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Questions and Answers
What does a comment that begins with // indicate in Java?
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?
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?
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?
What does the 'public' keyword indicate in a class declaration in Java?
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What does a traditional comment in Java begin with?
What does a traditional comment in Java begin with?
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What must be the name of the file to store a public class named Welcome1?
What must be the name of the file to store a public class named Welcome1?
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Which symbol begins the body of every class declaration in Java?
Which symbol begins the body of every class declaration in Java?
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What does the System.out.println method do in Java?
What does the System.out.println method do in Java?
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How is the Java bytecode represented in a file after successful compilation?
How is the Java bytecode represented in a file after successful compilation?
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What command is used to execute a Java application from the command line?
What command is used to execute a Java application from the command line?
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