Java Programming: Hello World Analysis
18 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the purpose of the 'public class Hello' line in the Java program?

  • To define the main method
  • To indicate the start of a class named Hello (correct)
  • To declare a collection of programming instructions
  • To specify the program execution instructions

    • Why does a Java program need a method called main?

  • To define the class attributes
  • To indicate the start of program execution (correct)
  • To carry out a particular task
  • To make the application accessible from the outside

    • What is the significance of the curly brackets { } in Java programs?

  • To specify program execution
  • To mark where a class begins and ends (correct)
  • To contain class attributes
  • To indicate method definitions

    • What does the 'public' keyword denote in Java programs?

    <p>It specifies access level</p> Signup and view all the answers

    Why does every class name in Java start with a capital letter?

    <p>To comply with programming conventions</p> Signup and view all the answers

    What is the role of a method in Java programming?

    <p>To carry out a specific task</p> Signup and view all the answers

    What is the purpose of the semi-colon at the end of every instruction in Java?

    <p>To indicate the end of a statement</p> Signup and view all the answers

    Which statement best describes the function of 'System.out.print' in Java?

    <p>It displays text on the screen without starting a new line</p> Signup and view all the answers

    What is the difference between 'System.out.print' and 'System.out.println'?

    <p>'System.out.println' starts a new line, while 'System.out.print' does not</p> Signup and view all the answers

    What does the term 'String' refer to in Java programming?

    <p>A sequence of characters enclosed in double quotes</p> Signup and view all the answers

    What is the purpose of comments in a Java program?

    <p>To convey information about the code such as filenames or explanations of its functions</p> Signup and view all the answers

    How are comments written in Java for one-line comments?

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

    What is the function of a method in Java programming?

    <p>To perform certain tasks and can return information if necessary</p> Signup and view all the answers

    What is the purpose of saving a Java program with the same name as the class name?

    <p>It helps the compiler identify the program to be executed</p> Signup and view all the answers

    What must be done before running a Java program to ensure it is error-free?

    <p>Compile it and check for any error messages</p> Signup and view all the answers

    What is the significance of curly brackets { } in Java programs?

    <p>They indicate the start and end of methods, classes, and statements</p> Signup and view all the answers

    Which error type is detected by the compiler in Java programs?

    <p>Syntax error (Compile time error)</p> Signup and view all the answers

    What does 'System.ou.println' illustrate as an error in Java programs?

    <p>A syntax error detected by the compiler</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser