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public class Main {
public static void main(String args[]) {
Character a = new Character('a');
Character a2 = new Character('a');
Character b = new Character('b');
int difference = a.compareTo(b);
if (difference == 0) {
System.out.println("a is equal to b.");
} else if (difference < 0) {
System.out.println("a is less than b.");
} else if (difference > 0) {
System.out.println("a is greater than b.");
}
System.out.println("a is " + ((a.equals(a2)) ? "equal" : "not equal")
+ " to a2.");
System.out.println("The character " + a.toString() + " is "
+ (Character.isUpperCase(a.charValue()) ? "upper" : "lower") + "case.");
}
}
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