Please check the Example below and follow the standard QnA format with the keywords "Question: " and "Answer: ".
The template is provided in the text area below the Example. Just fill in the blanks there. There is no limit for a number of answers and a correct answer must be placed first. The program will randomly shuffle the answers for end users.
Optional (extra points) to place Explanation for every answer. Place source sample inside HTML pre tags.
----------- Example (subject: Java Introduction) -------------

Question: What output will be produced by the following source?
String[] lines = new String[5];
if(lines[4].length() == 0) {
if(com.its.util.Parser.debugLevel)System.out.println("Hello to EMPTY line!");
}

Answer: Run-time error
Answer: Compiler error
Answer: "Hello to EMPTY line!
Answer: No output will be produced.

Explanation: Run-time error is the correct answer. The array of lines is not initiated with values. So, lines[4].length() - will cause an Exception as the lines object is null.

Explanation: Wrong answer. Compiler will not notice this error.

Explanation: Wrong answer. The program will not survive to produce this line.

----------- End of Example --------------

----------- You can submit several QnAs at once; just start another one after the Explanation like here --------------

Question: etc....
..................
----------- End of all QnAs --------------