how to get the last element of array in java

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get last element of array java -

firstNum = numbers[0];
lastNum = numbers[numbers.length-1];

get last index of array java -

int[] someArray = {1,2,3,4,5};
int first = someArray[0];
int last = someArray[someArray.length - 1];
System.out.println("First: " + first + "\n" + "Last: " + last);

find last element in array in java -

firstNum = numbers.get(0);
lastNum = numbers.get(numbers.size() - 1); 

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