Which of the following statements are true regarding the HashSet class?

/**/
document.oncopy = new Function("return false");
document.onpaste = new Function("return false");
document.onselectstart = new Function("return false");
document.oncontextmenu = new Function("return false"); /**/

Question

Which of the following statements are true regarding the HashSet class?

/**/
    document.oncopy = new Function("return false");
    document.onpaste = new Function("return false");
    document.onselectstart = new Function("return false");
    document.oncontextmenu = new Function("return false"); /**/

Answer

HashSet allows null value

Answer

It does not allow duplicate values

Answer

HashSet class is non synchronized

Answer

HashSet uses the add() method to add element

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Which of the following statements are true regarding the HashSet class? ...

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