statement
  • while statement
  • do...while statement
  • switch statement (correct)

    • In Java, what does the 'while' statement do?

  • Performs an action only if a condition is false
  • Performs one of several actions based on the value of an expression
  • Performs the action(s) in its body one or more times (correct)
  • Selects or ignores a single action based on a condition

    • What is the characteristic of the 'do...while' statement in Java?

    <p>Performs the action(s) in its body one or more times</p> Signup and view all the answers

    What is the purpose of the 'if...else' statement in Java?

    <p>Performs an action when the condition is true and a different action when the condition is false</p> Signup and view all the answers

    Java's switch statement always evaluates all the cases before executing the corresponding block of code.

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

    The 'for' statement in Java can only perform actions a specific number of times.

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

    The 'do...while' statement in Java always executes its body at least once.

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

    The 'if' statement in Java can only perform a single action.

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

    The 'else' keyword is used alone without the 'if' statement in Java.

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

    Java's switch statement is a _______-selection statement

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

    Java's for statement performs the action(s) in its bodies _______ or more times

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

    The _______ statement in Java performs the action(s) in its body one or more times

    <p>do…while</p> Signup and view all the answers

    Java's if…else statement is a _______-selection statement

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

    The 'while' and 'for' in Java are _______

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

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