Java Control Structures Quiz
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Questions and Answers

What are the three main control structures in any programming language?

  • Sequence, Selection, Repetition (correct)
  • Selection, Repetition, Sequence
  • Repetition, Selection, Switch
  • Sequence, Iteration, Selection
  • Which keyword is used for the selection structure in Java?

  • switch
  • if (correct)
  • if/else
  • else/if
  • What determines the order in which statements are executed in a Java program?

  • Switch structure
  • Sequence structure
  • Control structure (correct)
  • Repetition structure
  • Which control structure is used to execute instructions repeatedly until a logical condition is satisfied?

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

    In a Java program, what determines alternative actions based on different inputs?

    <p>'if/else' ladder(chain)</p> Signup and view all the answers

    What type of statement is used to choose between alternative courses of action in a Java program?

    <p>'if' statement</p> Signup and view all the answers

    What happens if the expression in the if statement is false?

    <p>The statements following the if are skipped</p> Signup and view all the answers

    Which operator is used to check if a value is greater than another value?

    <p>&gt;</p> Signup and view all the answers

    What is the purpose of the equality operator '=='?

    <p>Compare if two values are equal</p> Signup and view all the answers

    In Java, the expression 'x < 0' is used to check if the value of x is:

    <p>Less than 0</p> Signup and view all the answers

    What does the if statement 'if(balance > 0) { fee = 0; }' do?

    <p>Assigns a value of zero to fee if balance is greater than 0</p> Signup and view all the answers

    What does the expression 'hrsWked > 38' check for?

    <p>If hrsWked is greater than 38</p> Signup and view all the answers

    In the code 'if(length == width) { System.out.print("it is square"); }', what does it check?

    <p>If length is equal to width</p> Signup and view all the answers

    What happens if 'totalPrice >= 100' in the code 'if(totalPrice >= 100) { disc = totalPrice * 0.1; totalPrice = totalPrice - disc; }' is true?

    <p>A discount of 10% is applied</p> Signup and view all the answers

    '3 space indentation' mentioned in the text refers to:

    <p>Indenting code blocks by 3 spaces for better readability</p> Signup and view all the answers

    'Everything after the if statement should be indented 3 spaces' implies:

    <p>'if' statements need to be indented by exactly 3 spaces</p> Signup and view all the answers

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