Java Basics Quiz 1
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Questions and Answers

What is the memory allocated for the float data type in Java?

  • 8 bytes
  • 4 bytes (correct)
  • 2 bytes
  • 6 bytes
  • What is the method that every Java application program must have?

  • start
  • run
  • main (correct)
  • execute
  • How many significant digits can a double data type value hold?

  • 20
  • 6 or 7
  • 15 (correct)
  • 10 or 11
  • Which of the following characters can be used to start a single-line comment in Java?

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

    Which Java data type represents single precision values?

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

    What are identifiers in Java?

    <p>Names of variables, methods, classes, etc.</p> Signup and view all the answers

    Which data type in Java is used to represent integers between 2147483648 and 2147483647?

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

    When evaluating an operator in an expression, how is an integer treated in a mixed expression?

    <p>As a decimal number with a decimal part of zero</p> Signup and view all the answers

    Which category of primitive data types in Java is used to deal with characters?

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

    Which reserved word is used to declare a named constant in Java?

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

    What is the maximum number of decimal places in float values?

    <p>6 or 7</p> Signup and view all the answers

    What character set does Java use?

    <p>Unicode (65536 characters)</p> Signup and view all the answers

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