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What will be the output of the following program?

public class SystemDemo {
    public static void main(String[] args) {
        String str = System.getProperty("dog", "cat");
        System.out.print(str + ", ");
        str = System.getProperty("", "duck");
        System.out.print(str);
    }
}


cat, duck
dog, (EMPTY)
Compilation Error
Runtime Error

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Topic: Java Environment Properties

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