Authors:
Stuart Reges, Marty Stepp
Chapter:
Arrays
Exercise:
Exercises
Question:1 | ISBN:9780136091813 | Edition: 2
Question
Write a method called lastIndexOf that accepts an array of integers and an integer value as its parameters and returns the last index at which the value occurs in the array. The method should return –1 if the value is not found. For example, in the array {74, 85, 102, 99, 101, 85, 56}, the last index of the value 85 is 5.
Answer
Implementation of lastIndexOf method:
public static int lastIndexOf(int arr[], int value)
{
for(int i = arr.length - 1; i >= 0; i--)
{
if(arr[i] == value)
return i;
}
return -1;
}