Question 1 (20 marks)

List the advantages and disadvantages of using locales to label cultural information.

Question 2 (20 marks)

A locale is usually represented by a string "ll_CC" where the first two characters in lower-case represent a language and the last two characters in upper-case represent a country. Write a method in Java

    boolean isISO(String locale)

which will return true if both the language and the country codes are ISO codes, and false otherwise.

Question 3 (20 marks)

Write a method in Java

    Font[] canShowString(String s)

which, for the given string s, will return all of the fonts that can display all of the characters in the string s.

Question 4 (20 marks)

Write an input method in Java that will only accept digit characters and discard any others. Only write the code for the method dispatchEvent(). If your code uses methods unchanged that have been given in the lecture notes, there is no need to repeat those methods.

Question 5 (20 marks)

A URI normally consists of ASCII characters. However, it may also contain escape sequences "%HH" where "HH" is a pair of characters representing hexadecimal digits. Write a method in Java

    String normaliseURI(String s)

which will take the string s for a URI and return a new URI where all escape sequences have been replaced by their ASCII equivalent.