Java Programming Basics
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Questions and Answers

What is NOT typically a rule for naming variables in Java?

  • Variable names are case-sensitive.
  • Variable names can use special characters like & and %. (correct)
  • Variable names can start with a letter.
  • Variable names must not contain spaces.

    • Which of the following best describes a loop in Java?

  • A loop always executes a fixed number of times regardless of conditions.
  • A loop can execute a block of code repeatedly based on a condition. (correct)
  • A loop is used for declaring variables in the program.
  • A loop is a structure that executes a block of code only once.

    • Which type of operation is NOT performed by standard arithmetic operators in Java?

  • Addition
  • Concatenation (correct)
  • Division
  • Subtraction

    • Which statement is true regarding 'if' statements in Java?

    <p>An 'if' statement can include logical operators for complex conditions.</p> Signup and view all the answers

    What is a typical use for functions in Java?

    <p>To execute repetitive tasks without code duplication.</p> Signup and view all the answers

    Which of the following is a valid naming convention for variables in Java?

    <p>VariableName123</p> Signup and view all the answers

    What is the primary function of an operator in Java?

    <p>To perform operations on variables</p> Signup and view all the answers

    Which data type would you use to store a true or false value in Java?

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

    What will the following code evaluate to: int x = 5; if (x < 10) { return true; } else { return false; }?

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

    What control structure is commonly used to repeat a block of code multiple times in Java?

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

    Which of the following best describes a function in Java?

    <p>A sequence of statements that performs a specific task</p> Signup and view all the answers

    What is the result of using the modulus operator in an expression like 10 % 3?

    <p>1</p> Signup and view all the answers

    What keyword is used to define a function in Java?

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

    In which situation would a break statement be most useful?

    <p>To exit a loop prematurely</p> Signup and view all the answers

    How do you denote a single-line comment in Java?

    <p>// This is a comment</p> Signup and view all the answers

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