How to use ClickAndHoldAction class of org.openqa.selenium.interactions package

public class Outer {
    public class Inner {}

    public static class Nested {}
}

public class C0 {

    static C0 instance = null;

    // Uncomment the following line and a null pointer exception will be
    // generated before anything gets printed.
    //public static final String outerItem = instance.makeString(98.6);

    public C0() {
        instance = this;
    }

    public String makeString(int i) {
        return ((new Integer(i)).toString());
    }

    public String makeString(double d) {
        return ((new Double(d)).toString());
    }

    public static final class nested {
        public static final String innerItem = instance.makeString(42);
    }

    static public void main(String[] argv) {
        System.out.println("start");
        // Comment out this line and a null pointer exception will be
        // generated after "start" prints and before the following
        // try/catch block even gets entered.
        new C0();
        try {
            System.out.println("retrieve item: " + nested.innerItem);
        }
        catch (Exception e) {
            System.out.println("failed to retrieve item: " + e.toString());
        }
        System.out.println("finish");
    }
}

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