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Java Fundamentals: Writing Simple Programs Quiz

10 Questions

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Java Fundamentals: Writing Simple Programs Quiz

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Questions and Answers

What does a comment that begins with // indicate in Java?

It indicates a syntax error

It indicates the start of the main method

It indicates the end of the class declaration

It indicates that the line is a comment and is used to document programs and improve their readability (correct)

Why are blank lines, space characters, and tabs used in Java programs?

To make the program more difficult to read

To define data types

To indicate the end of a statement

To make the programs easier to read (correct)

Which keyword introduces a class declaration in Java?

method

variable

package

class (correct)

What does the 'public' keyword indicate in a class declaration in Java?

It indicates that the class is public and can be accessed from other classes Signup and view all the answers

What does a traditional comment in Java begin with?

/** Signup and view all the answers

What must be the name of the file to store a public class named Welcome1?

welcome1.java Signup and view all the answers

Which symbol begins the body of every class declaration in Java?

{ Signup and view all the answers

What does the System.out.println method do in Java?

Displays a line of text in the command window and positions the output cursor at the beginning of the next line Signup and view all the answers

How is the Java bytecode represented in a file after successful compilation?

.class Signup and view all the answers

What command is used to execute a Java application from the command line?

java Welcome1 Signup and view all the answers