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// Unit test

public class PositiveChecker<T extends Number>{

    private T num;

    public PositiveChecker(T num){

        this.num = num;

    }

    public boolean amIPositive(){

        return num.doubleValue() > 0;

    }

    public static void testAmIPositive(){

        PositiveChecker<Integer> num1 = new PositiveChecker<>(3);

        if(num1.amIPositive()){

            System.out.println("yes, function works");

        }

        else{

            System.out.println("nah dude, I ain't work");

        }

    }

    public static void main(String[] args){

        testAmIPositive();

    }

}

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