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What will be the output of the following program?

public class Compare {
    public static void main(String[] args) {
        Boolean pen = true;
        Boolean pencil = false;
        System.out.println(!pen.booleanValue());
        System.out.println(Boolean.compare(pen, pencil));
        System.out.println(pencil.compareTo(pen));
    }
}


false
1
-1
false
-1
1
Compilation Error
Runtime Error

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Topic: Java Boolean Class

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