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public class MainClass {
static <T, V extends T> boolean isIn(T x, V[] y) {
for (int i = 0; i < y.length; i++){
if (x.equals(y[i])){
return true;
}
}
return false;
}
public static void main(String args[]) {
Integer nums[] = { 1, 2, 3, 4, 5 };
if (isIn(2, nums)){
System.out.println("2 is in nums");
}
if (!isIn(7, nums)){
System.out.println("7 is not in nums");
}
// Use isIn() on Strings.
String strs[] = { "one", "two", "three", "four", "five" };
if (isIn("two", strs))
System.out.println("two is in strs");
if (!isIn("seven", strs))
System.out.println("seven is not in strs");
}
}
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