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When would you use array vs arraylist java
When would you use array vs arraylist java













when would you use array vs arraylist java

This method returns true if the calling ArrayList object contains the specific element as given in the argument list, otherwise it returns false.īelow is the example program of boolean contains(Object element) method is as: import Output: aListCopy elements copied from aList1= ("aListCopy elements copied from aList1= "+aListCopy)

when would you use array vs arraylist java

Using clone() method to copy aList1 into a new aListCopy ArraylistĪrrayList aListCopy = (ArrayList) aList1.clone() This method returns the exact same copy of the arraylist object.īelow example helps us to understand this method easily: import Printing aList element after using clear method= Output: Printing aList items before using clear method= ("size of aList1 after clear() method= " + aList.size()) ("Printing aList element after using clear method= "+aList)

when would you use array vs arraylist java

("Printing size of aList1= " + aList.size()) ("Printing aList items before using clear method= "+aList) let us print all the elements available in aList use add() method to add elements in the list This method remove all the elements of the arraylist.īelow the example program clear() method shows the working of this method: import Output: Integer Number Added in ArrayList= ("Integer Number Added in ArrayList= " + aList) The Example program of this boolean add(Object o) method is as: import It returns True if element is successfully added, and returns false if it is not.It adds an element of Specific Object type at the end of Arraylist as no index is mentioned in the method.















When would you use array vs arraylist java