Which statement is true about the program? Assume that the decimal sign is a dot(.) and the grouping character is a comma ( ,) for the US locale.
public class Main { public static void main(String[] args) { // (1) DECLARATION INSERTED HERE ... System.out.println(parseNumber(inputStr)); }/* w w w. j a v a 2 s.c o m*/ public static Number parseNumber(String inputString) { NumberFormat nfUS = NumberFormat.getNumberInstance(Locale.US); Double num = nfUS.parse(inputString); return num; } }
Select the one correct answer.
(a) The following declaration, when inserted at (1), will result in the program
compiling without errors and executing normally:
String inputStr = "1234.567";
(b) The following declaration, when inserted at (1), will result in the program
compiling without errors and executing normally:
String inputStr = "0.567";
(c) The following declaration, when inserted at (1), will result in the program
compiling without errors and executing normally:
String inputStr = "1234..";
(d) The following declaration, when inserted at (1), will result in the program
compiling without errors and executing normally:
String inputStr = "1,234.567";
(e) The following declaration, when inserted at (1), will result in the program
compiling without errors and executing normally:
String inputStr = "1 234.567";
(f) Regardless of which declaration from (a) to (e) is inserted for the input reference at (1), the program will not compile.
(g) Regardless of which declaration from (a) to (e) is inserted for the input reference at (1), the program will compile, but result in an exception at runtime.
(f)
(f) The method parseNumber() does not catch the ParseException that can be thrown by the parse() method.
The parse() method returns a Number, which is not assignment compatible to a reference of type Double.
If these errors are corrected, the alternatives from (a) to (e) give the following outputs, respectively:
1234.567 0.567 1234 1234.567 1