Second Largest Element In An Array In Java | FREE DSA Course in JAVA | Lecture 50
In this lecture, we have to find the second largest element in an array.
In the previous lecture, we have seen how we can calculate the largest and smallest element in an array.
This program is a bit different because now we have to find the second-largest element in an array.
How are we going to do so?
It is simple. First of all, we have to find the largest element as well in the array because then only we can decide which is the second largest.
To find the desired results and the second largest element in an array, we will take two variables max 1 & max 2.
We will take the first two elements of the array and store the maximum of both to max 1 and the other to max 2.
Now we will run a loop from the third element to the end of the loop with if & else condition such that:-
if a[i] is greater than max 1 store that in max 1 else if a[i] is greater than max 2 store that in max 2.
In this way, once the loop will end, we will be able to get our desired results.
A similar logic can be used to find the second smallest element of an array with slightly different conditions.
Let's see the java program to find the second largest element in an array.
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