The lastIndexOf() method of ArrayList in Java is used to get the index of the last occurrence of an element in an ArrayList object.
Parameter : The element whose last index is to be returned.
It returns the last occurrence of the element passed in the parameter. It returns -1 if the element is not found.
Program to demonstrate the working of lastIndexOf():
The list initially [10, 20, 30, 40, 30, 30, 40] the lastIndexof of 30 is 5 100 is not present in the list
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