Write the output produced when the following methods is passed each of the follo
ID: 3780340 • Letter: W
Question
Write the output produced when the following methods is passed each of the following maps:
public static void mystery(Map<String, String> m) {
Set<String> s = new TreeSet(String);
for (String key : m.keySet()){
if (!m.get(key).equals(key)) {
s.add(m.get(key));
} else {
s.remove(m.get(key));
}
}
System.out.println(s);
}
a. {sheep=wool, house=brick, cast=plaster, wool=wool}
b. {ball=blue, winkie=yellow, corn=yellow, grass=green, emerald=green}
c. {pumpkin=peach, corn =apple, apple=apple, pie=fruit, peach=peach}
d. {lab=ipl, lion=cat, corgi=dog, cat=cat, emu=animal, nyan=cat}
Explanation / Answer
Answers:
a. {sheep=wool, house=brick, cast=plaster, wool=wool} will print [brick, plaster]
b. {ball=blue, winkie=yellow, corn=yellow, grass=green, emerald=green} will print [blue, green, yellow]
c. {pumpkin=peach, corn =apple, apple=apple, pie=fruit, peach=peach} will print [apple, fruit]
d. {lab=ipl, lion=cat, corgi=dog, cat=cat, emu=animal, nyan=cat} will print [animal, cat, dog, ipl]
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